Abstract

We demonstrate the first electronically switchable Bragg structure for THz frequencies. The structure works as stop-band filter and as mirror. It exhibits the 60 GHz broad stop-band around 300 GHz which can be removed by reorienting liquid crystal molecules in an external electric field. Our first proof-of-principle experiments agree very well with transfer matrix calculations.

© 2009 Optical Society of America

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  1. M.  Walther, B.M. Fischer, and P. U. Jepsen, "Noncovalent intermolecular forces in polycrystalline and amorphous saccharides in the far infrared," Chem. Phys. 288, 261-268 (2003).
    [CrossRef]
  2. M. Hangyo, M. Tani, and T. Nagashima, "Terahertz Time-Domain Spectroscopy of Solids: A Review," Int. J. Infrared Millim. Waves 26, 1661-1690 (2006).
    [CrossRef]
  3. S. Chatterjee, T. Grunwald, D. Köhler, K. Pierz, D. Golde, M. Kira, and S.W. Koch, "THz measurements of the optical response in a two-dimensional electron gas," Phys. Status Solidi 6, 453-456 (2009).
    [CrossRef]
  4. S. Leinß, T. Kampfrath, K. v. Volkmann, M. Wolf, J. T. Steiner, M. Kira, S. W. Koch, A. Leitenstorfer, and R. Huber, "Terahertz Coherent Control of Optically Dark Paraexcitons in Cu2O," Phys. Rev. Lett. 110,246401 (2008).
    [CrossRef]
  5. N. Krumbholz, T. Hochrein, N. Vieweg, T. Hasek, K. Kretschmer, M. Bastian, M. Mikulics, and M. Koch, "Monitoring Polymeric Compounding Processes Inline with THz Time-Domain Spectroscopy," Polymer Test. 28, 30-35 (2009).
    [CrossRef]
  6. J. F Federici, B. Schulkin, F. Huang, D. Gary, R. Barat, F. Oliveira, and D. Zimdars, "THz imaging and sensing for security applications-explosives, weapons and drugs," Semicond. Sci. Technol. 20, 266-280 (2005).
    [CrossRef]
  7. R. Piesiewicz, T. Kleine-Ostmann, N. Krumbholz, D. Mittleman, M. Koch, J. Schoebel, and T. Kurner, "Short-Range Ultra-Broadband Terahertz Communications: Concepts and Perspectives," IEEE Antennas Propag. Mag. 49, 24-39 (2007).
    [CrossRef]
  8. D. Turchinovich, A. Kammoun, P. Knobloch, T Dobbertin, and M. Koch, "Flexible All-Plastic Mirrors for the THz Range," Appl. Phys. A 74, 291-293 (2002).
    [CrossRef]
  9. N. Krumbholz, K. Gerlach, F. Rutz, M. Koch, R. Piesiewicz, T. Kurner, and D. Mittleman, "Omnidirectional terahertz mirrors: A key element for future terahertz communication systems," Appl. Phys. Lett. 88, 202905 (2006).
    [CrossRef]
  10. T. Bauer, J. S. Kolb, T. Löffler, E. Mohler, H. G. Roskos, and U. C. Pernisz, "Indium-tin-oxide-coated glass as dichroic mirror for far-infrared electromagnetic radiation," J. Appl. Phys. 92, 2210-2212 (2002).
    [CrossRef]
  11. H. Nemec, L. Duvillaret, F. Garet, P. Kuzel, P. Xavier, J. Richard, and D. Rauly, "Thermally tunable filter for terahertz range based on a one-dimensional photonic crystal with a defect," J. Appl. Phys. 96, 4072-4075 (2004).
    [CrossRef]
  12. C. Winnewisser, F. Lewen, and H. Helm, "Transmission characteristics of dichroic filters measured by THz timedomain spectroscopy," Appl. Phys. A 66, 593-598 (1998).
    [CrossRef]
  13. T. Kleine-Ostmann, P. Dawson, K. Pierz, G. Hein, and M. Koch, "Room-temperature operation of an electrically driven terahertz modulator," Appl. Phys. Lett. 84, 3555 (2004).
    [CrossRef]
  14. H.-T. Chen, S. Palit, T. Tyler, C. M. Bingham, J. M. O. Zide, J. F. O’Hara, D. R. Smith, A. C. Gossard, R. D. Averitt, W. J. Padilla, N. M. Jokerst, and A. J. Taylor, "Hybrid metamaterials enable fast electrical modulation of freely propagating terahertz waves," Appl. Phys. Lett. 93, 091117 (2008).
    [CrossRef]
  15. C.-Y. Chen, C.-F. Hsieh, Y.-F. Lin, R.-P. Pan, and C.-L. Pan, "Magnetically tunable room-temperature 2? liquid crystal terahertz phase shifter," Opt. Express 12, 2625-2630 (2004).
    [CrossRef] [PubMed]
  16. H. Zhang, P. Guo, P. Chen, S. Chang, and J. Yuan, "Liquid-crystal-filled photonic crystal for terahertz switch and filter," J. Opt. Soc. Am. B 26, 101-106 (2009).
    [CrossRef]
  17. C.-Y. Chen, C.-L. Pan, C.-F. Hsieh, Y.-F. Lin, and R.-P. Pan, "Liquid-crystal-based terahertz tunable Lyot filter," Appl. Phys. Lett. 88, 101107 (2006).
    [CrossRef]
  18. T.-R. TsaiC.-Y. ChenR.-P. PanC.-L. Pan, and X.-C. Zhang, "Electrically controlled room temperature terahertz phase shifter with liquid crystal," IEEE Microwave Wirel. Compon. Lett. 14, 77- 79 (2004).
    [CrossRef]
  19. R. Wilk, N. Vieweg, T. Hasek, O. Kopschinski, and M. Koch, "THz spectroscopy of liquid crystals from the CB family," J. Infrared Millim. Terahertz Waves (submitted) (2009).
  20. Z. Ghattan, T. Hasek, R. Wilk, M. Shahabadi, and M. Koch, "Sub-terahertz on-off switch based on a twodimensional photonic crystal infiltrated by liquid crystals," Opt. Commun. 281, 4623-4625 (2008).
    [CrossRef]
  21. M. Born and E. Wolf, Principles of Optics, 6th Edition (Pergamon, 1994).
  22. F. Rutz, M. Koch, L. Micele, and G. de Portu, "Ceramic dielectric mirrors for the terahertz range," Appl. Opt. 45, 8070-8073 (2006).
    [CrossRef] [PubMed]
  23. R. Wilk, N. Krumbholz, F. Rutz, D. Mittleman, and M. Koch, "Dielectric reflectors for terahertz frequencies," J. Nanoelectron. Optoelectron. 2, 77-82 (2007).
    [CrossRef]
  24. P. J. Collings, and M. Hird, Introduction to Liquid Crystals Chemistry and Physics (Taylor & Francis, London, 2004).
  25. C.-Y. Chen, T.-R Tsai, C.-L. Pan, and R.-P. Pan, "Room temperature terahertz phase shifter based on magnetically controlled birefringence in liquid crystals," Appl. Phys. Lett. 83, 4497-4499 (2003).
    [CrossRef]

2009 (4)

S. Chatterjee, T. Grunwald, D. Köhler, K. Pierz, D. Golde, M. Kira, and S.W. Koch, "THz measurements of the optical response in a two-dimensional electron gas," Phys. Status Solidi 6, 453-456 (2009).
[CrossRef]

N. Krumbholz, T. Hochrein, N. Vieweg, T. Hasek, K. Kretschmer, M. Bastian, M. Mikulics, and M. Koch, "Monitoring Polymeric Compounding Processes Inline with THz Time-Domain Spectroscopy," Polymer Test. 28, 30-35 (2009).
[CrossRef]

H. Zhang, P. Guo, P. Chen, S. Chang, and J. Yuan, "Liquid-crystal-filled photonic crystal for terahertz switch and filter," J. Opt. Soc. Am. B 26, 101-106 (2009).
[CrossRef]

R. Wilk, N. Vieweg, T. Hasek, O. Kopschinski, and M. Koch, "THz spectroscopy of liquid crystals from the CB family," J. Infrared Millim. Terahertz Waves (submitted) (2009).

2008 (3)

Z. Ghattan, T. Hasek, R. Wilk, M. Shahabadi, and M. Koch, "Sub-terahertz on-off switch based on a twodimensional photonic crystal infiltrated by liquid crystals," Opt. Commun. 281, 4623-4625 (2008).
[CrossRef]

H.-T. Chen, S. Palit, T. Tyler, C. M. Bingham, J. M. O. Zide, J. F. O’Hara, D. R. Smith, A. C. Gossard, R. D. Averitt, W. J. Padilla, N. M. Jokerst, and A. J. Taylor, "Hybrid metamaterials enable fast electrical modulation of freely propagating terahertz waves," Appl. Phys. Lett. 93, 091117 (2008).
[CrossRef]

S. Leinß, T. Kampfrath, K. v. Volkmann, M. Wolf, J. T. Steiner, M. Kira, S. W. Koch, A. Leitenstorfer, and R. Huber, "Terahertz Coherent Control of Optically Dark Paraexcitons in Cu2O," Phys. Rev. Lett. 110,246401 (2008).
[CrossRef]

2007 (2)

R. Piesiewicz, T. Kleine-Ostmann, N. Krumbholz, D. Mittleman, M. Koch, J. Schoebel, and T. Kurner, "Short-Range Ultra-Broadband Terahertz Communications: Concepts and Perspectives," IEEE Antennas Propag. Mag. 49, 24-39 (2007).
[CrossRef]

R. Wilk, N. Krumbholz, F. Rutz, D. Mittleman, and M. Koch, "Dielectric reflectors for terahertz frequencies," J. Nanoelectron. Optoelectron. 2, 77-82 (2007).
[CrossRef]

2006 (4)

F. Rutz, M. Koch, L. Micele, and G. de Portu, "Ceramic dielectric mirrors for the terahertz range," Appl. Opt. 45, 8070-8073 (2006).
[CrossRef] [PubMed]

M. Hangyo, M. Tani, and T. Nagashima, "Terahertz Time-Domain Spectroscopy of Solids: A Review," Int. J. Infrared Millim. Waves 26, 1661-1690 (2006).
[CrossRef]

C.-Y. Chen, C.-L. Pan, C.-F. Hsieh, Y.-F. Lin, and R.-P. Pan, "Liquid-crystal-based terahertz tunable Lyot filter," Appl. Phys. Lett. 88, 101107 (2006).
[CrossRef]

N. Krumbholz, K. Gerlach, F. Rutz, M. Koch, R. Piesiewicz, T. Kurner, and D. Mittleman, "Omnidirectional terahertz mirrors: A key element for future terahertz communication systems," Appl. Phys. Lett. 88, 202905 (2006).
[CrossRef]

2005 (1)

J. F Federici, B. Schulkin, F. Huang, D. Gary, R. Barat, F. Oliveira, and D. Zimdars, "THz imaging and sensing for security applications-explosives, weapons and drugs," Semicond. Sci. Technol. 20, 266-280 (2005).
[CrossRef]

2004 (4)

H. Nemec, L. Duvillaret, F. Garet, P. Kuzel, P. Xavier, J. Richard, and D. Rauly, "Thermally tunable filter for terahertz range based on a one-dimensional photonic crystal with a defect," J. Appl. Phys. 96, 4072-4075 (2004).
[CrossRef]

T.-R. TsaiC.-Y. ChenR.-P. PanC.-L. Pan, and X.-C. Zhang, "Electrically controlled room temperature terahertz phase shifter with liquid crystal," IEEE Microwave Wirel. Compon. Lett. 14, 77- 79 (2004).
[CrossRef]

C.-Y. Chen, C.-F. Hsieh, Y.-F. Lin, R.-P. Pan, and C.-L. Pan, "Magnetically tunable room-temperature 2? liquid crystal terahertz phase shifter," Opt. Express 12, 2625-2630 (2004).
[CrossRef] [PubMed]

T. Kleine-Ostmann, P. Dawson, K. Pierz, G. Hein, and M. Koch, "Room-temperature operation of an electrically driven terahertz modulator," Appl. Phys. Lett. 84, 3555 (2004).
[CrossRef]

2003 (2)

C.-Y. Chen, T.-R Tsai, C.-L. Pan, and R.-P. Pan, "Room temperature terahertz phase shifter based on magnetically controlled birefringence in liquid crystals," Appl. Phys. Lett. 83, 4497-4499 (2003).
[CrossRef]

M.  Walther, B.M. Fischer, and P. U. Jepsen, "Noncovalent intermolecular forces in polycrystalline and amorphous saccharides in the far infrared," Chem. Phys. 288, 261-268 (2003).
[CrossRef]

2002 (2)

D. Turchinovich, A. Kammoun, P. Knobloch, T Dobbertin, and M. Koch, "Flexible All-Plastic Mirrors for the THz Range," Appl. Phys. A 74, 291-293 (2002).
[CrossRef]

T. Bauer, J. S. Kolb, T. Löffler, E. Mohler, H. G. Roskos, and U. C. Pernisz, "Indium-tin-oxide-coated glass as dichroic mirror for far-infrared electromagnetic radiation," J. Appl. Phys. 92, 2210-2212 (2002).
[CrossRef]

1998 (1)

C. Winnewisser, F. Lewen, and H. Helm, "Transmission characteristics of dichroic filters measured by THz timedomain spectroscopy," Appl. Phys. A 66, 593-598 (1998).
[CrossRef]

Averitt, R. D.

H.-T. Chen, S. Palit, T. Tyler, C. M. Bingham, J. M. O. Zide, J. F. O’Hara, D. R. Smith, A. C. Gossard, R. D. Averitt, W. J. Padilla, N. M. Jokerst, and A. J. Taylor, "Hybrid metamaterials enable fast electrical modulation of freely propagating terahertz waves," Appl. Phys. Lett. 93, 091117 (2008).
[CrossRef]

Barat, R.

J. F Federici, B. Schulkin, F. Huang, D. Gary, R. Barat, F. Oliveira, and D. Zimdars, "THz imaging and sensing for security applications-explosives, weapons and drugs," Semicond. Sci. Technol. 20, 266-280 (2005).
[CrossRef]

Bastian, M.

N. Krumbholz, T. Hochrein, N. Vieweg, T. Hasek, K. Kretschmer, M. Bastian, M. Mikulics, and M. Koch, "Monitoring Polymeric Compounding Processes Inline with THz Time-Domain Spectroscopy," Polymer Test. 28, 30-35 (2009).
[CrossRef]

Bauer, T.

T. Bauer, J. S. Kolb, T. Löffler, E. Mohler, H. G. Roskos, and U. C. Pernisz, "Indium-tin-oxide-coated glass as dichroic mirror for far-infrared electromagnetic radiation," J. Appl. Phys. 92, 2210-2212 (2002).
[CrossRef]

Bingham, C. M.

H.-T. Chen, S. Palit, T. Tyler, C. M. Bingham, J. M. O. Zide, J. F. O’Hara, D. R. Smith, A. C. Gossard, R. D. Averitt, W. J. Padilla, N. M. Jokerst, and A. J. Taylor, "Hybrid metamaterials enable fast electrical modulation of freely propagating terahertz waves," Appl. Phys. Lett. 93, 091117 (2008).
[CrossRef]

Chang, S.

Chatterjee, S.

S. Chatterjee, T. Grunwald, D. Köhler, K. Pierz, D. Golde, M. Kira, and S.W. Koch, "THz measurements of the optical response in a two-dimensional electron gas," Phys. Status Solidi 6, 453-456 (2009).
[CrossRef]

Chen, C.-Y.

C.-Y. Chen, C.-L. Pan, C.-F. Hsieh, Y.-F. Lin, and R.-P. Pan, "Liquid-crystal-based terahertz tunable Lyot filter," Appl. Phys. Lett. 88, 101107 (2006).
[CrossRef]

T.-R. TsaiC.-Y. ChenR.-P. PanC.-L. Pan, and X.-C. Zhang, "Electrically controlled room temperature terahertz phase shifter with liquid crystal," IEEE Microwave Wirel. Compon. Lett. 14, 77- 79 (2004).
[CrossRef]

C.-Y. Chen, C.-F. Hsieh, Y.-F. Lin, R.-P. Pan, and C.-L. Pan, "Magnetically tunable room-temperature 2? liquid crystal terahertz phase shifter," Opt. Express 12, 2625-2630 (2004).
[CrossRef] [PubMed]

C.-Y. Chen, T.-R Tsai, C.-L. Pan, and R.-P. Pan, "Room temperature terahertz phase shifter based on magnetically controlled birefringence in liquid crystals," Appl. Phys. Lett. 83, 4497-4499 (2003).
[CrossRef]

Chen, H.-T.

H.-T. Chen, S. Palit, T. Tyler, C. M. Bingham, J. M. O. Zide, J. F. O’Hara, D. R. Smith, A. C. Gossard, R. D. Averitt, W. J. Padilla, N. M. Jokerst, and A. J. Taylor, "Hybrid metamaterials enable fast electrical modulation of freely propagating terahertz waves," Appl. Phys. Lett. 93, 091117 (2008).
[CrossRef]

Chen, P.

Dawson, P.

T. Kleine-Ostmann, P. Dawson, K. Pierz, G. Hein, and M. Koch, "Room-temperature operation of an electrically driven terahertz modulator," Appl. Phys. Lett. 84, 3555 (2004).
[CrossRef]

de Portu, G.

Dobbertin, T

D. Turchinovich, A. Kammoun, P. Knobloch, T Dobbertin, and M. Koch, "Flexible All-Plastic Mirrors for the THz Range," Appl. Phys. A 74, 291-293 (2002).
[CrossRef]

Duvillaret, L.

H. Nemec, L. Duvillaret, F. Garet, P. Kuzel, P. Xavier, J. Richard, and D. Rauly, "Thermally tunable filter for terahertz range based on a one-dimensional photonic crystal with a defect," J. Appl. Phys. 96, 4072-4075 (2004).
[CrossRef]

Federici, J. F

J. F Federici, B. Schulkin, F. Huang, D. Gary, R. Barat, F. Oliveira, and D. Zimdars, "THz imaging and sensing for security applications-explosives, weapons and drugs," Semicond. Sci. Technol. 20, 266-280 (2005).
[CrossRef]

Fischer, B.M.

M.  Walther, B.M. Fischer, and P. U. Jepsen, "Noncovalent intermolecular forces in polycrystalline and amorphous saccharides in the far infrared," Chem. Phys. 288, 261-268 (2003).
[CrossRef]

Garet, F.

H. Nemec, L. Duvillaret, F. Garet, P. Kuzel, P. Xavier, J. Richard, and D. Rauly, "Thermally tunable filter for terahertz range based on a one-dimensional photonic crystal with a defect," J. Appl. Phys. 96, 4072-4075 (2004).
[CrossRef]

Gary, D.

J. F Federici, B. Schulkin, F. Huang, D. Gary, R. Barat, F. Oliveira, and D. Zimdars, "THz imaging and sensing for security applications-explosives, weapons and drugs," Semicond. Sci. Technol. 20, 266-280 (2005).
[CrossRef]

Gerlach, K.

N. Krumbholz, K. Gerlach, F. Rutz, M. Koch, R. Piesiewicz, T. Kurner, and D. Mittleman, "Omnidirectional terahertz mirrors: A key element for future terahertz communication systems," Appl. Phys. Lett. 88, 202905 (2006).
[CrossRef]

Ghattan, Z.

Z. Ghattan, T. Hasek, R. Wilk, M. Shahabadi, and M. Koch, "Sub-terahertz on-off switch based on a twodimensional photonic crystal infiltrated by liquid crystals," Opt. Commun. 281, 4623-4625 (2008).
[CrossRef]

Golde, D.

S. Chatterjee, T. Grunwald, D. Köhler, K. Pierz, D. Golde, M. Kira, and S.W. Koch, "THz measurements of the optical response in a two-dimensional electron gas," Phys. Status Solidi 6, 453-456 (2009).
[CrossRef]

Gossard, A. C.

H.-T. Chen, S. Palit, T. Tyler, C. M. Bingham, J. M. O. Zide, J. F. O’Hara, D. R. Smith, A. C. Gossard, R. D. Averitt, W. J. Padilla, N. M. Jokerst, and A. J. Taylor, "Hybrid metamaterials enable fast electrical modulation of freely propagating terahertz waves," Appl. Phys. Lett. 93, 091117 (2008).
[CrossRef]

Grunwald, T.

S. Chatterjee, T. Grunwald, D. Köhler, K. Pierz, D. Golde, M. Kira, and S.W. Koch, "THz measurements of the optical response in a two-dimensional electron gas," Phys. Status Solidi 6, 453-456 (2009).
[CrossRef]

Guo, P.

Hangyo, M.

M. Hangyo, M. Tani, and T. Nagashima, "Terahertz Time-Domain Spectroscopy of Solids: A Review," Int. J. Infrared Millim. Waves 26, 1661-1690 (2006).
[CrossRef]

Hasek, T.

N. Krumbholz, T. Hochrein, N. Vieweg, T. Hasek, K. Kretschmer, M. Bastian, M. Mikulics, and M. Koch, "Monitoring Polymeric Compounding Processes Inline with THz Time-Domain Spectroscopy," Polymer Test. 28, 30-35 (2009).
[CrossRef]

R. Wilk, N. Vieweg, T. Hasek, O. Kopschinski, and M. Koch, "THz spectroscopy of liquid crystals from the CB family," J. Infrared Millim. Terahertz Waves (submitted) (2009).

Z. Ghattan, T. Hasek, R. Wilk, M. Shahabadi, and M. Koch, "Sub-terahertz on-off switch based on a twodimensional photonic crystal infiltrated by liquid crystals," Opt. Commun. 281, 4623-4625 (2008).
[CrossRef]

Hein, G.

T. Kleine-Ostmann, P. Dawson, K. Pierz, G. Hein, and M. Koch, "Room-temperature operation of an electrically driven terahertz modulator," Appl. Phys. Lett. 84, 3555 (2004).
[CrossRef]

Helm, H.

C. Winnewisser, F. Lewen, and H. Helm, "Transmission characteristics of dichroic filters measured by THz timedomain spectroscopy," Appl. Phys. A 66, 593-598 (1998).
[CrossRef]

Hochrein, T.

N. Krumbholz, T. Hochrein, N. Vieweg, T. Hasek, K. Kretschmer, M. Bastian, M. Mikulics, and M. Koch, "Monitoring Polymeric Compounding Processes Inline with THz Time-Domain Spectroscopy," Polymer Test. 28, 30-35 (2009).
[CrossRef]

Hsieh, C.-F.

C.-Y. Chen, C.-L. Pan, C.-F. Hsieh, Y.-F. Lin, and R.-P. Pan, "Liquid-crystal-based terahertz tunable Lyot filter," Appl. Phys. Lett. 88, 101107 (2006).
[CrossRef]

C.-Y. Chen, C.-F. Hsieh, Y.-F. Lin, R.-P. Pan, and C.-L. Pan, "Magnetically tunable room-temperature 2? liquid crystal terahertz phase shifter," Opt. Express 12, 2625-2630 (2004).
[CrossRef] [PubMed]

Huang, F.

J. F Federici, B. Schulkin, F. Huang, D. Gary, R. Barat, F. Oliveira, and D. Zimdars, "THz imaging and sensing for security applications-explosives, weapons and drugs," Semicond. Sci. Technol. 20, 266-280 (2005).
[CrossRef]

Huber, R.

S. Leinß, T. Kampfrath, K. v. Volkmann, M. Wolf, J. T. Steiner, M. Kira, S. W. Koch, A. Leitenstorfer, and R. Huber, "Terahertz Coherent Control of Optically Dark Paraexcitons in Cu2O," Phys. Rev. Lett. 110,246401 (2008).
[CrossRef]

Jepsen, P. U.

M.  Walther, B.M. Fischer, and P. U. Jepsen, "Noncovalent intermolecular forces in polycrystalline and amorphous saccharides in the far infrared," Chem. Phys. 288, 261-268 (2003).
[CrossRef]

Jokerst, N. M.

H.-T. Chen, S. Palit, T. Tyler, C. M. Bingham, J. M. O. Zide, J. F. O’Hara, D. R. Smith, A. C. Gossard, R. D. Averitt, W. J. Padilla, N. M. Jokerst, and A. J. Taylor, "Hybrid metamaterials enable fast electrical modulation of freely propagating terahertz waves," Appl. Phys. Lett. 93, 091117 (2008).
[CrossRef]

Kammoun, A.

D. Turchinovich, A. Kammoun, P. Knobloch, T Dobbertin, and M. Koch, "Flexible All-Plastic Mirrors for the THz Range," Appl. Phys. A 74, 291-293 (2002).
[CrossRef]

Kampfrath, T.

S. Leinß, T. Kampfrath, K. v. Volkmann, M. Wolf, J. T. Steiner, M. Kira, S. W. Koch, A. Leitenstorfer, and R. Huber, "Terahertz Coherent Control of Optically Dark Paraexcitons in Cu2O," Phys. Rev. Lett. 110,246401 (2008).
[CrossRef]

Kira, M.

S. Chatterjee, T. Grunwald, D. Köhler, K. Pierz, D. Golde, M. Kira, and S.W. Koch, "THz measurements of the optical response in a two-dimensional electron gas," Phys. Status Solidi 6, 453-456 (2009).
[CrossRef]

S. Leinß, T. Kampfrath, K. v. Volkmann, M. Wolf, J. T. Steiner, M. Kira, S. W. Koch, A. Leitenstorfer, and R. Huber, "Terahertz Coherent Control of Optically Dark Paraexcitons in Cu2O," Phys. Rev. Lett. 110,246401 (2008).
[CrossRef]

Kleine-Ostmann, T.

R. Piesiewicz, T. Kleine-Ostmann, N. Krumbholz, D. Mittleman, M. Koch, J. Schoebel, and T. Kurner, "Short-Range Ultra-Broadband Terahertz Communications: Concepts and Perspectives," IEEE Antennas Propag. Mag. 49, 24-39 (2007).
[CrossRef]

T. Kleine-Ostmann, P. Dawson, K. Pierz, G. Hein, and M. Koch, "Room-temperature operation of an electrically driven terahertz modulator," Appl. Phys. Lett. 84, 3555 (2004).
[CrossRef]

Knobloch, P.

D. Turchinovich, A. Kammoun, P. Knobloch, T Dobbertin, and M. Koch, "Flexible All-Plastic Mirrors for the THz Range," Appl. Phys. A 74, 291-293 (2002).
[CrossRef]

Koch, M.

N. Krumbholz, T. Hochrein, N. Vieweg, T. Hasek, K. Kretschmer, M. Bastian, M. Mikulics, and M. Koch, "Monitoring Polymeric Compounding Processes Inline with THz Time-Domain Spectroscopy," Polymer Test. 28, 30-35 (2009).
[CrossRef]

R. Wilk, N. Vieweg, T. Hasek, O. Kopschinski, and M. Koch, "THz spectroscopy of liquid crystals from the CB family," J. Infrared Millim. Terahertz Waves (submitted) (2009).

Z. Ghattan, T. Hasek, R. Wilk, M. Shahabadi, and M. Koch, "Sub-terahertz on-off switch based on a twodimensional photonic crystal infiltrated by liquid crystals," Opt. Commun. 281, 4623-4625 (2008).
[CrossRef]

R. Wilk, N. Krumbholz, F. Rutz, D. Mittleman, and M. Koch, "Dielectric reflectors for terahertz frequencies," J. Nanoelectron. Optoelectron. 2, 77-82 (2007).
[CrossRef]

R. Piesiewicz, T. Kleine-Ostmann, N. Krumbholz, D. Mittleman, M. Koch, J. Schoebel, and T. Kurner, "Short-Range Ultra-Broadband Terahertz Communications: Concepts and Perspectives," IEEE Antennas Propag. Mag. 49, 24-39 (2007).
[CrossRef]

N. Krumbholz, K. Gerlach, F. Rutz, M. Koch, R. Piesiewicz, T. Kurner, and D. Mittleman, "Omnidirectional terahertz mirrors: A key element for future terahertz communication systems," Appl. Phys. Lett. 88, 202905 (2006).
[CrossRef]

F. Rutz, M. Koch, L. Micele, and G. de Portu, "Ceramic dielectric mirrors for the terahertz range," Appl. Opt. 45, 8070-8073 (2006).
[CrossRef] [PubMed]

T. Kleine-Ostmann, P. Dawson, K. Pierz, G. Hein, and M. Koch, "Room-temperature operation of an electrically driven terahertz modulator," Appl. Phys. Lett. 84, 3555 (2004).
[CrossRef]

D. Turchinovich, A. Kammoun, P. Knobloch, T Dobbertin, and M. Koch, "Flexible All-Plastic Mirrors for the THz Range," Appl. Phys. A 74, 291-293 (2002).
[CrossRef]

Koch, S. W.

S. Leinß, T. Kampfrath, K. v. Volkmann, M. Wolf, J. T. Steiner, M. Kira, S. W. Koch, A. Leitenstorfer, and R. Huber, "Terahertz Coherent Control of Optically Dark Paraexcitons in Cu2O," Phys. Rev. Lett. 110,246401 (2008).
[CrossRef]

Koch, S.W.

S. Chatterjee, T. Grunwald, D. Köhler, K. Pierz, D. Golde, M. Kira, and S.W. Koch, "THz measurements of the optical response in a two-dimensional electron gas," Phys. Status Solidi 6, 453-456 (2009).
[CrossRef]

Köhler, D.

S. Chatterjee, T. Grunwald, D. Köhler, K. Pierz, D. Golde, M. Kira, and S.W. Koch, "THz measurements of the optical response in a two-dimensional electron gas," Phys. Status Solidi 6, 453-456 (2009).
[CrossRef]

Kolb, J. S.

T. Bauer, J. S. Kolb, T. Löffler, E. Mohler, H. G. Roskos, and U. C. Pernisz, "Indium-tin-oxide-coated glass as dichroic mirror for far-infrared electromagnetic radiation," J. Appl. Phys. 92, 2210-2212 (2002).
[CrossRef]

Kopschinski, O.

R. Wilk, N. Vieweg, T. Hasek, O. Kopschinski, and M. Koch, "THz spectroscopy of liquid crystals from the CB family," J. Infrared Millim. Terahertz Waves (submitted) (2009).

Kretschmer, K.

N. Krumbholz, T. Hochrein, N. Vieweg, T. Hasek, K. Kretschmer, M. Bastian, M. Mikulics, and M. Koch, "Monitoring Polymeric Compounding Processes Inline with THz Time-Domain Spectroscopy," Polymer Test. 28, 30-35 (2009).
[CrossRef]

Krumbholz, N.

N. Krumbholz, T. Hochrein, N. Vieweg, T. Hasek, K. Kretschmer, M. Bastian, M. Mikulics, and M. Koch, "Monitoring Polymeric Compounding Processes Inline with THz Time-Domain Spectroscopy," Polymer Test. 28, 30-35 (2009).
[CrossRef]

R. Piesiewicz, T. Kleine-Ostmann, N. Krumbholz, D. Mittleman, M. Koch, J. Schoebel, and T. Kurner, "Short-Range Ultra-Broadband Terahertz Communications: Concepts and Perspectives," IEEE Antennas Propag. Mag. 49, 24-39 (2007).
[CrossRef]

R. Wilk, N. Krumbholz, F. Rutz, D. Mittleman, and M. Koch, "Dielectric reflectors for terahertz frequencies," J. Nanoelectron. Optoelectron. 2, 77-82 (2007).
[CrossRef]

N. Krumbholz, K. Gerlach, F. Rutz, M. Koch, R. Piesiewicz, T. Kurner, and D. Mittleman, "Omnidirectional terahertz mirrors: A key element for future terahertz communication systems," Appl. Phys. Lett. 88, 202905 (2006).
[CrossRef]

Kurner, T.

R. Piesiewicz, T. Kleine-Ostmann, N. Krumbholz, D. Mittleman, M. Koch, J. Schoebel, and T. Kurner, "Short-Range Ultra-Broadband Terahertz Communications: Concepts and Perspectives," IEEE Antennas Propag. Mag. 49, 24-39 (2007).
[CrossRef]

N. Krumbholz, K. Gerlach, F. Rutz, M. Koch, R. Piesiewicz, T. Kurner, and D. Mittleman, "Omnidirectional terahertz mirrors: A key element for future terahertz communication systems," Appl. Phys. Lett. 88, 202905 (2006).
[CrossRef]

Kuzel, P.

H. Nemec, L. Duvillaret, F. Garet, P. Kuzel, P. Xavier, J. Richard, and D. Rauly, "Thermally tunable filter for terahertz range based on a one-dimensional photonic crystal with a defect," J. Appl. Phys. 96, 4072-4075 (2004).
[CrossRef]

Leinß, S.

S. Leinß, T. Kampfrath, K. v. Volkmann, M. Wolf, J. T. Steiner, M. Kira, S. W. Koch, A. Leitenstorfer, and R. Huber, "Terahertz Coherent Control of Optically Dark Paraexcitons in Cu2O," Phys. Rev. Lett. 110,246401 (2008).
[CrossRef]

Leitenstorfer, A.

S. Leinß, T. Kampfrath, K. v. Volkmann, M. Wolf, J. T. Steiner, M. Kira, S. W. Koch, A. Leitenstorfer, and R. Huber, "Terahertz Coherent Control of Optically Dark Paraexcitons in Cu2O," Phys. Rev. Lett. 110,246401 (2008).
[CrossRef]

Lewen, F.

C. Winnewisser, F. Lewen, and H. Helm, "Transmission characteristics of dichroic filters measured by THz timedomain spectroscopy," Appl. Phys. A 66, 593-598 (1998).
[CrossRef]

Lin, Y.-F.

C.-Y. Chen, C.-L. Pan, C.-F. Hsieh, Y.-F. Lin, and R.-P. Pan, "Liquid-crystal-based terahertz tunable Lyot filter," Appl. Phys. Lett. 88, 101107 (2006).
[CrossRef]

C.-Y. Chen, C.-F. Hsieh, Y.-F. Lin, R.-P. Pan, and C.-L. Pan, "Magnetically tunable room-temperature 2? liquid crystal terahertz phase shifter," Opt. Express 12, 2625-2630 (2004).
[CrossRef] [PubMed]

Löffler, T.

T. Bauer, J. S. Kolb, T. Löffler, E. Mohler, H. G. Roskos, and U. C. Pernisz, "Indium-tin-oxide-coated glass as dichroic mirror for far-infrared electromagnetic radiation," J. Appl. Phys. 92, 2210-2212 (2002).
[CrossRef]

Micele, L.

Mikulics, M.

N. Krumbholz, T. Hochrein, N. Vieweg, T. Hasek, K. Kretschmer, M. Bastian, M. Mikulics, and M. Koch, "Monitoring Polymeric Compounding Processes Inline with THz Time-Domain Spectroscopy," Polymer Test. 28, 30-35 (2009).
[CrossRef]

Mittleman, D.

R. Piesiewicz, T. Kleine-Ostmann, N. Krumbholz, D. Mittleman, M. Koch, J. Schoebel, and T. Kurner, "Short-Range Ultra-Broadband Terahertz Communications: Concepts and Perspectives," IEEE Antennas Propag. Mag. 49, 24-39 (2007).
[CrossRef]

R. Wilk, N. Krumbholz, F. Rutz, D. Mittleman, and M. Koch, "Dielectric reflectors for terahertz frequencies," J. Nanoelectron. Optoelectron. 2, 77-82 (2007).
[CrossRef]

N. Krumbholz, K. Gerlach, F. Rutz, M. Koch, R. Piesiewicz, T. Kurner, and D. Mittleman, "Omnidirectional terahertz mirrors: A key element for future terahertz communication systems," Appl. Phys. Lett. 88, 202905 (2006).
[CrossRef]

Mohler, E.

T. Bauer, J. S. Kolb, T. Löffler, E. Mohler, H. G. Roskos, and U. C. Pernisz, "Indium-tin-oxide-coated glass as dichroic mirror for far-infrared electromagnetic radiation," J. Appl. Phys. 92, 2210-2212 (2002).
[CrossRef]

Nagashima, T.

M. Hangyo, M. Tani, and T. Nagashima, "Terahertz Time-Domain Spectroscopy of Solids: A Review," Int. J. Infrared Millim. Waves 26, 1661-1690 (2006).
[CrossRef]

Nemec, H.

H. Nemec, L. Duvillaret, F. Garet, P. Kuzel, P. Xavier, J. Richard, and D. Rauly, "Thermally tunable filter for terahertz range based on a one-dimensional photonic crystal with a defect," J. Appl. Phys. 96, 4072-4075 (2004).
[CrossRef]

O’Hara, J. F.

H.-T. Chen, S. Palit, T. Tyler, C. M. Bingham, J. M. O. Zide, J. F. O’Hara, D. R. Smith, A. C. Gossard, R. D. Averitt, W. J. Padilla, N. M. Jokerst, and A. J. Taylor, "Hybrid metamaterials enable fast electrical modulation of freely propagating terahertz waves," Appl. Phys. Lett. 93, 091117 (2008).
[CrossRef]

Oliveira, F.

J. F Federici, B. Schulkin, F. Huang, D. Gary, R. Barat, F. Oliveira, and D. Zimdars, "THz imaging and sensing for security applications-explosives, weapons and drugs," Semicond. Sci. Technol. 20, 266-280 (2005).
[CrossRef]

Padilla, W. J.

H.-T. Chen, S. Palit, T. Tyler, C. M. Bingham, J. M. O. Zide, J. F. O’Hara, D. R. Smith, A. C. Gossard, R. D. Averitt, W. J. Padilla, N. M. Jokerst, and A. J. Taylor, "Hybrid metamaterials enable fast electrical modulation of freely propagating terahertz waves," Appl. Phys. Lett. 93, 091117 (2008).
[CrossRef]

Palit, S.

H.-T. Chen, S. Palit, T. Tyler, C. M. Bingham, J. M. O. Zide, J. F. O’Hara, D. R. Smith, A. C. Gossard, R. D. Averitt, W. J. Padilla, N. M. Jokerst, and A. J. Taylor, "Hybrid metamaterials enable fast electrical modulation of freely propagating terahertz waves," Appl. Phys. Lett. 93, 091117 (2008).
[CrossRef]

Pan, C.-L.

C.-Y. Chen, C.-L. Pan, C.-F. Hsieh, Y.-F. Lin, and R.-P. Pan, "Liquid-crystal-based terahertz tunable Lyot filter," Appl. Phys. Lett. 88, 101107 (2006).
[CrossRef]

T.-R. TsaiC.-Y. ChenR.-P. PanC.-L. Pan, and X.-C. Zhang, "Electrically controlled room temperature terahertz phase shifter with liquid crystal," IEEE Microwave Wirel. Compon. Lett. 14, 77- 79 (2004).
[CrossRef]

C.-Y. Chen, C.-F. Hsieh, Y.-F. Lin, R.-P. Pan, and C.-L. Pan, "Magnetically tunable room-temperature 2? liquid crystal terahertz phase shifter," Opt. Express 12, 2625-2630 (2004).
[CrossRef] [PubMed]

C.-Y. Chen, T.-R Tsai, C.-L. Pan, and R.-P. Pan, "Room temperature terahertz phase shifter based on magnetically controlled birefringence in liquid crystals," Appl. Phys. Lett. 83, 4497-4499 (2003).
[CrossRef]

Pan, R.-P.

C.-Y. Chen, C.-L. Pan, C.-F. Hsieh, Y.-F. Lin, and R.-P. Pan, "Liquid-crystal-based terahertz tunable Lyot filter," Appl. Phys. Lett. 88, 101107 (2006).
[CrossRef]

C.-Y. Chen, C.-F. Hsieh, Y.-F. Lin, R.-P. Pan, and C.-L. Pan, "Magnetically tunable room-temperature 2? liquid crystal terahertz phase shifter," Opt. Express 12, 2625-2630 (2004).
[CrossRef] [PubMed]

T.-R. TsaiC.-Y. ChenR.-P. PanC.-L. Pan, and X.-C. Zhang, "Electrically controlled room temperature terahertz phase shifter with liquid crystal," IEEE Microwave Wirel. Compon. Lett. 14, 77- 79 (2004).
[CrossRef]

C.-Y. Chen, T.-R Tsai, C.-L. Pan, and R.-P. Pan, "Room temperature terahertz phase shifter based on magnetically controlled birefringence in liquid crystals," Appl. Phys. Lett. 83, 4497-4499 (2003).
[CrossRef]

Pernisz, U. C.

T. Bauer, J. S. Kolb, T. Löffler, E. Mohler, H. G. Roskos, and U. C. Pernisz, "Indium-tin-oxide-coated glass as dichroic mirror for far-infrared electromagnetic radiation," J. Appl. Phys. 92, 2210-2212 (2002).
[CrossRef]

Pierz, K.

S. Chatterjee, T. Grunwald, D. Köhler, K. Pierz, D. Golde, M. Kira, and S.W. Koch, "THz measurements of the optical response in a two-dimensional electron gas," Phys. Status Solidi 6, 453-456 (2009).
[CrossRef]

T. Kleine-Ostmann, P. Dawson, K. Pierz, G. Hein, and M. Koch, "Room-temperature operation of an electrically driven terahertz modulator," Appl. Phys. Lett. 84, 3555 (2004).
[CrossRef]

Piesiewicz, R.

R. Piesiewicz, T. Kleine-Ostmann, N. Krumbholz, D. Mittleman, M. Koch, J. Schoebel, and T. Kurner, "Short-Range Ultra-Broadband Terahertz Communications: Concepts and Perspectives," IEEE Antennas Propag. Mag. 49, 24-39 (2007).
[CrossRef]

N. Krumbholz, K. Gerlach, F. Rutz, M. Koch, R. Piesiewicz, T. Kurner, and D. Mittleman, "Omnidirectional terahertz mirrors: A key element for future terahertz communication systems," Appl. Phys. Lett. 88, 202905 (2006).
[CrossRef]

Rauly, D.

H. Nemec, L. Duvillaret, F. Garet, P. Kuzel, P. Xavier, J. Richard, and D. Rauly, "Thermally tunable filter for terahertz range based on a one-dimensional photonic crystal with a defect," J. Appl. Phys. 96, 4072-4075 (2004).
[CrossRef]

Richard, J.

H. Nemec, L. Duvillaret, F. Garet, P. Kuzel, P. Xavier, J. Richard, and D. Rauly, "Thermally tunable filter for terahertz range based on a one-dimensional photonic crystal with a defect," J. Appl. Phys. 96, 4072-4075 (2004).
[CrossRef]

Roskos, H. G.

T. Bauer, J. S. Kolb, T. Löffler, E. Mohler, H. G. Roskos, and U. C. Pernisz, "Indium-tin-oxide-coated glass as dichroic mirror for far-infrared electromagnetic radiation," J. Appl. Phys. 92, 2210-2212 (2002).
[CrossRef]

Rutz, F.

R. Wilk, N. Krumbholz, F. Rutz, D. Mittleman, and M. Koch, "Dielectric reflectors for terahertz frequencies," J. Nanoelectron. Optoelectron. 2, 77-82 (2007).
[CrossRef]

F. Rutz, M. Koch, L. Micele, and G. de Portu, "Ceramic dielectric mirrors for the terahertz range," Appl. Opt. 45, 8070-8073 (2006).
[CrossRef] [PubMed]

N. Krumbholz, K. Gerlach, F. Rutz, M. Koch, R. Piesiewicz, T. Kurner, and D. Mittleman, "Omnidirectional terahertz mirrors: A key element for future terahertz communication systems," Appl. Phys. Lett. 88, 202905 (2006).
[CrossRef]

Schoebel, J.

R. Piesiewicz, T. Kleine-Ostmann, N. Krumbholz, D. Mittleman, M. Koch, J. Schoebel, and T. Kurner, "Short-Range Ultra-Broadband Terahertz Communications: Concepts and Perspectives," IEEE Antennas Propag. Mag. 49, 24-39 (2007).
[CrossRef]

Schulkin, B.

J. F Federici, B. Schulkin, F. Huang, D. Gary, R. Barat, F. Oliveira, and D. Zimdars, "THz imaging and sensing for security applications-explosives, weapons and drugs," Semicond. Sci. Technol. 20, 266-280 (2005).
[CrossRef]

Shahabadi, M.

Z. Ghattan, T. Hasek, R. Wilk, M. Shahabadi, and M. Koch, "Sub-terahertz on-off switch based on a twodimensional photonic crystal infiltrated by liquid crystals," Opt. Commun. 281, 4623-4625 (2008).
[CrossRef]

Smith, D. R.

H.-T. Chen, S. Palit, T. Tyler, C. M. Bingham, J. M. O. Zide, J. F. O’Hara, D. R. Smith, A. C. Gossard, R. D. Averitt, W. J. Padilla, N. M. Jokerst, and A. J. Taylor, "Hybrid metamaterials enable fast electrical modulation of freely propagating terahertz waves," Appl. Phys. Lett. 93, 091117 (2008).
[CrossRef]

Steiner, J. T.

S. Leinß, T. Kampfrath, K. v. Volkmann, M. Wolf, J. T. Steiner, M. Kira, S. W. Koch, A. Leitenstorfer, and R. Huber, "Terahertz Coherent Control of Optically Dark Paraexcitons in Cu2O," Phys. Rev. Lett. 110,246401 (2008).
[CrossRef]

Tani, M.

M. Hangyo, M. Tani, and T. Nagashima, "Terahertz Time-Domain Spectroscopy of Solids: A Review," Int. J. Infrared Millim. Waves 26, 1661-1690 (2006).
[CrossRef]

Taylor, A. J.

H.-T. Chen, S. Palit, T. Tyler, C. M. Bingham, J. M. O. Zide, J. F. O’Hara, D. R. Smith, A. C. Gossard, R. D. Averitt, W. J. Padilla, N. M. Jokerst, and A. J. Taylor, "Hybrid metamaterials enable fast electrical modulation of freely propagating terahertz waves," Appl. Phys. Lett. 93, 091117 (2008).
[CrossRef]

Tsai, T.-R

C.-Y. Chen, T.-R Tsai, C.-L. Pan, and R.-P. Pan, "Room temperature terahertz phase shifter based on magnetically controlled birefringence in liquid crystals," Appl. Phys. Lett. 83, 4497-4499 (2003).
[CrossRef]

Tsai, T.-R.

T.-R. TsaiC.-Y. ChenR.-P. PanC.-L. Pan, and X.-C. Zhang, "Electrically controlled room temperature terahertz phase shifter with liquid crystal," IEEE Microwave Wirel. Compon. Lett. 14, 77- 79 (2004).
[CrossRef]

Turchinovich, D.

D. Turchinovich, A. Kammoun, P. Knobloch, T Dobbertin, and M. Koch, "Flexible All-Plastic Mirrors for the THz Range," Appl. Phys. A 74, 291-293 (2002).
[CrossRef]

Tyler, T.

H.-T. Chen, S. Palit, T. Tyler, C. M. Bingham, J. M. O. Zide, J. F. O’Hara, D. R. Smith, A. C. Gossard, R. D. Averitt, W. J. Padilla, N. M. Jokerst, and A. J. Taylor, "Hybrid metamaterials enable fast electrical modulation of freely propagating terahertz waves," Appl. Phys. Lett. 93, 091117 (2008).
[CrossRef]

Vieweg, N.

R. Wilk, N. Vieweg, T. Hasek, O. Kopschinski, and M. Koch, "THz spectroscopy of liquid crystals from the CB family," J. Infrared Millim. Terahertz Waves (submitted) (2009).

N. Krumbholz, T. Hochrein, N. Vieweg, T. Hasek, K. Kretschmer, M. Bastian, M. Mikulics, and M. Koch, "Monitoring Polymeric Compounding Processes Inline with THz Time-Domain Spectroscopy," Polymer Test. 28, 30-35 (2009).
[CrossRef]

Volkmann, K. v.

S. Leinß, T. Kampfrath, K. v. Volkmann, M. Wolf, J. T. Steiner, M. Kira, S. W. Koch, A. Leitenstorfer, and R. Huber, "Terahertz Coherent Control of Optically Dark Paraexcitons in Cu2O," Phys. Rev. Lett. 110,246401 (2008).
[CrossRef]

Walther, M.

M.  Walther, B.M. Fischer, and P. U. Jepsen, "Noncovalent intermolecular forces in polycrystalline and amorphous saccharides in the far infrared," Chem. Phys. 288, 261-268 (2003).
[CrossRef]

Wilk, R.

R. Wilk, N. Vieweg, T. Hasek, O. Kopschinski, and M. Koch, "THz spectroscopy of liquid crystals from the CB family," J. Infrared Millim. Terahertz Waves (submitted) (2009).

Z. Ghattan, T. Hasek, R. Wilk, M. Shahabadi, and M. Koch, "Sub-terahertz on-off switch based on a twodimensional photonic crystal infiltrated by liquid crystals," Opt. Commun. 281, 4623-4625 (2008).
[CrossRef]

R. Wilk, N. Krumbholz, F. Rutz, D. Mittleman, and M. Koch, "Dielectric reflectors for terahertz frequencies," J. Nanoelectron. Optoelectron. 2, 77-82 (2007).
[CrossRef]

Winnewisser, C.

C. Winnewisser, F. Lewen, and H. Helm, "Transmission characteristics of dichroic filters measured by THz timedomain spectroscopy," Appl. Phys. A 66, 593-598 (1998).
[CrossRef]

Wolf, M.

S. Leinß, T. Kampfrath, K. v. Volkmann, M. Wolf, J. T. Steiner, M. Kira, S. W. Koch, A. Leitenstorfer, and R. Huber, "Terahertz Coherent Control of Optically Dark Paraexcitons in Cu2O," Phys. Rev. Lett. 110,246401 (2008).
[CrossRef]

Xavier, P.

H. Nemec, L. Duvillaret, F. Garet, P. Kuzel, P. Xavier, J. Richard, and D. Rauly, "Thermally tunable filter for terahertz range based on a one-dimensional photonic crystal with a defect," J. Appl. Phys. 96, 4072-4075 (2004).
[CrossRef]

Yuan, J.

Zhang, H.

Zhang, X.-C.

T.-R. TsaiC.-Y. ChenR.-P. PanC.-L. Pan, and X.-C. Zhang, "Electrically controlled room temperature terahertz phase shifter with liquid crystal," IEEE Microwave Wirel. Compon. Lett. 14, 77- 79 (2004).
[CrossRef]

Zide, J. M. O.

H.-T. Chen, S. Palit, T. Tyler, C. M. Bingham, J. M. O. Zide, J. F. O’Hara, D. R. Smith, A. C. Gossard, R. D. Averitt, W. J. Padilla, N. M. Jokerst, and A. J. Taylor, "Hybrid metamaterials enable fast electrical modulation of freely propagating terahertz waves," Appl. Phys. Lett. 93, 091117 (2008).
[CrossRef]

Zimdars, D.

J. F Federici, B. Schulkin, F. Huang, D. Gary, R. Barat, F. Oliveira, and D. Zimdars, "THz imaging and sensing for security applications-explosives, weapons and drugs," Semicond. Sci. Technol. 20, 266-280 (2005).
[CrossRef]

Appl. Opt. (1)

Appl. Phys. A (2)

D. Turchinovich, A. Kammoun, P. Knobloch, T Dobbertin, and M. Koch, "Flexible All-Plastic Mirrors for the THz Range," Appl. Phys. A 74, 291-293 (2002).
[CrossRef]

C. Winnewisser, F. Lewen, and H. Helm, "Transmission characteristics of dichroic filters measured by THz timedomain spectroscopy," Appl. Phys. A 66, 593-598 (1998).
[CrossRef]

Appl. Phys. Lett. (5)

T. Kleine-Ostmann, P. Dawson, K. Pierz, G. Hein, and M. Koch, "Room-temperature operation of an electrically driven terahertz modulator," Appl. Phys. Lett. 84, 3555 (2004).
[CrossRef]

H.-T. Chen, S. Palit, T. Tyler, C. M. Bingham, J. M. O. Zide, J. F. O’Hara, D. R. Smith, A. C. Gossard, R. D. Averitt, W. J. Padilla, N. M. Jokerst, and A. J. Taylor, "Hybrid metamaterials enable fast electrical modulation of freely propagating terahertz waves," Appl. Phys. Lett. 93, 091117 (2008).
[CrossRef]

C.-Y. Chen, C.-L. Pan, C.-F. Hsieh, Y.-F. Lin, and R.-P. Pan, "Liquid-crystal-based terahertz tunable Lyot filter," Appl. Phys. Lett. 88, 101107 (2006).
[CrossRef]

N. Krumbholz, K. Gerlach, F. Rutz, M. Koch, R. Piesiewicz, T. Kurner, and D. Mittleman, "Omnidirectional terahertz mirrors: A key element for future terahertz communication systems," Appl. Phys. Lett. 88, 202905 (2006).
[CrossRef]

C.-Y. Chen, T.-R Tsai, C.-L. Pan, and R.-P. Pan, "Room temperature terahertz phase shifter based on magnetically controlled birefringence in liquid crystals," Appl. Phys. Lett. 83, 4497-4499 (2003).
[CrossRef]

Chem. Phys. (1)

M.  Walther, B.M. Fischer, and P. U. Jepsen, "Noncovalent intermolecular forces in polycrystalline and amorphous saccharides in the far infrared," Chem. Phys. 288, 261-268 (2003).
[CrossRef]

IEEE Antennas Propag. Mag. (1)

R. Piesiewicz, T. Kleine-Ostmann, N. Krumbholz, D. Mittleman, M. Koch, J. Schoebel, and T. Kurner, "Short-Range Ultra-Broadband Terahertz Communications: Concepts and Perspectives," IEEE Antennas Propag. Mag. 49, 24-39 (2007).
[CrossRef]

IEEE Microwave Wirel. Compon. Lett. (1)

T.-R. TsaiC.-Y. ChenR.-P. PanC.-L. Pan, and X.-C. Zhang, "Electrically controlled room temperature terahertz phase shifter with liquid crystal," IEEE Microwave Wirel. Compon. Lett. 14, 77- 79 (2004).
[CrossRef]

Int. J. Infrared Millim. Waves (1)

M. Hangyo, M. Tani, and T. Nagashima, "Terahertz Time-Domain Spectroscopy of Solids: A Review," Int. J. Infrared Millim. Waves 26, 1661-1690 (2006).
[CrossRef]

J. Appl. Phys. (2)

T. Bauer, J. S. Kolb, T. Löffler, E. Mohler, H. G. Roskos, and U. C. Pernisz, "Indium-tin-oxide-coated glass as dichroic mirror for far-infrared electromagnetic radiation," J. Appl. Phys. 92, 2210-2212 (2002).
[CrossRef]

H. Nemec, L. Duvillaret, F. Garet, P. Kuzel, P. Xavier, J. Richard, and D. Rauly, "Thermally tunable filter for terahertz range based on a one-dimensional photonic crystal with a defect," J. Appl. Phys. 96, 4072-4075 (2004).
[CrossRef]

J. Infrared Millim. Terahertz Waves (1)

R. Wilk, N. Vieweg, T. Hasek, O. Kopschinski, and M. Koch, "THz spectroscopy of liquid crystals from the CB family," J. Infrared Millim. Terahertz Waves (submitted) (2009).

J. Nanoelectron. Optoelectron. (1)

R. Wilk, N. Krumbholz, F. Rutz, D. Mittleman, and M. Koch, "Dielectric reflectors for terahertz frequencies," J. Nanoelectron. Optoelectron. 2, 77-82 (2007).
[CrossRef]

J. Opt. Soc. Am. B (1)

Opt. Commun. (1)

Z. Ghattan, T. Hasek, R. Wilk, M. Shahabadi, and M. Koch, "Sub-terahertz on-off switch based on a twodimensional photonic crystal infiltrated by liquid crystals," Opt. Commun. 281, 4623-4625 (2008).
[CrossRef]

Opt. Express (1)

Phys. Rev. Lett. (1)

S. Leinß, T. Kampfrath, K. v. Volkmann, M. Wolf, J. T. Steiner, M. Kira, S. W. Koch, A. Leitenstorfer, and R. Huber, "Terahertz Coherent Control of Optically Dark Paraexcitons in Cu2O," Phys. Rev. Lett. 110,246401 (2008).
[CrossRef]

Phys. Status Solidi (1)

S. Chatterjee, T. Grunwald, D. Köhler, K. Pierz, D. Golde, M. Kira, and S.W. Koch, "THz measurements of the optical response in a two-dimensional electron gas," Phys. Status Solidi 6, 453-456 (2009).
[CrossRef]

Polymer Test. (1)

N. Krumbholz, T. Hochrein, N. Vieweg, T. Hasek, K. Kretschmer, M. Bastian, M. Mikulics, and M. Koch, "Monitoring Polymeric Compounding Processes Inline with THz Time-Domain Spectroscopy," Polymer Test. 28, 30-35 (2009).
[CrossRef]

Semicond. Sci. Technol. (1)

J. F Federici, B. Schulkin, F. Huang, D. Gary, R. Barat, F. Oliveira, and D. Zimdars, "THz imaging and sensing for security applications-explosives, weapons and drugs," Semicond. Sci. Technol. 20, 266-280 (2005).
[CrossRef]

Other (2)

M. Born and E. Wolf, Principles of Optics, 6th Edition (Pergamon, 1994).

P. J. Collings, and M. Hird, Introduction to Liquid Crystals Chemistry and Physics (Taylor & Francis, London, 2004).

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Figures (4)

Fig. 1.
Fig. 1.

Scheme (a) and photo (b) of a LC-based Bragg-structure.

Fig. 2.
Fig. 2.

Simulated power reflection coefficient (a) and transmission coefficient (b) of the switchable dielectric mirror in on-state (solid line) and off-state (dashed line).

Fig. 3.
Fig. 3.

Simulated electric field distribution in the cell. The arrow lengths are proportional to the strength of electric field.

Fig. 4.
Fig. 4.

Experimentally measured (dashed line) and simulated (solid line) relative E-field transmission of the dielectric mirror in on-state (a) and off-state (b).

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