Abstract

We demonstrate images of free induction decay (FID) signals from a grain of tyrosine in the near-field of the THz frequency region. By combining electro-optic sampling with a charge-coupled-device (CCD) camera, our near-field THz microscope allows us to visualize the electric field blinking with the FID signal with spatial resolution of better than 70 μm. The oscillating frequency of the FID signal centered at ~1 THz corresponds to the vibrational mode of the tyrosine crystal. These results confirm that the THz near-field microscope can take spectroscopic images with subwavelength spatial resolution (~λ/4).

© 2010 OSA

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  1. B. B. Hu and M. C. Nuss, “Imaging with terahertz waves,” Opt. Lett. 20(16), 1716–1718 (1995).
    [CrossRef] [PubMed]
  2. D. M. Mittleman, R. H. Jacobsen, and M. C. Nuss, “T-ray imaging,” IEEE J. Sel. Top. Quantum Electron. 2(3), 679–692 (1996).
    [CrossRef]
  3. W. L. Chan, J. Deibel, and D. M. Mittleman, “Imaging with terahertz radiation,” Rep. Prog. Phys. 70(8), 1325–1379 (2007).
    [CrossRef]
  4. S. Hunsche, M. Koch, I. Brener, and M. C. Nuss, “THz near-field imaging,” Opt. Commun. 150(1-6), 22–26 (1998).
    [CrossRef]
  5. N. C. J. van der Valk and P. C. M. Planken, “Electro-optic detection of subwavelength terahertz spot sizes in the near field of a metal tip,” Appl. Phys. Lett. 81(9), 1558–1560 (2002).
    [CrossRef]
  6. H.-T. Chen, R. Kersting, and G. C. Cho, “Terahertz imaging with nanometer resolution,” Appl. Phys. Lett. 83(15), 3009–3011 (2003).
    [CrossRef]
  7. A. J. Huber, F. Keilmann, J. Wittborn, J. Aizpurua, and R. Hillenbrand, “Terahertz near-field nanoscopy of mobile carriers in single semiconductor nanodevices,” Nano Lett. 8(11), 3766–3770 (2008).
    [CrossRef] [PubMed]
  8. Q. Chen, Z. Jiang, G. X. Xu, and X.-C. Zhang, “Near-field terahertz imaging with a dynamic aperture,” Opt. Lett. 25(15), 1122–1124 (2000).
    [CrossRef]
  9. Z. Jiang, X. G. Xu, and X.-C. Zhang, “Improvement of terahertz imaging with a dynamic subtraction technique,” Appl. Opt. 39(17), 2982–2987 (2000).
    [CrossRef]
  10. M. A. Seo, A. J. L. Adam, J. H. Kang, J. W. Lee, S. C. Jeoung, Q. H. Park, P. C. M. Planken, and D. S. Kim, “Fourier-transform terahertz near-field imaging of one-dimensional slit arrays: mapping of electric-field-, magnetic-field-, and Poynting vectors,” Opt. Express 15(19), 11781–11789 (2007).
    [CrossRef] [PubMed]
  11. A. J. L. Adam, J. M. Brok, M. A. Seo, K. J. Ahn, D. S. Kim, J. H. Kang, Q. H. Park, M. Nagel, and P. C. M. Planken, “Advanced terahertz electric near-field measurements at sub-wavelength diameter metallic apertures,” Opt. Express 16(10), 7407–7417 (2008).
    [CrossRef] [PubMed]
  12. X. Wang, Y. Cui, D. Hu, W. Sun, J. Ye, and Y. Zhang, “Terahertz quasi-near-field real-time imaging,” Opt. Commun. 282(24), 4683–4687 (2009).
    [CrossRef]
  13. A. Bitzer, A. Ortner, and M. Walther, “Terahertz near-field microscopy with subwavelength spatial resolution based on photoconductive antennas,” Appl. Opt. 49(19), E1–E6 (2010).
    [CrossRef] [PubMed]
  14. M. Brucherseifer, M. Nagel, P. H. Bolivar, H. Kurz, A. Bosserhoff, and R. Büttner, “Label-free probing of the binding state of DNA by time-domain terahertz sensing,” Appl. Phys. Lett. 77(24), 4049–4051 (2000).
    [CrossRef]
  15. P. Haring Bolivar, M. Brucherseifer, M. Nagel, H. Kurz, A. Bosserhoff, and R. Büttner, “Label-free probing of genes by time-domain terahertz sensing,” Phys. Med. Biol. 47(21), 3815–3821 (2002).
    [CrossRef] [PubMed]
  16. J. Hebling, G. Almási, I. Z. Kozma, and J. Kuhl, “Velocity matching by pulse front tilting for large area THz-pulse generation,” Opt. Express 10(21), 1161–1166 (2002).
    [PubMed]
  17. M. Jewariya, M. Nagai, and K. Tanaka, “Enhancement of terahertz wave generation by cascaded χ(2) processes in LiNbO3,” J. Opt. Soc. Am. B 26(9), A101–A106 (2009).
    [CrossRef]
  18. R. Chakkittakandy, J. A. W. M. Corver, and P. C. M. Planken, “Quasi-near field terahertz generation and detection,” Opt. Express 16(17), 12794–12805 (2008).
    [PubMed]
  19. Q. Wu, T. D. Hewitt, and X.-C. Zhang, “Two-dimensional electro-optic imaging of THz beams,” Appl. Phys. Lett. 69(8), 1026–1028 (1996).
    [CrossRef]
  20. Z. Jiang, F. G. Sun, Q. Chen, and X.-C. Zhang, “Electro-optic sampling near zero optical transmission point,” Appl. Phys. Lett. 74(9), 1191–1193 (1999).
    [CrossRef]
  21. T. Hattori and M. Sakamoto, “Deformation corrected real-time terahertz imaging,” Appl. Phys. Lett. 90(26), 261106 (2007).
    [CrossRef]
  22. D. Grischkowsky, S. Keiding, M. van Exter, and Ch. Fattinger, “Far-infrared time-domain spectroscopy with terahertz beams of dielectrics and semiconductors,” J. Opt. Soc. Am. B 7(10), 2006–2015 (1990).
    [CrossRef]

2010 (1)

2009 (2)

M. Jewariya, M. Nagai, and K. Tanaka, “Enhancement of terahertz wave generation by cascaded χ(2) processes in LiNbO3,” J. Opt. Soc. Am. B 26(9), A101–A106 (2009).
[CrossRef]

X. Wang, Y. Cui, D. Hu, W. Sun, J. Ye, and Y. Zhang, “Terahertz quasi-near-field real-time imaging,” Opt. Commun. 282(24), 4683–4687 (2009).
[CrossRef]

2008 (3)

2007 (3)

W. L. Chan, J. Deibel, and D. M. Mittleman, “Imaging with terahertz radiation,” Rep. Prog. Phys. 70(8), 1325–1379 (2007).
[CrossRef]

M. A. Seo, A. J. L. Adam, J. H. Kang, J. W. Lee, S. C. Jeoung, Q. H. Park, P. C. M. Planken, and D. S. Kim, “Fourier-transform terahertz near-field imaging of one-dimensional slit arrays: mapping of electric-field-, magnetic-field-, and Poynting vectors,” Opt. Express 15(19), 11781–11789 (2007).
[CrossRef] [PubMed]

T. Hattori and M. Sakamoto, “Deformation corrected real-time terahertz imaging,” Appl. Phys. Lett. 90(26), 261106 (2007).
[CrossRef]

2003 (1)

H.-T. Chen, R. Kersting, and G. C. Cho, “Terahertz imaging with nanometer resolution,” Appl. Phys. Lett. 83(15), 3009–3011 (2003).
[CrossRef]

2002 (3)

N. C. J. van der Valk and P. C. M. Planken, “Electro-optic detection of subwavelength terahertz spot sizes in the near field of a metal tip,” Appl. Phys. Lett. 81(9), 1558–1560 (2002).
[CrossRef]

P. Haring Bolivar, M. Brucherseifer, M. Nagel, H. Kurz, A. Bosserhoff, and R. Büttner, “Label-free probing of genes by time-domain terahertz sensing,” Phys. Med. Biol. 47(21), 3815–3821 (2002).
[CrossRef] [PubMed]

J. Hebling, G. Almási, I. Z. Kozma, and J. Kuhl, “Velocity matching by pulse front tilting for large area THz-pulse generation,” Opt. Express 10(21), 1161–1166 (2002).
[PubMed]

2000 (3)

1999 (1)

Z. Jiang, F. G. Sun, Q. Chen, and X.-C. Zhang, “Electro-optic sampling near zero optical transmission point,” Appl. Phys. Lett. 74(9), 1191–1193 (1999).
[CrossRef]

1998 (1)

S. Hunsche, M. Koch, I. Brener, and M. C. Nuss, “THz near-field imaging,” Opt. Commun. 150(1-6), 22–26 (1998).
[CrossRef]

1996 (2)

D. M. Mittleman, R. H. Jacobsen, and M. C. Nuss, “T-ray imaging,” IEEE J. Sel. Top. Quantum Electron. 2(3), 679–692 (1996).
[CrossRef]

Q. Wu, T. D. Hewitt, and X.-C. Zhang, “Two-dimensional electro-optic imaging of THz beams,” Appl. Phys. Lett. 69(8), 1026–1028 (1996).
[CrossRef]

1995 (1)

1990 (1)

Adam, A. J. L.

Ahn, K. J.

Aizpurua, J.

A. J. Huber, F. Keilmann, J. Wittborn, J. Aizpurua, and R. Hillenbrand, “Terahertz near-field nanoscopy of mobile carriers in single semiconductor nanodevices,” Nano Lett. 8(11), 3766–3770 (2008).
[CrossRef] [PubMed]

Almási, G.

Bitzer, A.

Bolivar, P. H.

M. Brucherseifer, M. Nagel, P. H. Bolivar, H. Kurz, A. Bosserhoff, and R. Büttner, “Label-free probing of the binding state of DNA by time-domain terahertz sensing,” Appl. Phys. Lett. 77(24), 4049–4051 (2000).
[CrossRef]

Bosserhoff, A.

P. Haring Bolivar, M. Brucherseifer, M. Nagel, H. Kurz, A. Bosserhoff, and R. Büttner, “Label-free probing of genes by time-domain terahertz sensing,” Phys. Med. Biol. 47(21), 3815–3821 (2002).
[CrossRef] [PubMed]

M. Brucherseifer, M. Nagel, P. H. Bolivar, H. Kurz, A. Bosserhoff, and R. Büttner, “Label-free probing of the binding state of DNA by time-domain terahertz sensing,” Appl. Phys. Lett. 77(24), 4049–4051 (2000).
[CrossRef]

Brener, I.

S. Hunsche, M. Koch, I. Brener, and M. C. Nuss, “THz near-field imaging,” Opt. Commun. 150(1-6), 22–26 (1998).
[CrossRef]

Brok, J. M.

Brucherseifer, M.

P. Haring Bolivar, M. Brucherseifer, M. Nagel, H. Kurz, A. Bosserhoff, and R. Büttner, “Label-free probing of genes by time-domain terahertz sensing,” Phys. Med. Biol. 47(21), 3815–3821 (2002).
[CrossRef] [PubMed]

M. Brucherseifer, M. Nagel, P. H. Bolivar, H. Kurz, A. Bosserhoff, and R. Büttner, “Label-free probing of the binding state of DNA by time-domain terahertz sensing,” Appl. Phys. Lett. 77(24), 4049–4051 (2000).
[CrossRef]

Büttner, R.

P. Haring Bolivar, M. Brucherseifer, M. Nagel, H. Kurz, A. Bosserhoff, and R. Büttner, “Label-free probing of genes by time-domain terahertz sensing,” Phys. Med. Biol. 47(21), 3815–3821 (2002).
[CrossRef] [PubMed]

M. Brucherseifer, M. Nagel, P. H. Bolivar, H. Kurz, A. Bosserhoff, and R. Büttner, “Label-free probing of the binding state of DNA by time-domain terahertz sensing,” Appl. Phys. Lett. 77(24), 4049–4051 (2000).
[CrossRef]

Chakkittakandy, R.

Chan, W. L.

W. L. Chan, J. Deibel, and D. M. Mittleman, “Imaging with terahertz radiation,” Rep. Prog. Phys. 70(8), 1325–1379 (2007).
[CrossRef]

Chen, H.-T.

H.-T. Chen, R. Kersting, and G. C. Cho, “Terahertz imaging with nanometer resolution,” Appl. Phys. Lett. 83(15), 3009–3011 (2003).
[CrossRef]

Chen, Q.

Q. Chen, Z. Jiang, G. X. Xu, and X.-C. Zhang, “Near-field terahertz imaging with a dynamic aperture,” Opt. Lett. 25(15), 1122–1124 (2000).
[CrossRef]

Z. Jiang, F. G. Sun, Q. Chen, and X.-C. Zhang, “Electro-optic sampling near zero optical transmission point,” Appl. Phys. Lett. 74(9), 1191–1193 (1999).
[CrossRef]

Cho, G. C.

H.-T. Chen, R. Kersting, and G. C. Cho, “Terahertz imaging with nanometer resolution,” Appl. Phys. Lett. 83(15), 3009–3011 (2003).
[CrossRef]

Corver, J. A. W. M.

Cui, Y.

X. Wang, Y. Cui, D. Hu, W. Sun, J. Ye, and Y. Zhang, “Terahertz quasi-near-field real-time imaging,” Opt. Commun. 282(24), 4683–4687 (2009).
[CrossRef]

Deibel, J.

W. L. Chan, J. Deibel, and D. M. Mittleman, “Imaging with terahertz radiation,” Rep. Prog. Phys. 70(8), 1325–1379 (2007).
[CrossRef]

Fattinger, Ch.

Grischkowsky, D.

Haring Bolivar, P.

P. Haring Bolivar, M. Brucherseifer, M. Nagel, H. Kurz, A. Bosserhoff, and R. Büttner, “Label-free probing of genes by time-domain terahertz sensing,” Phys. Med. Biol. 47(21), 3815–3821 (2002).
[CrossRef] [PubMed]

Hattori, T.

T. Hattori and M. Sakamoto, “Deformation corrected real-time terahertz imaging,” Appl. Phys. Lett. 90(26), 261106 (2007).
[CrossRef]

Hebling, J.

Hewitt, T. D.

Q. Wu, T. D. Hewitt, and X.-C. Zhang, “Two-dimensional electro-optic imaging of THz beams,” Appl. Phys. Lett. 69(8), 1026–1028 (1996).
[CrossRef]

Hillenbrand, R.

A. J. Huber, F. Keilmann, J. Wittborn, J. Aizpurua, and R. Hillenbrand, “Terahertz near-field nanoscopy of mobile carriers in single semiconductor nanodevices,” Nano Lett. 8(11), 3766–3770 (2008).
[CrossRef] [PubMed]

Hu, B. B.

Hu, D.

X. Wang, Y. Cui, D. Hu, W. Sun, J. Ye, and Y. Zhang, “Terahertz quasi-near-field real-time imaging,” Opt. Commun. 282(24), 4683–4687 (2009).
[CrossRef]

Huber, A. J.

A. J. Huber, F. Keilmann, J. Wittborn, J. Aizpurua, and R. Hillenbrand, “Terahertz near-field nanoscopy of mobile carriers in single semiconductor nanodevices,” Nano Lett. 8(11), 3766–3770 (2008).
[CrossRef] [PubMed]

Hunsche, S.

S. Hunsche, M. Koch, I. Brener, and M. C. Nuss, “THz near-field imaging,” Opt. Commun. 150(1-6), 22–26 (1998).
[CrossRef]

Jacobsen, R. H.

D. M. Mittleman, R. H. Jacobsen, and M. C. Nuss, “T-ray imaging,” IEEE J. Sel. Top. Quantum Electron. 2(3), 679–692 (1996).
[CrossRef]

Jeoung, S. C.

Jewariya, M.

Jiang, Z.

Kang, J. H.

Keiding, S.

Keilmann, F.

A. J. Huber, F. Keilmann, J. Wittborn, J. Aizpurua, and R. Hillenbrand, “Terahertz near-field nanoscopy of mobile carriers in single semiconductor nanodevices,” Nano Lett. 8(11), 3766–3770 (2008).
[CrossRef] [PubMed]

Kersting, R.

H.-T. Chen, R. Kersting, and G. C. Cho, “Terahertz imaging with nanometer resolution,” Appl. Phys. Lett. 83(15), 3009–3011 (2003).
[CrossRef]

Kim, D. S.

Koch, M.

S. Hunsche, M. Koch, I. Brener, and M. C. Nuss, “THz near-field imaging,” Opt. Commun. 150(1-6), 22–26 (1998).
[CrossRef]

Kozma, I. Z.

Kuhl, J.

Kurz, H.

P. Haring Bolivar, M. Brucherseifer, M. Nagel, H. Kurz, A. Bosserhoff, and R. Büttner, “Label-free probing of genes by time-domain terahertz sensing,” Phys. Med. Biol. 47(21), 3815–3821 (2002).
[CrossRef] [PubMed]

M. Brucherseifer, M. Nagel, P. H. Bolivar, H. Kurz, A. Bosserhoff, and R. Büttner, “Label-free probing of the binding state of DNA by time-domain terahertz sensing,” Appl. Phys. Lett. 77(24), 4049–4051 (2000).
[CrossRef]

Lee, J. W.

Mittleman, D. M.

W. L. Chan, J. Deibel, and D. M. Mittleman, “Imaging with terahertz radiation,” Rep. Prog. Phys. 70(8), 1325–1379 (2007).
[CrossRef]

D. M. Mittleman, R. H. Jacobsen, and M. C. Nuss, “T-ray imaging,” IEEE J. Sel. Top. Quantum Electron. 2(3), 679–692 (1996).
[CrossRef]

Nagai, M.

Nagel, M.

A. J. L. Adam, J. M. Brok, M. A. Seo, K. J. Ahn, D. S. Kim, J. H. Kang, Q. H. Park, M. Nagel, and P. C. M. Planken, “Advanced terahertz electric near-field measurements at sub-wavelength diameter metallic apertures,” Opt. Express 16(10), 7407–7417 (2008).
[CrossRef] [PubMed]

P. Haring Bolivar, M. Brucherseifer, M. Nagel, H. Kurz, A. Bosserhoff, and R. Büttner, “Label-free probing of genes by time-domain terahertz sensing,” Phys. Med. Biol. 47(21), 3815–3821 (2002).
[CrossRef] [PubMed]

M. Brucherseifer, M. Nagel, P. H. Bolivar, H. Kurz, A. Bosserhoff, and R. Büttner, “Label-free probing of the binding state of DNA by time-domain terahertz sensing,” Appl. Phys. Lett. 77(24), 4049–4051 (2000).
[CrossRef]

Nuss, M. C.

S. Hunsche, M. Koch, I. Brener, and M. C. Nuss, “THz near-field imaging,” Opt. Commun. 150(1-6), 22–26 (1998).
[CrossRef]

D. M. Mittleman, R. H. Jacobsen, and M. C. Nuss, “T-ray imaging,” IEEE J. Sel. Top. Quantum Electron. 2(3), 679–692 (1996).
[CrossRef]

B. B. Hu and M. C. Nuss, “Imaging with terahertz waves,” Opt. Lett. 20(16), 1716–1718 (1995).
[CrossRef] [PubMed]

Ortner, A.

Park, Q. H.

Planken, P. C. M.

Sakamoto, M.

T. Hattori and M. Sakamoto, “Deformation corrected real-time terahertz imaging,” Appl. Phys. Lett. 90(26), 261106 (2007).
[CrossRef]

Seo, M. A.

Sun, F. G.

Z. Jiang, F. G. Sun, Q. Chen, and X.-C. Zhang, “Electro-optic sampling near zero optical transmission point,” Appl. Phys. Lett. 74(9), 1191–1193 (1999).
[CrossRef]

Sun, W.

X. Wang, Y. Cui, D. Hu, W. Sun, J. Ye, and Y. Zhang, “Terahertz quasi-near-field real-time imaging,” Opt. Commun. 282(24), 4683–4687 (2009).
[CrossRef]

Tanaka, K.

van der Valk, N. C. J.

N. C. J. van der Valk and P. C. M. Planken, “Electro-optic detection of subwavelength terahertz spot sizes in the near field of a metal tip,” Appl. Phys. Lett. 81(9), 1558–1560 (2002).
[CrossRef]

van Exter, M.

Walther, M.

Wang, X.

X. Wang, Y. Cui, D. Hu, W. Sun, J. Ye, and Y. Zhang, “Terahertz quasi-near-field real-time imaging,” Opt. Commun. 282(24), 4683–4687 (2009).
[CrossRef]

Wittborn, J.

A. J. Huber, F. Keilmann, J. Wittborn, J. Aizpurua, and R. Hillenbrand, “Terahertz near-field nanoscopy of mobile carriers in single semiconductor nanodevices,” Nano Lett. 8(11), 3766–3770 (2008).
[CrossRef] [PubMed]

Wu, Q.

Q. Wu, T. D. Hewitt, and X.-C. Zhang, “Two-dimensional electro-optic imaging of THz beams,” Appl. Phys. Lett. 69(8), 1026–1028 (1996).
[CrossRef]

Xu, G. X.

Xu, X. G.

Ye, J.

X. Wang, Y. Cui, D. Hu, W. Sun, J. Ye, and Y. Zhang, “Terahertz quasi-near-field real-time imaging,” Opt. Commun. 282(24), 4683–4687 (2009).
[CrossRef]

Zhang, X.-C.

Z. Jiang, X. G. Xu, and X.-C. Zhang, “Improvement of terahertz imaging with a dynamic subtraction technique,” Appl. Opt. 39(17), 2982–2987 (2000).
[CrossRef]

Q. Chen, Z. Jiang, G. X. Xu, and X.-C. Zhang, “Near-field terahertz imaging with a dynamic aperture,” Opt. Lett. 25(15), 1122–1124 (2000).
[CrossRef]

Z. Jiang, F. G. Sun, Q. Chen, and X.-C. Zhang, “Electro-optic sampling near zero optical transmission point,” Appl. Phys. Lett. 74(9), 1191–1193 (1999).
[CrossRef]

Q. Wu, T. D. Hewitt, and X.-C. Zhang, “Two-dimensional electro-optic imaging of THz beams,” Appl. Phys. Lett. 69(8), 1026–1028 (1996).
[CrossRef]

Zhang, Y.

X. Wang, Y. Cui, D. Hu, W. Sun, J. Ye, and Y. Zhang, “Terahertz quasi-near-field real-time imaging,” Opt. Commun. 282(24), 4683–4687 (2009).
[CrossRef]

Appl. Opt. (2)

Appl. Phys. Lett. (6)

M. Brucherseifer, M. Nagel, P. H. Bolivar, H. Kurz, A. Bosserhoff, and R. Büttner, “Label-free probing of the binding state of DNA by time-domain terahertz sensing,” Appl. Phys. Lett. 77(24), 4049–4051 (2000).
[CrossRef]

N. C. J. van der Valk and P. C. M. Planken, “Electro-optic detection of subwavelength terahertz spot sizes in the near field of a metal tip,” Appl. Phys. Lett. 81(9), 1558–1560 (2002).
[CrossRef]

H.-T. Chen, R. Kersting, and G. C. Cho, “Terahertz imaging with nanometer resolution,” Appl. Phys. Lett. 83(15), 3009–3011 (2003).
[CrossRef]

Q. Wu, T. D. Hewitt, and X.-C. Zhang, “Two-dimensional electro-optic imaging of THz beams,” Appl. Phys. Lett. 69(8), 1026–1028 (1996).
[CrossRef]

Z. Jiang, F. G. Sun, Q. Chen, and X.-C. Zhang, “Electro-optic sampling near zero optical transmission point,” Appl. Phys. Lett. 74(9), 1191–1193 (1999).
[CrossRef]

T. Hattori and M. Sakamoto, “Deformation corrected real-time terahertz imaging,” Appl. Phys. Lett. 90(26), 261106 (2007).
[CrossRef]

IEEE J. Sel. Top. Quantum Electron. (1)

D. M. Mittleman, R. H. Jacobsen, and M. C. Nuss, “T-ray imaging,” IEEE J. Sel. Top. Quantum Electron. 2(3), 679–692 (1996).
[CrossRef]

J. Opt. Soc. Am. B (2)

Nano Lett. (1)

A. J. Huber, F. Keilmann, J. Wittborn, J. Aizpurua, and R. Hillenbrand, “Terahertz near-field nanoscopy of mobile carriers in single semiconductor nanodevices,” Nano Lett. 8(11), 3766–3770 (2008).
[CrossRef] [PubMed]

Opt. Commun. (2)

S. Hunsche, M. Koch, I. Brener, and M. C. Nuss, “THz near-field imaging,” Opt. Commun. 150(1-6), 22–26 (1998).
[CrossRef]

X. Wang, Y. Cui, D. Hu, W. Sun, J. Ye, and Y. Zhang, “Terahertz quasi-near-field real-time imaging,” Opt. Commun. 282(24), 4683–4687 (2009).
[CrossRef]

Opt. Express (4)

Opt. Lett. (2)

Phys. Med. Biol. (1)

P. Haring Bolivar, M. Brucherseifer, M. Nagel, H. Kurz, A. Bosserhoff, and R. Büttner, “Label-free probing of genes by time-domain terahertz sensing,” Phys. Med. Biol. 47(21), 3815–3821 (2002).
[CrossRef] [PubMed]

Rep. Prog. Phys. (1)

W. L. Chan, J. Deibel, and D. M. Mittleman, “Imaging with terahertz radiation,” Rep. Prog. Phys. 70(8), 1325–1379 (2007).
[CrossRef]

Supplementary Material (1)

» Media 1: MPG (2704 KB)     

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Figures (4)

Fig. 1
Fig. 1

Schematic of the experimental setup. NPBS: non-polarized beam splitter, QWP: quarter-wave plate, Pol.: analyzing polarizer. The focal lengths of the three lenses are f1 = 200 mm, f2 = 36 mm, and f3 = 200 mm. Top and bottom surfaces of the EO crystal have a high-reflection and anti-reflection coating for a probe pulse, respectively. The black dotted line implies that the combination of lenses (f2 and f3) makes an image of the EO crystal surface on the CCD camera. Inset shows an optical micrograph of the tyrosine grain sample on a 1-mm-thick (110) ZnTe crystal.

Fig. 2
Fig. 2

(a) Optical micrograph of the grain of tyrosine sample on a 1-mm-thick (110) ZnTe crystal. Dotted circle shows the location where the time profiles presented in Fig. 3(a) were extracted. Figure 2(b)–(j) (Media 1) show the two-dimensional mapping of the THz electric-field component E y measured with increasing delay times after the irradiation of the sample. Scale bars show the relative strength of the measured fields. Movie showing the electric field at intermediate times is shown online (2.7 Mbyte).

Fig. 3
Fig. 3

(a) Time dependent electric field transients measured by the CCD camera (solid red line) and balanced EO detection (dotted blue line) at the location indicated by the dotted circle in Fig. 2(a). Dashed line shows the reference THz pulse without sample measured by the balanced EO detection. (b) Red and blue lines show the Fourier transformation of the THz transients taken 3.5 ps after the main peak position of Fig. 3(a) measured by the CCD camera and balanced EO detection, respectively. Dashed line shows the absorption spectra of the tyrosine pellet.

Fig. 4
Fig. 4

Line profile of the CCD signal across the tyrosine sample for the x-axis direction. Each value is estimated by integrating along the y-axis direction within the rectangular region shown in the inset.

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