Abstract

A scattering-free, polarization controllable Fresnel zone plate lens is demonstrated using a photo-induced alignment of the dye-doped liquid crystal film. This photo-aligned liquid crystal zone plate provides orthogonal polarization states for odd and even zones. The different focus orders can be separated because of their different polarization states. The fabrication process is relatively simple and the operation voltage is less than 5 Vrms.

© 2006 Optical Society of America

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  1. E. Marom, E. Ben-Eliezer, L. P. Yaroslavsky, and Z. Zalevsky, "Two methods for increasing the depth of focus of imaging systems," Proc. SPIE 5227, 8-15 (2004).
  2. M. Makowski, G. Mikula, M. Sypek, A. Kolodziejczyk, and C. Prokopowicz, "Diffractive elements with extended depth of focus," Proc. SPIE 5484, 475-481 (2004).
    [CrossRef]
  3. S. C. Kim, S. E. Lee, and E. S. Kim, "Optical implementation of real-time incoherent 3D imaging and display system using modified triangular interferometer," Proc. SPIE 5443, 250-256 (2004).
    [CrossRef]
  4. X. Ren, S. Liu, and X. Zhang, "Fabrication of off-axis holographic Fresnel lens used as multiplexer/demultiplexer in optical communications," Proc. SPIE 5456, 391-398 (2004).
    [CrossRef]
  5. J. T. Early and R. Hyde, "Twenty-meter space telescope based on diffractive Fresnel lens," Proc. SPIE 5166, 148-156 (2004).
    [CrossRef]
  6. R. Menon, E. E. Moon, M. K. Mondol, F. J. Castaño, and H. I. Smith, "Scanning-spatial-phase alignment for zone-plate-array lithography," J. Vac. Sci. Technol. B 22, 3382-3385 (2004).
    [CrossRef]
  7. C. H. Tsai, P. Lai, K. Lee, and C. K. Lee, "Fabrication of a large F-number lenticular plate and its use as a small-angle flat-top diffuser in autostereoscopic display screens," Proc. SPIE 3957, 322-329 (2000).
    [CrossRef]
  8. N. Kitaura, S. Ogata, and Y. Mori, "Spectrometer employing a micro-Fresnel lens," Opt. Eng. 34, 584-588 (1995).
    [CrossRef]
  9. J. Jahns and S. J. Walker, "Two-dimensional array of diffractive microlenses fabricated by thin film deposition," Appl. Opt. 29, 931-936 (1990).
    [CrossRef] [PubMed]
  10. K. Rastani, A. Marrakchi, S. F. Habiby, W. M. Hubbard, H. Gilchrist, and R. E. Nahory, "Binary phase Fresnel lenses for generation of two-dimensional beam arrays," Appl. Opt. 30, 1347-1354 (1991).
    [CrossRef] [PubMed]
  11. L. Mingtao, J. Wang, L. Zhuang, and S. Y. Chou, "Fabrication of circular optical structures with a 20 nm minimum feature size using nanoimprint lithography," Appl. Phys. Lett. 76, 673-675 (2000).
    [CrossRef]
  12. J. Canning, K. Sommer, S. Huntington, and A. Carter, "Silica-based fiber Fresnel lens," Opt. Commun. 199, 375-381 (2001).
    [CrossRef]
  13. A. Y.-G. Fuh, C. C. Liao, K. C. Hsu, C. L. Lu, and C.-Y. Tsai, "Dynamic studies of holographic gratings in dye-doped liquid-crystal films," Opt. Lett. 26, 1767-1769 (2001). http://www.opticsinfobase.org/abstract.cfm?URI=ol-26-22-1767
    [CrossRef]
  14. C. R. Lee, T. S. Mo, K. T. Cheng, T. L. Fu, and A.Y. G. Fuh, "Electrically switchable and thermally erasable biphotonic holographic gratings in dye-doped liquid crystal films," Appl. Phys. Lett. 83, 24-26 (2003).
    [CrossRef]
  15. C. R. Lee, T. L. Fu, K. T. Cheng, T. S. Mo, and A. Y. -G. Fuh, "Surface-assisted photoalignment in dye-doped liquid-crystal films," Phys. Rev. E 69, 031704 (2004).
    [CrossRef]
  16. A. Y. G. Fuh, C. R. Lee, and T. S. Mo, "Polarization holographic grating based on azo-dye-doped polymer-ball-type polymer-dispersed liquid crystals," J. Opt. Soc. Am. B 19, 2590-2594 (2002). http://www.opticsinfobase.org/abstract.cfm?URI=josab-19-11-2590
    [CrossRef]
  17. G. Williams, N. J. Powell, A. Purvis and M. G. Clark, "Electrically controllable liquid crystal Fresnel lens," Proc. SPIE 1168, 352-357 (1989).
  18. J. S. Patel and K. Rastani, "Electrically controlled polarization-independent liquid-crystal Fresnel lens arrays," Opt. Lett. 16, 532-534 (1991).
    [CrossRef] [PubMed]
  19. M. Ferstl and A. Frisch, "Static and dynamic Fresnel zone lenses for optical interconnections," J. Mod. Opt. 43, 1451-1462 (1996).
    [CrossRef]
  20. H. Ren, Y. H. Fan, and S. T. Wu, "Tunable Fresnel lens using nanoscale polymer-dispersed liquid crystals," Appl. Phys. Lett. 83, 1515-1517 (2003).
    [CrossRef]
  21. Y. H. Fan, H. Ren and S. T. Wu, "Switchable Fresnel lens using polymer-stabilized liquid crystals," Opt. Express 11, 3080-3086 (2003). http://www.opticsinfobase.org/abstract.cfm?URI=oe-11-23-3080
    [CrossRef] [PubMed]
  22. R. S. Cudney, L. A. Ríos, H. M. Escamilla, "Electrically controlled Fresnel zone plates made from ring-shaped 180° domains," Opt. Express 12, 5783-5788 (2004). http://www.opticsinfobase.org/abstract.cfm?URI=oe-12-23-5783
    [CrossRef] [PubMed]
  23. T. Sasaki, H. Ono, N. Kawatsuki and M. Kuwabara, "Liquid crystal phase gratings using photoregulated photocrosslinkable polymer liquid crystals" Appl. Phys. Lett. 87, 161112 (2005).
    [CrossRef]

2005 (1)

T. Sasaki, H. Ono, N. Kawatsuki and M. Kuwabara, "Liquid crystal phase gratings using photoregulated photocrosslinkable polymer liquid crystals" Appl. Phys. Lett. 87, 161112 (2005).
[CrossRef]

2004 (8)

R. S. Cudney, L. A. Ríos, H. M. Escamilla, "Electrically controlled Fresnel zone plates made from ring-shaped 180° domains," Opt. Express 12, 5783-5788 (2004). http://www.opticsinfobase.org/abstract.cfm?URI=oe-12-23-5783
[CrossRef] [PubMed]

E. Marom, E. Ben-Eliezer, L. P. Yaroslavsky, and Z. Zalevsky, "Two methods for increasing the depth of focus of imaging systems," Proc. SPIE 5227, 8-15 (2004).

M. Makowski, G. Mikula, M. Sypek, A. Kolodziejczyk, and C. Prokopowicz, "Diffractive elements with extended depth of focus," Proc. SPIE 5484, 475-481 (2004).
[CrossRef]

S. C. Kim, S. E. Lee, and E. S. Kim, "Optical implementation of real-time incoherent 3D imaging and display system using modified triangular interferometer," Proc. SPIE 5443, 250-256 (2004).
[CrossRef]

X. Ren, S. Liu, and X. Zhang, "Fabrication of off-axis holographic Fresnel lens used as multiplexer/demultiplexer in optical communications," Proc. SPIE 5456, 391-398 (2004).
[CrossRef]

J. T. Early and R. Hyde, "Twenty-meter space telescope based on diffractive Fresnel lens," Proc. SPIE 5166, 148-156 (2004).
[CrossRef]

R. Menon, E. E. Moon, M. K. Mondol, F. J. Castaño, and H. I. Smith, "Scanning-spatial-phase alignment for zone-plate-array lithography," J. Vac. Sci. Technol. B 22, 3382-3385 (2004).
[CrossRef]

C. R. Lee, T. L. Fu, K. T. Cheng, T. S. Mo, and A. Y. -G. Fuh, "Surface-assisted photoalignment in dye-doped liquid-crystal films," Phys. Rev. E 69, 031704 (2004).
[CrossRef]

2003 (3)

C. R. Lee, T. S. Mo, K. T. Cheng, T. L. Fu, and A.Y. G. Fuh, "Electrically switchable and thermally erasable biphotonic holographic gratings in dye-doped liquid crystal films," Appl. Phys. Lett. 83, 24-26 (2003).
[CrossRef]

H. Ren, Y. H. Fan, and S. T. Wu, "Tunable Fresnel lens using nanoscale polymer-dispersed liquid crystals," Appl. Phys. Lett. 83, 1515-1517 (2003).
[CrossRef]

Y. H. Fan, H. Ren and S. T. Wu, "Switchable Fresnel lens using polymer-stabilized liquid crystals," Opt. Express 11, 3080-3086 (2003). http://www.opticsinfobase.org/abstract.cfm?URI=oe-11-23-3080
[CrossRef] [PubMed]

2002 (1)

2001 (2)

2000 (2)

L. Mingtao, J. Wang, L. Zhuang, and S. Y. Chou, "Fabrication of circular optical structures with a 20 nm minimum feature size using nanoimprint lithography," Appl. Phys. Lett. 76, 673-675 (2000).
[CrossRef]

C. H. Tsai, P. Lai, K. Lee, and C. K. Lee, "Fabrication of a large F-number lenticular plate and its use as a small-angle flat-top diffuser in autostereoscopic display screens," Proc. SPIE 3957, 322-329 (2000).
[CrossRef]

1996 (1)

M. Ferstl and A. Frisch, "Static and dynamic Fresnel zone lenses for optical interconnections," J. Mod. Opt. 43, 1451-1462 (1996).
[CrossRef]

1995 (1)

N. Kitaura, S. Ogata, and Y. Mori, "Spectrometer employing a micro-Fresnel lens," Opt. Eng. 34, 584-588 (1995).
[CrossRef]

1991 (2)

1990 (1)

1989 (1)

G. Williams, N. J. Powell, A. Purvis and M. G. Clark, "Electrically controllable liquid crystal Fresnel lens," Proc. SPIE 1168, 352-357 (1989).

Ben-Eliezer, E.

E. Marom, E. Ben-Eliezer, L. P. Yaroslavsky, and Z. Zalevsky, "Two methods for increasing the depth of focus of imaging systems," Proc. SPIE 5227, 8-15 (2004).

Canning, J.

J. Canning, K. Sommer, S. Huntington, and A. Carter, "Silica-based fiber Fresnel lens," Opt. Commun. 199, 375-381 (2001).
[CrossRef]

Carter, A.

J. Canning, K. Sommer, S. Huntington, and A. Carter, "Silica-based fiber Fresnel lens," Opt. Commun. 199, 375-381 (2001).
[CrossRef]

Castaño, F. J.

R. Menon, E. E. Moon, M. K. Mondol, F. J. Castaño, and H. I. Smith, "Scanning-spatial-phase alignment for zone-plate-array lithography," J. Vac. Sci. Technol. B 22, 3382-3385 (2004).
[CrossRef]

Cheng, K. T.

C. R. Lee, T. L. Fu, K. T. Cheng, T. S. Mo, and A. Y. -G. Fuh, "Surface-assisted photoalignment in dye-doped liquid-crystal films," Phys. Rev. E 69, 031704 (2004).
[CrossRef]

C. R. Lee, T. S. Mo, K. T. Cheng, T. L. Fu, and A.Y. G. Fuh, "Electrically switchable and thermally erasable biphotonic holographic gratings in dye-doped liquid crystal films," Appl. Phys. Lett. 83, 24-26 (2003).
[CrossRef]

Chou, S. Y.

L. Mingtao, J. Wang, L. Zhuang, and S. Y. Chou, "Fabrication of circular optical structures with a 20 nm minimum feature size using nanoimprint lithography," Appl. Phys. Lett. 76, 673-675 (2000).
[CrossRef]

Clark, M. G.

G. Williams, N. J. Powell, A. Purvis and M. G. Clark, "Electrically controllable liquid crystal Fresnel lens," Proc. SPIE 1168, 352-357 (1989).

Cudney, R. S.

Early, J. T.

J. T. Early and R. Hyde, "Twenty-meter space telescope based on diffractive Fresnel lens," Proc. SPIE 5166, 148-156 (2004).
[CrossRef]

Escamilla, H. M.

Fan, Y. H.

Ferstl, M.

M. Ferstl and A. Frisch, "Static and dynamic Fresnel zone lenses for optical interconnections," J. Mod. Opt. 43, 1451-1462 (1996).
[CrossRef]

Frisch, A.

M. Ferstl and A. Frisch, "Static and dynamic Fresnel zone lenses for optical interconnections," J. Mod. Opt. 43, 1451-1462 (1996).
[CrossRef]

Fu, T. L.

C. R. Lee, T. L. Fu, K. T. Cheng, T. S. Mo, and A. Y. -G. Fuh, "Surface-assisted photoalignment in dye-doped liquid-crystal films," Phys. Rev. E 69, 031704 (2004).
[CrossRef]

C. R. Lee, T. S. Mo, K. T. Cheng, T. L. Fu, and A.Y. G. Fuh, "Electrically switchable and thermally erasable biphotonic holographic gratings in dye-doped liquid crystal films," Appl. Phys. Lett. 83, 24-26 (2003).
[CrossRef]

Fuh, A. Y. G.

Fuh, A. Y. -G.

C. R. Lee, T. L. Fu, K. T. Cheng, T. S. Mo, and A. Y. -G. Fuh, "Surface-assisted photoalignment in dye-doped liquid-crystal films," Phys. Rev. E 69, 031704 (2004).
[CrossRef]

Fuh, A. Y.-G.

Fuh, A.Y. G.

C. R. Lee, T. S. Mo, K. T. Cheng, T. L. Fu, and A.Y. G. Fuh, "Electrically switchable and thermally erasable biphotonic holographic gratings in dye-doped liquid crystal films," Appl. Phys. Lett. 83, 24-26 (2003).
[CrossRef]

Gilchrist, H.

Habiby, S. F.

Hsu, K. C.

Hubbard, W. M.

Huntington, S.

J. Canning, K. Sommer, S. Huntington, and A. Carter, "Silica-based fiber Fresnel lens," Opt. Commun. 199, 375-381 (2001).
[CrossRef]

Hyde, R.

J. T. Early and R. Hyde, "Twenty-meter space telescope based on diffractive Fresnel lens," Proc. SPIE 5166, 148-156 (2004).
[CrossRef]

Jahns, J.

Kawatsuki, N.

T. Sasaki, H. Ono, N. Kawatsuki and M. Kuwabara, "Liquid crystal phase gratings using photoregulated photocrosslinkable polymer liquid crystals" Appl. Phys. Lett. 87, 161112 (2005).
[CrossRef]

Kim, E. S.

S. C. Kim, S. E. Lee, and E. S. Kim, "Optical implementation of real-time incoherent 3D imaging and display system using modified triangular interferometer," Proc. SPIE 5443, 250-256 (2004).
[CrossRef]

Kim, S. C.

S. C. Kim, S. E. Lee, and E. S. Kim, "Optical implementation of real-time incoherent 3D imaging and display system using modified triangular interferometer," Proc. SPIE 5443, 250-256 (2004).
[CrossRef]

Kitaura, N.

N. Kitaura, S. Ogata, and Y. Mori, "Spectrometer employing a micro-Fresnel lens," Opt. Eng. 34, 584-588 (1995).
[CrossRef]

Kolodziejczyk, A.

M. Makowski, G. Mikula, M. Sypek, A. Kolodziejczyk, and C. Prokopowicz, "Diffractive elements with extended depth of focus," Proc. SPIE 5484, 475-481 (2004).
[CrossRef]

Kuwabara, M.

T. Sasaki, H. Ono, N. Kawatsuki and M. Kuwabara, "Liquid crystal phase gratings using photoregulated photocrosslinkable polymer liquid crystals" Appl. Phys. Lett. 87, 161112 (2005).
[CrossRef]

Lai, P.

C. H. Tsai, P. Lai, K. Lee, and C. K. Lee, "Fabrication of a large F-number lenticular plate and its use as a small-angle flat-top diffuser in autostereoscopic display screens," Proc. SPIE 3957, 322-329 (2000).
[CrossRef]

Lee, C. K.

C. H. Tsai, P. Lai, K. Lee, and C. K. Lee, "Fabrication of a large F-number lenticular plate and its use as a small-angle flat-top diffuser in autostereoscopic display screens," Proc. SPIE 3957, 322-329 (2000).
[CrossRef]

Lee, C. R.

C. R. Lee, T. L. Fu, K. T. Cheng, T. S. Mo, and A. Y. -G. Fuh, "Surface-assisted photoalignment in dye-doped liquid-crystal films," Phys. Rev. E 69, 031704 (2004).
[CrossRef]

C. R. Lee, T. S. Mo, K. T. Cheng, T. L. Fu, and A.Y. G. Fuh, "Electrically switchable and thermally erasable biphotonic holographic gratings in dye-doped liquid crystal films," Appl. Phys. Lett. 83, 24-26 (2003).
[CrossRef]

A. Y. G. Fuh, C. R. Lee, and T. S. Mo, "Polarization holographic grating based on azo-dye-doped polymer-ball-type polymer-dispersed liquid crystals," J. Opt. Soc. Am. B 19, 2590-2594 (2002). http://www.opticsinfobase.org/abstract.cfm?URI=josab-19-11-2590
[CrossRef]

Lee, K.

C. H. Tsai, P. Lai, K. Lee, and C. K. Lee, "Fabrication of a large F-number lenticular plate and its use as a small-angle flat-top diffuser in autostereoscopic display screens," Proc. SPIE 3957, 322-329 (2000).
[CrossRef]

Lee, S. E.

S. C. Kim, S. E. Lee, and E. S. Kim, "Optical implementation of real-time incoherent 3D imaging and display system using modified triangular interferometer," Proc. SPIE 5443, 250-256 (2004).
[CrossRef]

Liao, C. C.

Liu, S.

X. Ren, S. Liu, and X. Zhang, "Fabrication of off-axis holographic Fresnel lens used as multiplexer/demultiplexer in optical communications," Proc. SPIE 5456, 391-398 (2004).
[CrossRef]

Lu, C. L.

Makowski, M.

M. Makowski, G. Mikula, M. Sypek, A. Kolodziejczyk, and C. Prokopowicz, "Diffractive elements with extended depth of focus," Proc. SPIE 5484, 475-481 (2004).
[CrossRef]

Marom, E.

E. Marom, E. Ben-Eliezer, L. P. Yaroslavsky, and Z. Zalevsky, "Two methods for increasing the depth of focus of imaging systems," Proc. SPIE 5227, 8-15 (2004).

Marrakchi, A.

Menon, R.

R. Menon, E. E. Moon, M. K. Mondol, F. J. Castaño, and H. I. Smith, "Scanning-spatial-phase alignment for zone-plate-array lithography," J. Vac. Sci. Technol. B 22, 3382-3385 (2004).
[CrossRef]

Mikula, G.

M. Makowski, G. Mikula, M. Sypek, A. Kolodziejczyk, and C. Prokopowicz, "Diffractive elements with extended depth of focus," Proc. SPIE 5484, 475-481 (2004).
[CrossRef]

Mingtao, L.

L. Mingtao, J. Wang, L. Zhuang, and S. Y. Chou, "Fabrication of circular optical structures with a 20 nm minimum feature size using nanoimprint lithography," Appl. Phys. Lett. 76, 673-675 (2000).
[CrossRef]

Mo, T. S.

C. R. Lee, T. L. Fu, K. T. Cheng, T. S. Mo, and A. Y. -G. Fuh, "Surface-assisted photoalignment in dye-doped liquid-crystal films," Phys. Rev. E 69, 031704 (2004).
[CrossRef]

C. R. Lee, T. S. Mo, K. T. Cheng, T. L. Fu, and A.Y. G. Fuh, "Electrically switchable and thermally erasable biphotonic holographic gratings in dye-doped liquid crystal films," Appl. Phys. Lett. 83, 24-26 (2003).
[CrossRef]

A. Y. G. Fuh, C. R. Lee, and T. S. Mo, "Polarization holographic grating based on azo-dye-doped polymer-ball-type polymer-dispersed liquid crystals," J. Opt. Soc. Am. B 19, 2590-2594 (2002). http://www.opticsinfobase.org/abstract.cfm?URI=josab-19-11-2590
[CrossRef]

Mondol, M. K.

R. Menon, E. E. Moon, M. K. Mondol, F. J. Castaño, and H. I. Smith, "Scanning-spatial-phase alignment for zone-plate-array lithography," J. Vac. Sci. Technol. B 22, 3382-3385 (2004).
[CrossRef]

Moon, E. E.

R. Menon, E. E. Moon, M. K. Mondol, F. J. Castaño, and H. I. Smith, "Scanning-spatial-phase alignment for zone-plate-array lithography," J. Vac. Sci. Technol. B 22, 3382-3385 (2004).
[CrossRef]

Mori, Y.

N. Kitaura, S. Ogata, and Y. Mori, "Spectrometer employing a micro-Fresnel lens," Opt. Eng. 34, 584-588 (1995).
[CrossRef]

Nahory, R. E.

Ogata, S.

N. Kitaura, S. Ogata, and Y. Mori, "Spectrometer employing a micro-Fresnel lens," Opt. Eng. 34, 584-588 (1995).
[CrossRef]

Ono, H.

T. Sasaki, H. Ono, N. Kawatsuki and M. Kuwabara, "Liquid crystal phase gratings using photoregulated photocrosslinkable polymer liquid crystals" Appl. Phys. Lett. 87, 161112 (2005).
[CrossRef]

Patel, J. S.

Powell, N. J.

G. Williams, N. J. Powell, A. Purvis and M. G. Clark, "Electrically controllable liquid crystal Fresnel lens," Proc. SPIE 1168, 352-357 (1989).

Prokopowicz, C.

M. Makowski, G. Mikula, M. Sypek, A. Kolodziejczyk, and C. Prokopowicz, "Diffractive elements with extended depth of focus," Proc. SPIE 5484, 475-481 (2004).
[CrossRef]

Purvis, A.

G. Williams, N. J. Powell, A. Purvis and M. G. Clark, "Electrically controllable liquid crystal Fresnel lens," Proc. SPIE 1168, 352-357 (1989).

Rastani, K.

Ren, H.

Ren, X.

X. Ren, S. Liu, and X. Zhang, "Fabrication of off-axis holographic Fresnel lens used as multiplexer/demultiplexer in optical communications," Proc. SPIE 5456, 391-398 (2004).
[CrossRef]

Ríos, L. A.

Sasaki, T.

T. Sasaki, H. Ono, N. Kawatsuki and M. Kuwabara, "Liquid crystal phase gratings using photoregulated photocrosslinkable polymer liquid crystals" Appl. Phys. Lett. 87, 161112 (2005).
[CrossRef]

Smith, H. I.

R. Menon, E. E. Moon, M. K. Mondol, F. J. Castaño, and H. I. Smith, "Scanning-spatial-phase alignment for zone-plate-array lithography," J. Vac. Sci. Technol. B 22, 3382-3385 (2004).
[CrossRef]

Sommer, K.

J. Canning, K. Sommer, S. Huntington, and A. Carter, "Silica-based fiber Fresnel lens," Opt. Commun. 199, 375-381 (2001).
[CrossRef]

Sypek, M.

M. Makowski, G. Mikula, M. Sypek, A. Kolodziejczyk, and C. Prokopowicz, "Diffractive elements with extended depth of focus," Proc. SPIE 5484, 475-481 (2004).
[CrossRef]

Tsai, C. H.

C. H. Tsai, P. Lai, K. Lee, and C. K. Lee, "Fabrication of a large F-number lenticular plate and its use as a small-angle flat-top diffuser in autostereoscopic display screens," Proc. SPIE 3957, 322-329 (2000).
[CrossRef]

Tsai, C.-Y.

Walker, S. J.

Wang, J.

L. Mingtao, J. Wang, L. Zhuang, and S. Y. Chou, "Fabrication of circular optical structures with a 20 nm minimum feature size using nanoimprint lithography," Appl. Phys. Lett. 76, 673-675 (2000).
[CrossRef]

Williams, G.

G. Williams, N. J. Powell, A. Purvis and M. G. Clark, "Electrically controllable liquid crystal Fresnel lens," Proc. SPIE 1168, 352-357 (1989).

Wu, S. T.

Yaroslavsky, L. P.

E. Marom, E. Ben-Eliezer, L. P. Yaroslavsky, and Z. Zalevsky, "Two methods for increasing the depth of focus of imaging systems," Proc. SPIE 5227, 8-15 (2004).

Zalevsky, Z.

E. Marom, E. Ben-Eliezer, L. P. Yaroslavsky, and Z. Zalevsky, "Two methods for increasing the depth of focus of imaging systems," Proc. SPIE 5227, 8-15 (2004).

Zhang, X.

X. Ren, S. Liu, and X. Zhang, "Fabrication of off-axis holographic Fresnel lens used as multiplexer/demultiplexer in optical communications," Proc. SPIE 5456, 391-398 (2004).
[CrossRef]

Zhuang, L.

L. Mingtao, J. Wang, L. Zhuang, and S. Y. Chou, "Fabrication of circular optical structures with a 20 nm minimum feature size using nanoimprint lithography," Appl. Phys. Lett. 76, 673-675 (2000).
[CrossRef]

Appl. Opt. (2)

Appl. Phys. Lett. (4)

L. Mingtao, J. Wang, L. Zhuang, and S. Y. Chou, "Fabrication of circular optical structures with a 20 nm minimum feature size using nanoimprint lithography," Appl. Phys. Lett. 76, 673-675 (2000).
[CrossRef]

C. R. Lee, T. S. Mo, K. T. Cheng, T. L. Fu, and A.Y. G. Fuh, "Electrically switchable and thermally erasable biphotonic holographic gratings in dye-doped liquid crystal films," Appl. Phys. Lett. 83, 24-26 (2003).
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Figures (7)

Fig. 1.
Fig. 1.

Schematic representation of the fabrication process of the dye-doped LC Fresnel lens

Fig. 2.
Fig. 2.

Schematic diagram of the corresponding LC arrangement of the photo-aligned dye-doped LC Fresnel lens. The top layer is a patterned photomask.

Fig. 3.
Fig. 3.

Microscope images of the photo-aligned dye-doped LC Fresnel lens cell with (a) crossed polarizers, and (b) parallel polarizers.

Fig. 4.
Fig. 4.

The experimental setup for studying the focusing properties of the dye-doped LC Fresnel lens. Focal length L1= 50 mm, and L2= 250 mm, and pinhole diameter P= 30 μm.

Fig. 5.
Fig. 5.

The observed laser beam images: (a) Without analyzer, (b) With analyzer,α = 45°, (c) With analyzer,a = -45°.

Fig. 6.
Fig. 6.

Imaging and focusing properties of the photo-aligned dye-doped LC Fresnel lens recorded by a CCD camera. (a) Without analyzer, (b) With analyzer,α = 45°, (c) With analyzer,α = -45°.

Fig. 7.
Fig. 7.

The voltage-dependent diffraction efficiency of the dye-doped LC Fresnel lens. The diameter of the Fresnel zone plate is 1 cm and the focal length is 50 cm.

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