Abstract

This study investigates the optical nonlinearity of beam propagation in homogeneously aligned nematic liquid crystal (NLC) cells at a temperature close to the nematic-isotropic temperature (TNI). The undulate propagation mode with convergent and divergent loops appearing alternately is reported and the thermally enhanced optical reorientation nonlinearity at the focus is described. The optically induced phase transition exists along the pump beam direction. With the application of the conscopic technique, the arrangements of LC at the focus are proposed in this study. Results of this study demonstrate that the evolution of the LC configuration was affected by the pump beam based on the analysis of conoscopic patterns.

© 2008 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. F. Simoni, Nonlinear Optical Properties of Liquid Crystals and Polymer Dispersed Liquid Crystals (World Scientific, Singapore, 1997).
  2. I. C. Khoo and S. T. Wu, Optics and Nonlinear Optics of Liquid Crystals (World Scientific, Singapore, 1993).
  3. E. Braun, L. P. Faucheux, and A. Libchaber, "Strong self-focusing in nematic liquid crystals," Phys. Rev. A 48, 611-622 (1993).
    [CrossRef] [PubMed]
  4. D. Durbin, S. M. Arakelian, and Y. R. Shen, "Optical-field-induced birefringence and Freedericksz transition in a nematic liquid crystal," Phys. Rev. Lett. 47, 1411-1414 (1981).
    [CrossRef]
  5. I. C. Khoo, S. L. Zhuang, and S. Shepard, "Self-focusing of a low power cw laser beam via optically induced birefringence in a nematic liquid-crystal film," Appl. Phys. Lett. 39, 937-940 (1981).
    [CrossRef]
  6. I. Janossy and T. Kosa, "Influence of anthraquinone dyes on optical reorientation of nematic liquid crystals,"Opt. Lett. 17, 1183-1185 (1992).
    [CrossRef] [PubMed]
  7. I. C. Khoo, S. Slussarenko, B. D. Guenther, M.-Y. Shih, P. Chen, and W. V. Wood, "Optically induced space charge fields, dc voltage, and extraordinarily large nonlinearity in dye-doped nematic liquid crystals," Opt. Lett,  23, 253-255 (1998).
    [CrossRef]
  8. A. Shishido, M. Y. Shih, and I. C. Khoo, "Analysis of optically induced refractive index change of dye-doped nematic liquid crystals," J. Nonlinear Opt. Phys. Mat. 11, 1-12 (2002).
    [CrossRef]
  9. M. Segev and G. Stegeman, "Self-trapping of optical beams: spatial solitons," Phys. Today 51, 42-48 (1998).
    [CrossRef]
  10. M. Peccianti, A. D. Rossi, G. Assanto, A. D. Luca, and I. C. Khoo, "Electrically assisted self-confinement and waveguiding in planar nematic liquid crystal cells," Appl. Phys. Lett. 77, 7-9 (2000).
    [CrossRef]
  11. M. Peccianti and G. Assanto, "Nematic liquid crystals: A suitable medium for self-confinement of coherent and incoherent light," Phys. Rev. E,  65, 035603-4 (2002).
    [CrossRef]
  12. M. Peccianti, K. A. Brzdakiewicz, and G. Assanto, "Nonlocal spatial soliton interactions in nematic liquid crystals," Opt. Lett. 27, 1460-1462 (2002).
    [CrossRef]
  13. M. S. Tsai, I. M. Jiang, C. Y. Huang, and C. C. Shih, "Reorientational optical nonlinearity of nematic liquid crystal cells near the nematic isotropic phase transition temperature," Opt. Lett. 28, 2357-2359 (2003).
    [CrossRef] [PubMed]
  14. F. Bloisi, L. Vicari, and F. Simoni, "Remarks on the temperature dependence of the optical Friedericksz transition," Opt. Commun. 76, 261-264 (1990).
    [CrossRef]
  15. M. Warenghem, J. F. Henninot, and G. Abbate, "Non linearly induced self waveguiding structure in dye doped nematic liquid crystals confined in capillaries," Opt. Express 2, 483-490 (1998).
    [CrossRef] [PubMed]
  16. F. Derrien, J. F. Henninot, M. Warenghem, and G. Abbate, "A thermal (2D+1) spatial optical soliton in a dye doped liquid crystal," J. Opt. A,  2, 332-337 (2000).
    [CrossRef]
  17. S. Elston and R. Sambles, The Optics of Thermotropic Liquid Crystal (Taylor & Francis, London, 1998).
  18. P. Yeh and C. Gu, Optics of Liquid Crystal Displays (Wiley Interscience, New York, 1999).

2003

2002

M. Peccianti, K. A. Brzdakiewicz, and G. Assanto, "Nonlocal spatial soliton interactions in nematic liquid crystals," Opt. Lett. 27, 1460-1462 (2002).
[CrossRef]

A. Shishido, M. Y. Shih, and I. C. Khoo, "Analysis of optically induced refractive index change of dye-doped nematic liquid crystals," J. Nonlinear Opt. Phys. Mat. 11, 1-12 (2002).
[CrossRef]

M. Peccianti and G. Assanto, "Nematic liquid crystals: A suitable medium for self-confinement of coherent and incoherent light," Phys. Rev. E,  65, 035603-4 (2002).
[CrossRef]

2000

M. Peccianti, A. D. Rossi, G. Assanto, A. D. Luca, and I. C. Khoo, "Electrically assisted self-confinement and waveguiding in planar nematic liquid crystal cells," Appl. Phys. Lett. 77, 7-9 (2000).
[CrossRef]

F. Derrien, J. F. Henninot, M. Warenghem, and G. Abbate, "A thermal (2D+1) spatial optical soliton in a dye doped liquid crystal," J. Opt. A,  2, 332-337 (2000).
[CrossRef]

1998

M. Warenghem, J. F. Henninot, and G. Abbate, "Non linearly induced self waveguiding structure in dye doped nematic liquid crystals confined in capillaries," Opt. Express 2, 483-490 (1998).
[CrossRef] [PubMed]

I. C. Khoo, S. Slussarenko, B. D. Guenther, M.-Y. Shih, P. Chen, and W. V. Wood, "Optically induced space charge fields, dc voltage, and extraordinarily large nonlinearity in dye-doped nematic liquid crystals," Opt. Lett,  23, 253-255 (1998).
[CrossRef]

M. Segev and G. Stegeman, "Self-trapping of optical beams: spatial solitons," Phys. Today 51, 42-48 (1998).
[CrossRef]

1993

E. Braun, L. P. Faucheux, and A. Libchaber, "Strong self-focusing in nematic liquid crystals," Phys. Rev. A 48, 611-622 (1993).
[CrossRef] [PubMed]

1992

1990

F. Bloisi, L. Vicari, and F. Simoni, "Remarks on the temperature dependence of the optical Friedericksz transition," Opt. Commun. 76, 261-264 (1990).
[CrossRef]

1981

D. Durbin, S. M. Arakelian, and Y. R. Shen, "Optical-field-induced birefringence and Freedericksz transition in a nematic liquid crystal," Phys. Rev. Lett. 47, 1411-1414 (1981).
[CrossRef]

I. C. Khoo, S. L. Zhuang, and S. Shepard, "Self-focusing of a low power cw laser beam via optically induced birefringence in a nematic liquid-crystal film," Appl. Phys. Lett. 39, 937-940 (1981).
[CrossRef]

Abbate, G.

F. Derrien, J. F. Henninot, M. Warenghem, and G. Abbate, "A thermal (2D+1) spatial optical soliton in a dye doped liquid crystal," J. Opt. A,  2, 332-337 (2000).
[CrossRef]

M. Warenghem, J. F. Henninot, and G. Abbate, "Non linearly induced self waveguiding structure in dye doped nematic liquid crystals confined in capillaries," Opt. Express 2, 483-490 (1998).
[CrossRef] [PubMed]

Arakelian, S. M.

D. Durbin, S. M. Arakelian, and Y. R. Shen, "Optical-field-induced birefringence and Freedericksz transition in a nematic liquid crystal," Phys. Rev. Lett. 47, 1411-1414 (1981).
[CrossRef]

Assanto, G.

M. Peccianti, K. A. Brzdakiewicz, and G. Assanto, "Nonlocal spatial soliton interactions in nematic liquid crystals," Opt. Lett. 27, 1460-1462 (2002).
[CrossRef]

M. Peccianti and G. Assanto, "Nematic liquid crystals: A suitable medium for self-confinement of coherent and incoherent light," Phys. Rev. E,  65, 035603-4 (2002).
[CrossRef]

M. Peccianti, A. D. Rossi, G. Assanto, A. D. Luca, and I. C. Khoo, "Electrically assisted self-confinement and waveguiding in planar nematic liquid crystal cells," Appl. Phys. Lett. 77, 7-9 (2000).
[CrossRef]

Bloisi, F.

F. Bloisi, L. Vicari, and F. Simoni, "Remarks on the temperature dependence of the optical Friedericksz transition," Opt. Commun. 76, 261-264 (1990).
[CrossRef]

Braun, E.

E. Braun, L. P. Faucheux, and A. Libchaber, "Strong self-focusing in nematic liquid crystals," Phys. Rev. A 48, 611-622 (1993).
[CrossRef] [PubMed]

Brzdakiewicz, K. A.

Chen, P.

I. C. Khoo, S. Slussarenko, B. D. Guenther, M.-Y. Shih, P. Chen, and W. V. Wood, "Optically induced space charge fields, dc voltage, and extraordinarily large nonlinearity in dye-doped nematic liquid crystals," Opt. Lett,  23, 253-255 (1998).
[CrossRef]

Derrien, F.

F. Derrien, J. F. Henninot, M. Warenghem, and G. Abbate, "A thermal (2D+1) spatial optical soliton in a dye doped liquid crystal," J. Opt. A,  2, 332-337 (2000).
[CrossRef]

Durbin, D.

D. Durbin, S. M. Arakelian, and Y. R. Shen, "Optical-field-induced birefringence and Freedericksz transition in a nematic liquid crystal," Phys. Rev. Lett. 47, 1411-1414 (1981).
[CrossRef]

Faucheux, L. P.

E. Braun, L. P. Faucheux, and A. Libchaber, "Strong self-focusing in nematic liquid crystals," Phys. Rev. A 48, 611-622 (1993).
[CrossRef] [PubMed]

Guenther, B. D.

I. C. Khoo, S. Slussarenko, B. D. Guenther, M.-Y. Shih, P. Chen, and W. V. Wood, "Optically induced space charge fields, dc voltage, and extraordinarily large nonlinearity in dye-doped nematic liquid crystals," Opt. Lett,  23, 253-255 (1998).
[CrossRef]

Henninot, J. F.

F. Derrien, J. F. Henninot, M. Warenghem, and G. Abbate, "A thermal (2D+1) spatial optical soliton in a dye doped liquid crystal," J. Opt. A,  2, 332-337 (2000).
[CrossRef]

M. Warenghem, J. F. Henninot, and G. Abbate, "Non linearly induced self waveguiding structure in dye doped nematic liquid crystals confined in capillaries," Opt. Express 2, 483-490 (1998).
[CrossRef] [PubMed]

Huang, C. Y.

Janossy, I.

Jiang, I. M.

Khoo, I. C.

A. Shishido, M. Y. Shih, and I. C. Khoo, "Analysis of optically induced refractive index change of dye-doped nematic liquid crystals," J. Nonlinear Opt. Phys. Mat. 11, 1-12 (2002).
[CrossRef]

M. Peccianti, A. D. Rossi, G. Assanto, A. D. Luca, and I. C. Khoo, "Electrically assisted self-confinement and waveguiding in planar nematic liquid crystal cells," Appl. Phys. Lett. 77, 7-9 (2000).
[CrossRef]

I. C. Khoo, S. Slussarenko, B. D. Guenther, M.-Y. Shih, P. Chen, and W. V. Wood, "Optically induced space charge fields, dc voltage, and extraordinarily large nonlinearity in dye-doped nematic liquid crystals," Opt. Lett,  23, 253-255 (1998).
[CrossRef]

I. C. Khoo, S. L. Zhuang, and S. Shepard, "Self-focusing of a low power cw laser beam via optically induced birefringence in a nematic liquid-crystal film," Appl. Phys. Lett. 39, 937-940 (1981).
[CrossRef]

Kosa, T.

Libchaber, A.

E. Braun, L. P. Faucheux, and A. Libchaber, "Strong self-focusing in nematic liquid crystals," Phys. Rev. A 48, 611-622 (1993).
[CrossRef] [PubMed]

Luca, A. D.

M. Peccianti, A. D. Rossi, G. Assanto, A. D. Luca, and I. C. Khoo, "Electrically assisted self-confinement and waveguiding in planar nematic liquid crystal cells," Appl. Phys. Lett. 77, 7-9 (2000).
[CrossRef]

Peccianti, M.

M. Peccianti, K. A. Brzdakiewicz, and G. Assanto, "Nonlocal spatial soliton interactions in nematic liquid crystals," Opt. Lett. 27, 1460-1462 (2002).
[CrossRef]

M. Peccianti and G. Assanto, "Nematic liquid crystals: A suitable medium for self-confinement of coherent and incoherent light," Phys. Rev. E,  65, 035603-4 (2002).
[CrossRef]

M. Peccianti, A. D. Rossi, G. Assanto, A. D. Luca, and I. C. Khoo, "Electrically assisted self-confinement and waveguiding in planar nematic liquid crystal cells," Appl. Phys. Lett. 77, 7-9 (2000).
[CrossRef]

Rossi, A. D.

M. Peccianti, A. D. Rossi, G. Assanto, A. D. Luca, and I. C. Khoo, "Electrically assisted self-confinement and waveguiding in planar nematic liquid crystal cells," Appl. Phys. Lett. 77, 7-9 (2000).
[CrossRef]

Segev, M.

M. Segev and G. Stegeman, "Self-trapping of optical beams: spatial solitons," Phys. Today 51, 42-48 (1998).
[CrossRef]

Shen, Y. R.

D. Durbin, S. M. Arakelian, and Y. R. Shen, "Optical-field-induced birefringence and Freedericksz transition in a nematic liquid crystal," Phys. Rev. Lett. 47, 1411-1414 (1981).
[CrossRef]

Shepard, S.

I. C. Khoo, S. L. Zhuang, and S. Shepard, "Self-focusing of a low power cw laser beam via optically induced birefringence in a nematic liquid-crystal film," Appl. Phys. Lett. 39, 937-940 (1981).
[CrossRef]

Shih, C. C.

Shih, M. Y.

A. Shishido, M. Y. Shih, and I. C. Khoo, "Analysis of optically induced refractive index change of dye-doped nematic liquid crystals," J. Nonlinear Opt. Phys. Mat. 11, 1-12 (2002).
[CrossRef]

Shih, M.-Y.

I. C. Khoo, S. Slussarenko, B. D. Guenther, M.-Y. Shih, P. Chen, and W. V. Wood, "Optically induced space charge fields, dc voltage, and extraordinarily large nonlinearity in dye-doped nematic liquid crystals," Opt. Lett,  23, 253-255 (1998).
[CrossRef]

Shishido, A.

A. Shishido, M. Y. Shih, and I. C. Khoo, "Analysis of optically induced refractive index change of dye-doped nematic liquid crystals," J. Nonlinear Opt. Phys. Mat. 11, 1-12 (2002).
[CrossRef]

Simoni, F.

F. Bloisi, L. Vicari, and F. Simoni, "Remarks on the temperature dependence of the optical Friedericksz transition," Opt. Commun. 76, 261-264 (1990).
[CrossRef]

Slussarenko, S.

I. C. Khoo, S. Slussarenko, B. D. Guenther, M.-Y. Shih, P. Chen, and W. V. Wood, "Optically induced space charge fields, dc voltage, and extraordinarily large nonlinearity in dye-doped nematic liquid crystals," Opt. Lett,  23, 253-255 (1998).
[CrossRef]

Stegeman, G.

M. Segev and G. Stegeman, "Self-trapping of optical beams: spatial solitons," Phys. Today 51, 42-48 (1998).
[CrossRef]

Tsai, M. S.

Vicari, L.

F. Bloisi, L. Vicari, and F. Simoni, "Remarks on the temperature dependence of the optical Friedericksz transition," Opt. Commun. 76, 261-264 (1990).
[CrossRef]

Warenghem, M.

F. Derrien, J. F. Henninot, M. Warenghem, and G. Abbate, "A thermal (2D+1) spatial optical soliton in a dye doped liquid crystal," J. Opt. A,  2, 332-337 (2000).
[CrossRef]

M. Warenghem, J. F. Henninot, and G. Abbate, "Non linearly induced self waveguiding structure in dye doped nematic liquid crystals confined in capillaries," Opt. Express 2, 483-490 (1998).
[CrossRef] [PubMed]

Wood, W. V.

I. C. Khoo, S. Slussarenko, B. D. Guenther, M.-Y. Shih, P. Chen, and W. V. Wood, "Optically induced space charge fields, dc voltage, and extraordinarily large nonlinearity in dye-doped nematic liquid crystals," Opt. Lett,  23, 253-255 (1998).
[CrossRef]

Zhuang, S. L.

I. C. Khoo, S. L. Zhuang, and S. Shepard, "Self-focusing of a low power cw laser beam via optically induced birefringence in a nematic liquid-crystal film," Appl. Phys. Lett. 39, 937-940 (1981).
[CrossRef]

Appl. Phys. Lett.

I. C. Khoo, S. L. Zhuang, and S. Shepard, "Self-focusing of a low power cw laser beam via optically induced birefringence in a nematic liquid-crystal film," Appl. Phys. Lett. 39, 937-940 (1981).
[CrossRef]

M. Peccianti, A. D. Rossi, G. Assanto, A. D. Luca, and I. C. Khoo, "Electrically assisted self-confinement and waveguiding in planar nematic liquid crystal cells," Appl. Phys. Lett. 77, 7-9 (2000).
[CrossRef]

J. Nonlinear Opt. Phys. Mat.

A. Shishido, M. Y. Shih, and I. C. Khoo, "Analysis of optically induced refractive index change of dye-doped nematic liquid crystals," J. Nonlinear Opt. Phys. Mat. 11, 1-12 (2002).
[CrossRef]

J. Opt. A

F. Derrien, J. F. Henninot, M. Warenghem, and G. Abbate, "A thermal (2D+1) spatial optical soliton in a dye doped liquid crystal," J. Opt. A,  2, 332-337 (2000).
[CrossRef]

Opt. Commun.

F. Bloisi, L. Vicari, and F. Simoni, "Remarks on the temperature dependence of the optical Friedericksz transition," Opt. Commun. 76, 261-264 (1990).
[CrossRef]

Opt. Express

Opt. Lett

I. C. Khoo, S. Slussarenko, B. D. Guenther, M.-Y. Shih, P. Chen, and W. V. Wood, "Optically induced space charge fields, dc voltage, and extraordinarily large nonlinearity in dye-doped nematic liquid crystals," Opt. Lett,  23, 253-255 (1998).
[CrossRef]

Opt. Lett.

Phys. Rev. A

E. Braun, L. P. Faucheux, and A. Libchaber, "Strong self-focusing in nematic liquid crystals," Phys. Rev. A 48, 611-622 (1993).
[CrossRef] [PubMed]

Phys. Rev. E

M. Peccianti and G. Assanto, "Nematic liquid crystals: A suitable medium for self-confinement of coherent and incoherent light," Phys. Rev. E,  65, 035603-4 (2002).
[CrossRef]

Phys. Rev. Lett.

D. Durbin, S. M. Arakelian, and Y. R. Shen, "Optical-field-induced birefringence and Freedericksz transition in a nematic liquid crystal," Phys. Rev. Lett. 47, 1411-1414 (1981).
[CrossRef]

Phys. Today

M. Segev and G. Stegeman, "Self-trapping of optical beams: spatial solitons," Phys. Today 51, 42-48 (1998).
[CrossRef]

Other

F. Simoni, Nonlinear Optical Properties of Liquid Crystals and Polymer Dispersed Liquid Crystals (World Scientific, Singapore, 1997).

I. C. Khoo and S. T. Wu, Optics and Nonlinear Optics of Liquid Crystals (World Scientific, Singapore, 1993).

S. Elston and R. Sambles, The Optics of Thermotropic Liquid Crystal (Taylor & Francis, London, 1998).

P. Yeh and C. Gu, Optics of Liquid Crystal Displays (Wiley Interscience, New York, 1999).

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (6)

Fig. 1.
Fig. 1.

Schematic drawing of experimental setup. P: polarizer, M: mirror, λ/2: half-wave plate, L: Lens, LC: liquid crystal.

Fig. 2.
Fig. 2.

The temporal sequence of beam evolutions in the NLCs cell at the temperature close to the critical point (T=34° C). Pumping time t=0, 1.5, 3.0, 5.0, 6.0 seconds, respectively.

Fig. 3.
Fig. 3.

Conoscopic patterns of the probe beam which passes through the cell in the route of the pump beam at T=34° C. Figures 3(a)–3(f) were conoscopic patterns that changed with time, corresponding to Figs. 2(a)–2(f), respectively.

Fig. 4.
Fig. 4.

(a). Inferred LC configuration at the focus region (y-z plane) where the molecules has been reoriented by the pump beam in the NLC cell at 34° C. (b). The coincident part of the conoscopic pattern in Fig. 3(c).

Fig. 5.
Fig. 5.

(a). Inferred LC configuration at two domains (y-z plane) where the molecules has been reoriented by the pump beam in the NLC cell at 34° C. (b). The coincident part of the conoscopic pattern in Fig. 3(c).

Fig. 6.
Fig. 6.

(a). Inferred the molecular competition in orientation at the intersection of two domains (y-z plane). (b). The coincident part of the conoscopic pattern in Fig. 3(d).

Metrics