Abstract

An experimental study of the photo-isomerization dynamics in dye-doped nematic crystals is reported, which shows that, when the sample is illuminated by a Gaussian beam, and for high enough input power, a transition from the nematic to the isotropic phase takes place in the illuminated area. The two phases are spatially connected via a front propagating outward from the center of the beam and following the local intensity profile and thus inducing a photo-controlled optical aperture. The optical intensity and temperature fields on the sample follow the same dynamical profile. The front dynamics is described by a phenomenological bi-stable model with an inhomogeneous control parameter, directly related to the beam intensity profile.

© 2014 Optical Society of America

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  1. I. C. Khoo, Liquid Crystals, 2nd ed. (Wiley, 2007).
  2. P. Yeh and C. Gu, Optics of Liquid Crystal Displays (Wiley, 1990).
  3. N. V. Tabiryan, A. V. Sukhov, and B. Ya. Zel’dovich, Mol. Cryst. Liq. Cryst. 136, 1 (1986).
    [CrossRef]
  4. I. C. Khoo, Phys. Rep. 471, 221 (2009).
    [CrossRef]
  5. I. Jánossy and A. D. Lloyd, Mol. Cryst. Liq. Cryst. 203, 77 (1991).
    [CrossRef]
  6. I. C. Khoo, S. Slussarenko, B. D. Guenther, M. Y. Shih, P. Chen, and W. V. Wood, Opt. Lett. 23, 253 (1998).
    [CrossRef]
  7. I. Jánossy and L. Szabados, J. Nonlinear Opt. Phys. 7, 539 (1998).
    [CrossRef]
  8. A. Shishido, O. Tsutsumi, A. Kanazawa, T. Shiono, T. Ikeda, and N. Tamai, J. Am. Chem. Soc. 119, 7791 (1997).
    [CrossRef]
  9. A. G.-S. Chen and D. J. Brady, Opt. Lett. 17, 1231 (1992).
    [CrossRef]
  10. S. M. Morris, M. M. Qasim, K. T. Cheng, F. Castles, D.-H. Ko, D. J. Gardiner, S. Nosheen, T. D. Wilkinson, H. J. Coles, C. Burgess, and L. Hill, Appl. Phys. Lett. 103, 101105 (2013).
    [CrossRef]
  11. A. G. Chen and D. J. Brady, Opt. Lett. 17, 441 (1992).
    [CrossRef]
  12. T. Ikeda and O. Tsutsumi, Science 268, 1873 (1995).
    [CrossRef]
  13. S. G. Lukishova, N. Lepeshkin, R. W. Boyd, and K. L. Marshall, Mol. Cryst. Liq. Cryst. 453, 393 (2006).
    [CrossRef]
  14. M. Y. Shih, A. Shishido, P. H. Chen, M. V. Wood, and I. C. Khoo, Opt. Lett. 25, 978 (2000).
    [CrossRef]
  15. D. Wei, A. Iljin, Z. Cai, S. Residori, and U. Bortolozzo, Opt. Lett. 37, 734 (2012).
    [CrossRef]
  16. D. Wei, S. Residori, and U. Bortolozzo, Opt. Lett. 37, 4684 (2012).
    [CrossRef]
  17. D. Wei, U. Bortolozzo, J. P. Huignard, and S. Residori, Opt. Express 21, 19544 (2013).
    [CrossRef]
  18. L. Ziyang, J. Shi, X. Ying, L. P. Shi, W. Jian, Z. X. Liang, and Z. R. Qiu, Phys. Lett. A 270, 326 (2000).
    [CrossRef]
  19. Y. Pomeau, Physica D 23, 3 (1986).
    [CrossRef]
  20. R. E. Goldstein, G. H. Gunaratne, L. Gil, and P. Coullet, Phys. Rev. A 43, 6700 (1991).
    [CrossRef]
  21. M. G. Clerc, S. Residori, and C. S. Riera, Phys. Rev. E 63, 060701(R) (2001).
    [CrossRef]
  22. S. Chandrasekhar and N. V. Madhusudana, Appl. Spectrosc. Rev. 6, 189 (1972).
    [CrossRef]
  23. F. Haudin, R. G. Elías, R. G. Rojas, U. Bortolozzo, M. G. Clerc, and S. Residori, Phys. Rev. Lett. 103, 128003 (2009).
    [CrossRef]
  24. F. Haudin, R. G. Elías, R. G. Rojas, U. Bortolozzo, M. G. Clerc, and S. Residori, Phys. Rev. E 81, 056203 (2010).
    [CrossRef]
  25. V. Odent, “Localisation spatiale de la lumière dans des systèmes à cristaux liquides,” Ph.D. thesis (Université de Lille 1, 2012), http://www.theses.fr/2012LIL10046 .
  26. L. D. Landau and E. M. Lifshitz, Statistical Physics, 5th ed. (Butterworth-Heinemann, 1980).
  27. D. H. Ballard, Pattern Recogn. 13, 111 (1981).
    [CrossRef]
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    [CrossRef]

2013 (2)

S. M. Morris, M. M. Qasim, K. T. Cheng, F. Castles, D.-H. Ko, D. J. Gardiner, S. Nosheen, T. D. Wilkinson, H. J. Coles, C. Burgess, and L. Hill, Appl. Phys. Lett. 103, 101105 (2013).
[CrossRef]

D. Wei, U. Bortolozzo, J. P. Huignard, and S. Residori, Opt. Express 21, 19544 (2013).
[CrossRef]

2012 (2)

2010 (1)

F. Haudin, R. G. Elías, R. G. Rojas, U. Bortolozzo, M. G. Clerc, and S. Residori, Phys. Rev. E 81, 056203 (2010).
[CrossRef]

2009 (2)

F. Haudin, R. G. Elías, R. G. Rojas, U. Bortolozzo, M. G. Clerc, and S. Residori, Phys. Rev. Lett. 103, 128003 (2009).
[CrossRef]

I. C. Khoo, Phys. Rep. 471, 221 (2009).
[CrossRef]

2006 (1)

S. G. Lukishova, N. Lepeshkin, R. W. Boyd, and K. L. Marshall, Mol. Cryst. Liq. Cryst. 453, 393 (2006).
[CrossRef]

2001 (1)

M. G. Clerc, S. Residori, and C. S. Riera, Phys. Rev. E 63, 060701(R) (2001).
[CrossRef]

2000 (2)

M. Y. Shih, A. Shishido, P. H. Chen, M. V. Wood, and I. C. Khoo, Opt. Lett. 25, 978 (2000).
[CrossRef]

L. Ziyang, J. Shi, X. Ying, L. P. Shi, W. Jian, Z. X. Liang, and Z. R. Qiu, Phys. Lett. A 270, 326 (2000).
[CrossRef]

1998 (2)

1997 (1)

A. Shishido, O. Tsutsumi, A. Kanazawa, T. Shiono, T. Ikeda, and N. Tamai, J. Am. Chem. Soc. 119, 7791 (1997).
[CrossRef]

1995 (1)

T. Ikeda and O. Tsutsumi, Science 268, 1873 (1995).
[CrossRef]

1992 (2)

1991 (2)

I. Jánossy and A. D. Lloyd, Mol. Cryst. Liq. Cryst. 203, 77 (1991).
[CrossRef]

R. E. Goldstein, G. H. Gunaratne, L. Gil, and P. Coullet, Phys. Rev. A 43, 6700 (1991).
[CrossRef]

1986 (2)

N. V. Tabiryan, A. V. Sukhov, and B. Ya. Zel’dovich, Mol. Cryst. Liq. Cryst. 136, 1 (1986).
[CrossRef]

Y. Pomeau, Physica D 23, 3 (1986).
[CrossRef]

1981 (1)

D. H. Ballard, Pattern Recogn. 13, 111 (1981).
[CrossRef]

1977 (1)

M. Lax, J. Appl. Phys. 48, 3919 (1977).
[CrossRef]

1972 (1)

S. Chandrasekhar and N. V. Madhusudana, Appl. Spectrosc. Rev. 6, 189 (1972).
[CrossRef]

Ballard, D. H.

D. H. Ballard, Pattern Recogn. 13, 111 (1981).
[CrossRef]

Bortolozzo, U.

D. Wei, U. Bortolozzo, J. P. Huignard, and S. Residori, Opt. Express 21, 19544 (2013).
[CrossRef]

D. Wei, A. Iljin, Z. Cai, S. Residori, and U. Bortolozzo, Opt. Lett. 37, 734 (2012).
[CrossRef]

D. Wei, S. Residori, and U. Bortolozzo, Opt. Lett. 37, 4684 (2012).
[CrossRef]

F. Haudin, R. G. Elías, R. G. Rojas, U. Bortolozzo, M. G. Clerc, and S. Residori, Phys. Rev. E 81, 056203 (2010).
[CrossRef]

F. Haudin, R. G. Elías, R. G. Rojas, U. Bortolozzo, M. G. Clerc, and S. Residori, Phys. Rev. Lett. 103, 128003 (2009).
[CrossRef]

Boyd, R. W.

S. G. Lukishova, N. Lepeshkin, R. W. Boyd, and K. L. Marshall, Mol. Cryst. Liq. Cryst. 453, 393 (2006).
[CrossRef]

Brady, D. J.

Burgess, C.

S. M. Morris, M. M. Qasim, K. T. Cheng, F. Castles, D.-H. Ko, D. J. Gardiner, S. Nosheen, T. D. Wilkinson, H. J. Coles, C. Burgess, and L. Hill, Appl. Phys. Lett. 103, 101105 (2013).
[CrossRef]

Cai, Z.

Castles, F.

S. M. Morris, M. M. Qasim, K. T. Cheng, F. Castles, D.-H. Ko, D. J. Gardiner, S. Nosheen, T. D. Wilkinson, H. J. Coles, C. Burgess, and L. Hill, Appl. Phys. Lett. 103, 101105 (2013).
[CrossRef]

Chandrasekhar, S.

S. Chandrasekhar and N. V. Madhusudana, Appl. Spectrosc. Rev. 6, 189 (1972).
[CrossRef]

Chen, A. G.

Chen, A. G.-S.

Chen, P.

Chen, P. H.

Cheng, K. T.

S. M. Morris, M. M. Qasim, K. T. Cheng, F. Castles, D.-H. Ko, D. J. Gardiner, S. Nosheen, T. D. Wilkinson, H. J. Coles, C. Burgess, and L. Hill, Appl. Phys. Lett. 103, 101105 (2013).
[CrossRef]

Clerc, M. G.

F. Haudin, R. G. Elías, R. G. Rojas, U. Bortolozzo, M. G. Clerc, and S. Residori, Phys. Rev. E 81, 056203 (2010).
[CrossRef]

F. Haudin, R. G. Elías, R. G. Rojas, U. Bortolozzo, M. G. Clerc, and S. Residori, Phys. Rev. Lett. 103, 128003 (2009).
[CrossRef]

M. G. Clerc, S. Residori, and C. S. Riera, Phys. Rev. E 63, 060701(R) (2001).
[CrossRef]

Coles, H. J.

S. M. Morris, M. M. Qasim, K. T. Cheng, F. Castles, D.-H. Ko, D. J. Gardiner, S. Nosheen, T. D. Wilkinson, H. J. Coles, C. Burgess, and L. Hill, Appl. Phys. Lett. 103, 101105 (2013).
[CrossRef]

Coullet, P.

R. E. Goldstein, G. H. Gunaratne, L. Gil, and P. Coullet, Phys. Rev. A 43, 6700 (1991).
[CrossRef]

Elías, R. G.

F. Haudin, R. G. Elías, R. G. Rojas, U. Bortolozzo, M. G. Clerc, and S. Residori, Phys. Rev. E 81, 056203 (2010).
[CrossRef]

F. Haudin, R. G. Elías, R. G. Rojas, U. Bortolozzo, M. G. Clerc, and S. Residori, Phys. Rev. Lett. 103, 128003 (2009).
[CrossRef]

Gardiner, D. J.

S. M. Morris, M. M. Qasim, K. T. Cheng, F. Castles, D.-H. Ko, D. J. Gardiner, S. Nosheen, T. D. Wilkinson, H. J. Coles, C. Burgess, and L. Hill, Appl. Phys. Lett. 103, 101105 (2013).
[CrossRef]

Gil, L.

R. E. Goldstein, G. H. Gunaratne, L. Gil, and P. Coullet, Phys. Rev. A 43, 6700 (1991).
[CrossRef]

Goldstein, R. E.

R. E. Goldstein, G. H. Gunaratne, L. Gil, and P. Coullet, Phys. Rev. A 43, 6700 (1991).
[CrossRef]

Gu, C.

P. Yeh and C. Gu, Optics of Liquid Crystal Displays (Wiley, 1990).

Guenther, B. D.

Gunaratne, G. H.

R. E. Goldstein, G. H. Gunaratne, L. Gil, and P. Coullet, Phys. Rev. A 43, 6700 (1991).
[CrossRef]

Haudin, F.

F. Haudin, R. G. Elías, R. G. Rojas, U. Bortolozzo, M. G. Clerc, and S. Residori, Phys. Rev. E 81, 056203 (2010).
[CrossRef]

F. Haudin, R. G. Elías, R. G. Rojas, U. Bortolozzo, M. G. Clerc, and S. Residori, Phys. Rev. Lett. 103, 128003 (2009).
[CrossRef]

Hill, L.

S. M. Morris, M. M. Qasim, K. T. Cheng, F. Castles, D.-H. Ko, D. J. Gardiner, S. Nosheen, T. D. Wilkinson, H. J. Coles, C. Burgess, and L. Hill, Appl. Phys. Lett. 103, 101105 (2013).
[CrossRef]

Huignard, J. P.

Ikeda, T.

A. Shishido, O. Tsutsumi, A. Kanazawa, T. Shiono, T. Ikeda, and N. Tamai, J. Am. Chem. Soc. 119, 7791 (1997).
[CrossRef]

T. Ikeda and O. Tsutsumi, Science 268, 1873 (1995).
[CrossRef]

Iljin, A.

Jánossy, I.

I. Jánossy and L. Szabados, J. Nonlinear Opt. Phys. 7, 539 (1998).
[CrossRef]

I. Jánossy and A. D. Lloyd, Mol. Cryst. Liq. Cryst. 203, 77 (1991).
[CrossRef]

Jian, W.

L. Ziyang, J. Shi, X. Ying, L. P. Shi, W. Jian, Z. X. Liang, and Z. R. Qiu, Phys. Lett. A 270, 326 (2000).
[CrossRef]

Kanazawa, A.

A. Shishido, O. Tsutsumi, A. Kanazawa, T. Shiono, T. Ikeda, and N. Tamai, J. Am. Chem. Soc. 119, 7791 (1997).
[CrossRef]

Khoo, I. C.

Ko, D.-H.

S. M. Morris, M. M. Qasim, K. T. Cheng, F. Castles, D.-H. Ko, D. J. Gardiner, S. Nosheen, T. D. Wilkinson, H. J. Coles, C. Burgess, and L. Hill, Appl. Phys. Lett. 103, 101105 (2013).
[CrossRef]

Landau, L. D.

L. D. Landau and E. M. Lifshitz, Statistical Physics, 5th ed. (Butterworth-Heinemann, 1980).

Lax, M.

M. Lax, J. Appl. Phys. 48, 3919 (1977).
[CrossRef]

Lepeshkin, N.

S. G. Lukishova, N. Lepeshkin, R. W. Boyd, and K. L. Marshall, Mol. Cryst. Liq. Cryst. 453, 393 (2006).
[CrossRef]

Liang, Z. X.

L. Ziyang, J. Shi, X. Ying, L. P. Shi, W. Jian, Z. X. Liang, and Z. R. Qiu, Phys. Lett. A 270, 326 (2000).
[CrossRef]

Lifshitz, E. M.

L. D. Landau and E. M. Lifshitz, Statistical Physics, 5th ed. (Butterworth-Heinemann, 1980).

Lloyd, A. D.

I. Jánossy and A. D. Lloyd, Mol. Cryst. Liq. Cryst. 203, 77 (1991).
[CrossRef]

Lukishova, S. G.

S. G. Lukishova, N. Lepeshkin, R. W. Boyd, and K. L. Marshall, Mol. Cryst. Liq. Cryst. 453, 393 (2006).
[CrossRef]

Madhusudana, N. V.

S. Chandrasekhar and N. V. Madhusudana, Appl. Spectrosc. Rev. 6, 189 (1972).
[CrossRef]

Marshall, K. L.

S. G. Lukishova, N. Lepeshkin, R. W. Boyd, and K. L. Marshall, Mol. Cryst. Liq. Cryst. 453, 393 (2006).
[CrossRef]

Morris, S. M.

S. M. Morris, M. M. Qasim, K. T. Cheng, F. Castles, D.-H. Ko, D. J. Gardiner, S. Nosheen, T. D. Wilkinson, H. J. Coles, C. Burgess, and L. Hill, Appl. Phys. Lett. 103, 101105 (2013).
[CrossRef]

Nosheen, S.

S. M. Morris, M. M. Qasim, K. T. Cheng, F. Castles, D.-H. Ko, D. J. Gardiner, S. Nosheen, T. D. Wilkinson, H. J. Coles, C. Burgess, and L. Hill, Appl. Phys. Lett. 103, 101105 (2013).
[CrossRef]

Odent, V.

V. Odent, “Localisation spatiale de la lumière dans des systèmes à cristaux liquides,” Ph.D. thesis (Université de Lille 1, 2012), http://www.theses.fr/2012LIL10046 .

Pomeau, Y.

Y. Pomeau, Physica D 23, 3 (1986).
[CrossRef]

Qasim, M. M.

S. M. Morris, M. M. Qasim, K. T. Cheng, F. Castles, D.-H. Ko, D. J. Gardiner, S. Nosheen, T. D. Wilkinson, H. J. Coles, C. Burgess, and L. Hill, Appl. Phys. Lett. 103, 101105 (2013).
[CrossRef]

Qiu, Z. R.

L. Ziyang, J. Shi, X. Ying, L. P. Shi, W. Jian, Z. X. Liang, and Z. R. Qiu, Phys. Lett. A 270, 326 (2000).
[CrossRef]

Residori, S.

D. Wei, U. Bortolozzo, J. P. Huignard, and S. Residori, Opt. Express 21, 19544 (2013).
[CrossRef]

D. Wei, A. Iljin, Z. Cai, S. Residori, and U. Bortolozzo, Opt. Lett. 37, 734 (2012).
[CrossRef]

D. Wei, S. Residori, and U. Bortolozzo, Opt. Lett. 37, 4684 (2012).
[CrossRef]

F. Haudin, R. G. Elías, R. G. Rojas, U. Bortolozzo, M. G. Clerc, and S. Residori, Phys. Rev. E 81, 056203 (2010).
[CrossRef]

F. Haudin, R. G. Elías, R. G. Rojas, U. Bortolozzo, M. G. Clerc, and S. Residori, Phys. Rev. Lett. 103, 128003 (2009).
[CrossRef]

M. G. Clerc, S. Residori, and C. S. Riera, Phys. Rev. E 63, 060701(R) (2001).
[CrossRef]

Riera, C. S.

M. G. Clerc, S. Residori, and C. S. Riera, Phys. Rev. E 63, 060701(R) (2001).
[CrossRef]

Rojas, R. G.

F. Haudin, R. G. Elías, R. G. Rojas, U. Bortolozzo, M. G. Clerc, and S. Residori, Phys. Rev. E 81, 056203 (2010).
[CrossRef]

F. Haudin, R. G. Elías, R. G. Rojas, U. Bortolozzo, M. G. Clerc, and S. Residori, Phys. Rev. Lett. 103, 128003 (2009).
[CrossRef]

Shi, J.

L. Ziyang, J. Shi, X. Ying, L. P. Shi, W. Jian, Z. X. Liang, and Z. R. Qiu, Phys. Lett. A 270, 326 (2000).
[CrossRef]

Shi, L. P.

L. Ziyang, J. Shi, X. Ying, L. P. Shi, W. Jian, Z. X. Liang, and Z. R. Qiu, Phys. Lett. A 270, 326 (2000).
[CrossRef]

Shih, M. Y.

Shiono, T.

A. Shishido, O. Tsutsumi, A. Kanazawa, T. Shiono, T. Ikeda, and N. Tamai, J. Am. Chem. Soc. 119, 7791 (1997).
[CrossRef]

Shishido, A.

M. Y. Shih, A. Shishido, P. H. Chen, M. V. Wood, and I. C. Khoo, Opt. Lett. 25, 978 (2000).
[CrossRef]

A. Shishido, O. Tsutsumi, A. Kanazawa, T. Shiono, T. Ikeda, and N. Tamai, J. Am. Chem. Soc. 119, 7791 (1997).
[CrossRef]

Slussarenko, S.

Sukhov, A. V.

N. V. Tabiryan, A. V. Sukhov, and B. Ya. Zel’dovich, Mol. Cryst. Liq. Cryst. 136, 1 (1986).
[CrossRef]

Szabados, L.

I. Jánossy and L. Szabados, J. Nonlinear Opt. Phys. 7, 539 (1998).
[CrossRef]

Tabiryan, N. V.

N. V. Tabiryan, A. V. Sukhov, and B. Ya. Zel’dovich, Mol. Cryst. Liq. Cryst. 136, 1 (1986).
[CrossRef]

Tamai, N.

A. Shishido, O. Tsutsumi, A. Kanazawa, T. Shiono, T. Ikeda, and N. Tamai, J. Am. Chem. Soc. 119, 7791 (1997).
[CrossRef]

Tsutsumi, O.

A. Shishido, O. Tsutsumi, A. Kanazawa, T. Shiono, T. Ikeda, and N. Tamai, J. Am. Chem. Soc. 119, 7791 (1997).
[CrossRef]

T. Ikeda and O. Tsutsumi, Science 268, 1873 (1995).
[CrossRef]

Wei, D.

Wilkinson, T. D.

S. M. Morris, M. M. Qasim, K. T. Cheng, F. Castles, D.-H. Ko, D. J. Gardiner, S. Nosheen, T. D. Wilkinson, H. J. Coles, C. Burgess, and L. Hill, Appl. Phys. Lett. 103, 101105 (2013).
[CrossRef]

Wood, M. V.

Wood, W. V.

Yeh, P.

P. Yeh and C. Gu, Optics of Liquid Crystal Displays (Wiley, 1990).

Ying, X.

L. Ziyang, J. Shi, X. Ying, L. P. Shi, W. Jian, Z. X. Liang, and Z. R. Qiu, Phys. Lett. A 270, 326 (2000).
[CrossRef]

Zel’dovich, B. Ya.

N. V. Tabiryan, A. V. Sukhov, and B. Ya. Zel’dovich, Mol. Cryst. Liq. Cryst. 136, 1 (1986).
[CrossRef]

Ziyang, L.

L. Ziyang, J. Shi, X. Ying, L. P. Shi, W. Jian, Z. X. Liang, and Z. R. Qiu, Phys. Lett. A 270, 326 (2000).
[CrossRef]

Appl. Phys. Lett. (1)

S. M. Morris, M. M. Qasim, K. T. Cheng, F. Castles, D.-H. Ko, D. J. Gardiner, S. Nosheen, T. D. Wilkinson, H. J. Coles, C. Burgess, and L. Hill, Appl. Phys. Lett. 103, 101105 (2013).
[CrossRef]

Appl. Spectrosc. Rev. (1)

S. Chandrasekhar and N. V. Madhusudana, Appl. Spectrosc. Rev. 6, 189 (1972).
[CrossRef]

J. Am. Chem. Soc. (1)

A. Shishido, O. Tsutsumi, A. Kanazawa, T. Shiono, T. Ikeda, and N. Tamai, J. Am. Chem. Soc. 119, 7791 (1997).
[CrossRef]

J. Appl. Phys. (1)

M. Lax, J. Appl. Phys. 48, 3919 (1977).
[CrossRef]

J. Nonlinear Opt. Phys. (1)

I. Jánossy and L. Szabados, J. Nonlinear Opt. Phys. 7, 539 (1998).
[CrossRef]

Mol. Cryst. Liq. Cryst. (3)

I. Jánossy and A. D. Lloyd, Mol. Cryst. Liq. Cryst. 203, 77 (1991).
[CrossRef]

N. V. Tabiryan, A. V. Sukhov, and B. Ya. Zel’dovich, Mol. Cryst. Liq. Cryst. 136, 1 (1986).
[CrossRef]

S. G. Lukishova, N. Lepeshkin, R. W. Boyd, and K. L. Marshall, Mol. Cryst. Liq. Cryst. 453, 393 (2006).
[CrossRef]

Opt. Express (1)

Opt. Lett. (6)

Pattern Recogn. (1)

D. H. Ballard, Pattern Recogn. 13, 111 (1981).
[CrossRef]

Phys. Lett. A (1)

L. Ziyang, J. Shi, X. Ying, L. P. Shi, W. Jian, Z. X. Liang, and Z. R. Qiu, Phys. Lett. A 270, 326 (2000).
[CrossRef]

Phys. Rep. (1)

I. C. Khoo, Phys. Rep. 471, 221 (2009).
[CrossRef]

Phys. Rev. A (1)

R. E. Goldstein, G. H. Gunaratne, L. Gil, and P. Coullet, Phys. Rev. A 43, 6700 (1991).
[CrossRef]

Phys. Rev. E (2)

M. G. Clerc, S. Residori, and C. S. Riera, Phys. Rev. E 63, 060701(R) (2001).
[CrossRef]

F. Haudin, R. G. Elías, R. G. Rojas, U. Bortolozzo, M. G. Clerc, and S. Residori, Phys. Rev. E 81, 056203 (2010).
[CrossRef]

Phys. Rev. Lett. (1)

F. Haudin, R. G. Elías, R. G. Rojas, U. Bortolozzo, M. G. Clerc, and S. Residori, Phys. Rev. Lett. 103, 128003 (2009).
[CrossRef]

Physica D (1)

Y. Pomeau, Physica D 23, 3 (1986).
[CrossRef]

Science (1)

T. Ikeda and O. Tsutsumi, Science 268, 1873 (1995).
[CrossRef]

Other (4)

I. C. Khoo, Liquid Crystals, 2nd ed. (Wiley, 2007).

P. Yeh and C. Gu, Optics of Liquid Crystal Displays (Wiley, 1990).

V. Odent, “Localisation spatiale de la lumière dans des systèmes à cristaux liquides,” Ph.D. thesis (Université de Lille 1, 2012), http://www.theses.fr/2012LIL10046 .

L. D. Landau and E. M. Lifshitz, Statistical Physics, 5th ed. (Butterworth-Heinemann, 1980).

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Figures (4)

Fig. 1.
Fig. 1.

Photo-controlled optical aperture. (a) Schematic sketch of the experimental setup. L1 and L2, plano-convex lenses; DDLC, dye-doped liquid crystal cell; P, polarizer along x axis; L3, imaging lens; TC:, infrared thermal camera; CCD, CCD camera. (b)–(e) Experimental smoothed snapshots for P0=350mW and w=3.4mm (I0=1.93W/cm2) at 55, 65, 125, and 500 s, respectively. (f) Sample transmissivity T as a function of the input power P0: □ P0 increasing and ⋄ P0 decreasing.

Fig. 2.
Fig. 2.

One-dimensional characterization of the optical aperture dilation. (a) Spatiotemporal evolution of the transmissivity T taken along the horizontal diametrical line across the aperture of Figs. 1(b)1(e), where x=0 corresponds to the center of the Gaussian beam forcing the DDLC sample. (b) Evolution of the front core position: ▪ experimental points, – fit using the hyperbolic tangent function derived from model (1). (c) Final front position as a function of P0: ♦ numerical points, – numerical fit, • experimental points, – experimental fit. wnum=90, wexp=3.4mm.

Fig. 3.
Fig. 3.

Two-dimensional characterization of the aperture dilation. (a) Optical aperture: iso-surface for I(r⃗,t)=25 (gray level) recorded with the CCD camera. (b) Thermal aperture: iso-surface for θ(r⃗,t)=36° recorded with the thermal camera (P0=1W, w=5.5mm).

Fig. 4.
Fig. 4.

Schematic phase diagram of nematic–isotropic phase transition. Optical power needed for the photo-isomerization induced nematic-to-isotropic transition to occur as a function of the dye dopant concentration; squares are experimental measurements corresponding to phase transitions, the dark region represents the transition zone between the nematic and the isotropic phases (w=3.4mm).

Equations (2)

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ut=η(x)+uu3+2ux2,
2(x0w)2=ln(P0)ln(PMax).

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