Abstract

We investigate, for the first time to our knowledge, the discrete propagation of near-infrared light in a voltage-controlled array of channel waveguides in undoped nematic liquid crystals under planar anchoring conditions. This novel geometry enables us to drive the system from one-dimensional bulk diffraction to discrete propagation and, for larger excitations, to discrete spatial solitons, or nematicons. The observed phenomena are adequately described by a scalar model that encompasses the voltage-dependent reorientational response of the material.

© 2004 Optical Society of America

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  1. F. Lederer, S. Darmanyan, and A. Kobyakov, in Spatial Solitons, S. Trillo and W. Torruellas, eds. (Wiley, New York, 2002), pp. 269–292.
  2. A. A. Sukhorukov, Y. S. Kivshar, H. S. Eisenberg, and Y. Silberberg, IEEE J. Quantum Electron. 39, 31 (2003).
    [CrossRef]
  3. D. N. Christodoulides and R. I. Joseph, Opt. Lett. 13, 794 (1988).
    [CrossRef] [PubMed]
  4. H. S. Eisenberg, Y. Silberberg, R. Morandotti, A. R. Boyd, and J. S. Aitchison, Phys. Rev. Lett. 81, 3383 (1998).
    [CrossRef]
  5. H. S. Eisenberg, Y. Silberberg, R. Morandotti, and J. S. Aitchison, Phys. Rev. Lett. 85, 1863 (2000).
    [CrossRef] [PubMed]
  6. F. Lederer and Y. Silberberg, Opt. Photon. News 13(2), 49 (2002).
    [CrossRef]
  7. D. N. Christodoulides, F. Lederer, and Y. Silberberg, Nature 424, 817 (2003).
    [CrossRef] [PubMed]
  8. A. C. Scott and L. MacNeil, Phys. Lett. A 98, 87 (1983).
    [CrossRef]
  9. R. Schiek, R. I. Iwanow, G. I. Stegeman, T. Pertsch, F. Lederer, Y. Min, and W. Sohler, in IEEE LEOS 2003 Annual Meeting (Institute of Electrical and Electronics Engineers, Piscataway, N.J., 2003), postdeadline paper 1.4.
  10. N. K. Efremidis, S. Sears, D. N. Christodoulides, J. W. Fleischer, and M. Segev, Phys. Rev. E 66, 046602 (2002).
    [CrossRef]
  11. J. W. Fleisher, M. Segev, N. K. Efremidis, and D. N. Christodoulides, Nature 422, 147 (2003).
    [CrossRef]
  12. J. W. Fleisher, T. Carmon, M. Segev, N. K. Efremidis, and D. N. Christodoulides, Phys. Rev. Lett. 90, 023902 (2003).
    [CrossRef]
  13. D. Neshev, E. Ostrovskaya, Y. Kivshar, and W. Krolikowski, Opt. Lett. 28, 710 (2003).
    [CrossRef] [PubMed]
  14. D. Mandelik, H. S. Eisenberg, Y. Silberberg, R. Morandotti, and J. S. Aitchison, Phys. Rev. Lett. 90, 53902 (2003).
    [CrossRef]
  15. D. N. Christodoulides and E. D. Eugenieva, Phys. Rev. Lett. 87, 233901 (2001).
    [CrossRef]
  16. E. Braun, L. P. Faucheux, and A. Libchaber, Phys. Rev. A 48, 611 (1993).
    [CrossRef] [PubMed]
  17. M. Warenghem, J. F. Henninot, and G. Abbate, Mol. Cryst. Liq. Cryst. 320, 207 (1998).
    [CrossRef]
  18. M. Karpierz, Phys. Rev. E 66, 036603 (2002).
    [CrossRef]
  19. M. Peccianti, G. Assanto, A. de Luca, C. Umeton, and I. C. Khoo, Appl. Phys. Lett. 77, 7 (2000).
    [CrossRef]
  20. M. Peccianti and G. Assanto, Phys. Rev. E 65, 035603 (2002).
    [CrossRef]
  21. G. Assanto and M. Peccianti, IEEE J. Quantum Electron. 39, 13 (2003).
    [CrossRef]
  22. M. Peccianti, C. Conti, G. Assanto, A. De Luca, and C. Umeton, J. Nonlin. Opt. Phys. Mater. 12, 525 (2003).
    [CrossRef]
  23. M. Peccianti, K. A. Brzdąkiewicz, and G. Assanto, Opt. Lett. 27, 1460 (2002).
    [CrossRef]
  24. D. A. Dumm, A. Fukuda, and G. R. Luckhurst, Physical Properties of Liquid Crystals: Nematics (INSPEC, London, 2001).
  25. G. Assanto, M. Peccianti, and C. Conti, Opt. Photon. News 14(2), 44 (2003).
    [CrossRef]
  26. C. Conti, M. Peccianti, and G. Assanto, Phys. Rev. Lett. 91, 073901 (2003).
    [CrossRef]

2003 (10)

A. A. Sukhorukov, Y. S. Kivshar, H. S. Eisenberg, and Y. Silberberg, IEEE J. Quantum Electron. 39, 31 (2003).
[CrossRef]

D. N. Christodoulides, F. Lederer, and Y. Silberberg, Nature 424, 817 (2003).
[CrossRef] [PubMed]

J. W. Fleisher, M. Segev, N. K. Efremidis, and D. N. Christodoulides, Nature 422, 147 (2003).
[CrossRef]

J. W. Fleisher, T. Carmon, M. Segev, N. K. Efremidis, and D. N. Christodoulides, Phys. Rev. Lett. 90, 023902 (2003).
[CrossRef]

D. Neshev, E. Ostrovskaya, Y. Kivshar, and W. Krolikowski, Opt. Lett. 28, 710 (2003).
[CrossRef] [PubMed]

D. Mandelik, H. S. Eisenberg, Y. Silberberg, R. Morandotti, and J. S. Aitchison, Phys. Rev. Lett. 90, 53902 (2003).
[CrossRef]

G. Assanto and M. Peccianti, IEEE J. Quantum Electron. 39, 13 (2003).
[CrossRef]

M. Peccianti, C. Conti, G. Assanto, A. De Luca, and C. Umeton, J. Nonlin. Opt. Phys. Mater. 12, 525 (2003).
[CrossRef]

G. Assanto, M. Peccianti, and C. Conti, Opt. Photon. News 14(2), 44 (2003).
[CrossRef]

C. Conti, M. Peccianti, and G. Assanto, Phys. Rev. Lett. 91, 073901 (2003).
[CrossRef]

2002 (5)

M. Peccianti, K. A. Brzdąkiewicz, and G. Assanto, Opt. Lett. 27, 1460 (2002).
[CrossRef]

M. Karpierz, Phys. Rev. E 66, 036603 (2002).
[CrossRef]

M. Peccianti and G. Assanto, Phys. Rev. E 65, 035603 (2002).
[CrossRef]

F. Lederer and Y. Silberberg, Opt. Photon. News 13(2), 49 (2002).
[CrossRef]

N. K. Efremidis, S. Sears, D. N. Christodoulides, J. W. Fleischer, and M. Segev, Phys. Rev. E 66, 046602 (2002).
[CrossRef]

2001 (1)

D. N. Christodoulides and E. D. Eugenieva, Phys. Rev. Lett. 87, 233901 (2001).
[CrossRef]

2000 (2)

M. Peccianti, G. Assanto, A. de Luca, C. Umeton, and I. C. Khoo, Appl. Phys. Lett. 77, 7 (2000).
[CrossRef]

H. S. Eisenberg, Y. Silberberg, R. Morandotti, and J. S. Aitchison, Phys. Rev. Lett. 85, 1863 (2000).
[CrossRef] [PubMed]

1998 (2)

H. S. Eisenberg, Y. Silberberg, R. Morandotti, A. R. Boyd, and J. S. Aitchison, Phys. Rev. Lett. 81, 3383 (1998).
[CrossRef]

M. Warenghem, J. F. Henninot, and G. Abbate, Mol. Cryst. Liq. Cryst. 320, 207 (1998).
[CrossRef]

1993 (1)

E. Braun, L. P. Faucheux, and A. Libchaber, Phys. Rev. A 48, 611 (1993).
[CrossRef] [PubMed]

1988 (1)

1983 (1)

A. C. Scott and L. MacNeil, Phys. Lett. A 98, 87 (1983).
[CrossRef]

Abbate, G.

M. Warenghem, J. F. Henninot, and G. Abbate, Mol. Cryst. Liq. Cryst. 320, 207 (1998).
[CrossRef]

Aitchison, J. S.

D. Mandelik, H. S. Eisenberg, Y. Silberberg, R. Morandotti, and J. S. Aitchison, Phys. Rev. Lett. 90, 53902 (2003).
[CrossRef]

H. S. Eisenberg, Y. Silberberg, R. Morandotti, and J. S. Aitchison, Phys. Rev. Lett. 85, 1863 (2000).
[CrossRef] [PubMed]

H. S. Eisenberg, Y. Silberberg, R. Morandotti, A. R. Boyd, and J. S. Aitchison, Phys. Rev. Lett. 81, 3383 (1998).
[CrossRef]

Assanto, G.

G. Assanto and M. Peccianti, IEEE J. Quantum Electron. 39, 13 (2003).
[CrossRef]

M. Peccianti, C. Conti, G. Assanto, A. De Luca, and C. Umeton, J. Nonlin. Opt. Phys. Mater. 12, 525 (2003).
[CrossRef]

G. Assanto, M. Peccianti, and C. Conti, Opt. Photon. News 14(2), 44 (2003).
[CrossRef]

C. Conti, M. Peccianti, and G. Assanto, Phys. Rev. Lett. 91, 073901 (2003).
[CrossRef]

M. Peccianti, K. A. Brzdąkiewicz, and G. Assanto, Opt. Lett. 27, 1460 (2002).
[CrossRef]

M. Peccianti and G. Assanto, Phys. Rev. E 65, 035603 (2002).
[CrossRef]

M. Peccianti, G. Assanto, A. de Luca, C. Umeton, and I. C. Khoo, Appl. Phys. Lett. 77, 7 (2000).
[CrossRef]

Boyd, A. R.

H. S. Eisenberg, Y. Silberberg, R. Morandotti, A. R. Boyd, and J. S. Aitchison, Phys. Rev. Lett. 81, 3383 (1998).
[CrossRef]

Braun, E.

E. Braun, L. P. Faucheux, and A. Libchaber, Phys. Rev. A 48, 611 (1993).
[CrossRef] [PubMed]

Brzdakiewicz, K. A.

Carmon, T.

J. W. Fleisher, T. Carmon, M. Segev, N. K. Efremidis, and D. N. Christodoulides, Phys. Rev. Lett. 90, 023902 (2003).
[CrossRef]

Christodoulides, D. N.

J. W. Fleisher, T. Carmon, M. Segev, N. K. Efremidis, and D. N. Christodoulides, Phys. Rev. Lett. 90, 023902 (2003).
[CrossRef]

J. W. Fleisher, M. Segev, N. K. Efremidis, and D. N. Christodoulides, Nature 422, 147 (2003).
[CrossRef]

D. N. Christodoulides, F. Lederer, and Y. Silberberg, Nature 424, 817 (2003).
[CrossRef] [PubMed]

N. K. Efremidis, S. Sears, D. N. Christodoulides, J. W. Fleischer, and M. Segev, Phys. Rev. E 66, 046602 (2002).
[CrossRef]

D. N. Christodoulides and E. D. Eugenieva, Phys. Rev. Lett. 87, 233901 (2001).
[CrossRef]

D. N. Christodoulides and R. I. Joseph, Opt. Lett. 13, 794 (1988).
[CrossRef] [PubMed]

Conti, C.

G. Assanto, M. Peccianti, and C. Conti, Opt. Photon. News 14(2), 44 (2003).
[CrossRef]

C. Conti, M. Peccianti, and G. Assanto, Phys. Rev. Lett. 91, 073901 (2003).
[CrossRef]

M. Peccianti, C. Conti, G. Assanto, A. De Luca, and C. Umeton, J. Nonlin. Opt. Phys. Mater. 12, 525 (2003).
[CrossRef]

Darmanyan, S.

F. Lederer, S. Darmanyan, and A. Kobyakov, in Spatial Solitons, S. Trillo and W. Torruellas, eds. (Wiley, New York, 2002), pp. 269–292.

De Luca, A.

M. Peccianti, C. Conti, G. Assanto, A. De Luca, and C. Umeton, J. Nonlin. Opt. Phys. Mater. 12, 525 (2003).
[CrossRef]

M. Peccianti, G. Assanto, A. de Luca, C. Umeton, and I. C. Khoo, Appl. Phys. Lett. 77, 7 (2000).
[CrossRef]

Dumm, D. A.

D. A. Dumm, A. Fukuda, and G. R. Luckhurst, Physical Properties of Liquid Crystals: Nematics (INSPEC, London, 2001).

Efremidis, N. K.

J. W. Fleisher, T. Carmon, M. Segev, N. K. Efremidis, and D. N. Christodoulides, Phys. Rev. Lett. 90, 023902 (2003).
[CrossRef]

J. W. Fleisher, M. Segev, N. K. Efremidis, and D. N. Christodoulides, Nature 422, 147 (2003).
[CrossRef]

N. K. Efremidis, S. Sears, D. N. Christodoulides, J. W. Fleischer, and M. Segev, Phys. Rev. E 66, 046602 (2002).
[CrossRef]

Eisenberg, H. S.

A. A. Sukhorukov, Y. S. Kivshar, H. S. Eisenberg, and Y. Silberberg, IEEE J. Quantum Electron. 39, 31 (2003).
[CrossRef]

D. Mandelik, H. S. Eisenberg, Y. Silberberg, R. Morandotti, and J. S. Aitchison, Phys. Rev. Lett. 90, 53902 (2003).
[CrossRef]

H. S. Eisenberg, Y. Silberberg, R. Morandotti, and J. S. Aitchison, Phys. Rev. Lett. 85, 1863 (2000).
[CrossRef] [PubMed]

H. S. Eisenberg, Y. Silberberg, R. Morandotti, A. R. Boyd, and J. S. Aitchison, Phys. Rev. Lett. 81, 3383 (1998).
[CrossRef]

Eugenieva, E. D.

D. N. Christodoulides and E. D. Eugenieva, Phys. Rev. Lett. 87, 233901 (2001).
[CrossRef]

Faucheux, L. P.

E. Braun, L. P. Faucheux, and A. Libchaber, Phys. Rev. A 48, 611 (1993).
[CrossRef] [PubMed]

Fleischer, J. W.

N. K. Efremidis, S. Sears, D. N. Christodoulides, J. W. Fleischer, and M. Segev, Phys. Rev. E 66, 046602 (2002).
[CrossRef]

Fleisher, J. W.

J. W. Fleisher, M. Segev, N. K. Efremidis, and D. N. Christodoulides, Nature 422, 147 (2003).
[CrossRef]

J. W. Fleisher, T. Carmon, M. Segev, N. K. Efremidis, and D. N. Christodoulides, Phys. Rev. Lett. 90, 023902 (2003).
[CrossRef]

Fukuda, A.

D. A. Dumm, A. Fukuda, and G. R. Luckhurst, Physical Properties of Liquid Crystals: Nematics (INSPEC, London, 2001).

Henninot, J. F.

M. Warenghem, J. F. Henninot, and G. Abbate, Mol. Cryst. Liq. Cryst. 320, 207 (1998).
[CrossRef]

Iwanow, R. I.

R. Schiek, R. I. Iwanow, G. I. Stegeman, T. Pertsch, F. Lederer, Y. Min, and W. Sohler, in IEEE LEOS 2003 Annual Meeting (Institute of Electrical and Electronics Engineers, Piscataway, N.J., 2003), postdeadline paper 1.4.

Joseph, R. I.

Karpierz, M.

M. Karpierz, Phys. Rev. E 66, 036603 (2002).
[CrossRef]

Khoo, I. C.

M. Peccianti, G. Assanto, A. de Luca, C. Umeton, and I. C. Khoo, Appl. Phys. Lett. 77, 7 (2000).
[CrossRef]

Kivshar, Y.

Kivshar, Y. S.

A. A. Sukhorukov, Y. S. Kivshar, H. S. Eisenberg, and Y. Silberberg, IEEE J. Quantum Electron. 39, 31 (2003).
[CrossRef]

Kobyakov, A.

F. Lederer, S. Darmanyan, and A. Kobyakov, in Spatial Solitons, S. Trillo and W. Torruellas, eds. (Wiley, New York, 2002), pp. 269–292.

Krolikowski, W.

Lederer, F.

D. N. Christodoulides, F. Lederer, and Y. Silberberg, Nature 424, 817 (2003).
[CrossRef] [PubMed]

F. Lederer and Y. Silberberg, Opt. Photon. News 13(2), 49 (2002).
[CrossRef]

F. Lederer, S. Darmanyan, and A. Kobyakov, in Spatial Solitons, S. Trillo and W. Torruellas, eds. (Wiley, New York, 2002), pp. 269–292.

R. Schiek, R. I. Iwanow, G. I. Stegeman, T. Pertsch, F. Lederer, Y. Min, and W. Sohler, in IEEE LEOS 2003 Annual Meeting (Institute of Electrical and Electronics Engineers, Piscataway, N.J., 2003), postdeadline paper 1.4.

Libchaber, A.

E. Braun, L. P. Faucheux, and A. Libchaber, Phys. Rev. A 48, 611 (1993).
[CrossRef] [PubMed]

Luckhurst, G. R.

D. A. Dumm, A. Fukuda, and G. R. Luckhurst, Physical Properties of Liquid Crystals: Nematics (INSPEC, London, 2001).

MacNeil, L.

A. C. Scott and L. MacNeil, Phys. Lett. A 98, 87 (1983).
[CrossRef]

Mandelik, D.

D. Mandelik, H. S. Eisenberg, Y. Silberberg, R. Morandotti, and J. S. Aitchison, Phys. Rev. Lett. 90, 53902 (2003).
[CrossRef]

Min, Y.

R. Schiek, R. I. Iwanow, G. I. Stegeman, T. Pertsch, F. Lederer, Y. Min, and W. Sohler, in IEEE LEOS 2003 Annual Meeting (Institute of Electrical and Electronics Engineers, Piscataway, N.J., 2003), postdeadline paper 1.4.

Morandotti, R.

D. Mandelik, H. S. Eisenberg, Y. Silberberg, R. Morandotti, and J. S. Aitchison, Phys. Rev. Lett. 90, 53902 (2003).
[CrossRef]

H. S. Eisenberg, Y. Silberberg, R. Morandotti, and J. S. Aitchison, Phys. Rev. Lett. 85, 1863 (2000).
[CrossRef] [PubMed]

H. S. Eisenberg, Y. Silberberg, R. Morandotti, A. R. Boyd, and J. S. Aitchison, Phys. Rev. Lett. 81, 3383 (1998).
[CrossRef]

Neshev, D.

Ostrovskaya, E.

Peccianti, M.

G. Assanto and M. Peccianti, IEEE J. Quantum Electron. 39, 13 (2003).
[CrossRef]

M. Peccianti, C. Conti, G. Assanto, A. De Luca, and C. Umeton, J. Nonlin. Opt. Phys. Mater. 12, 525 (2003).
[CrossRef]

G. Assanto, M. Peccianti, and C. Conti, Opt. Photon. News 14(2), 44 (2003).
[CrossRef]

C. Conti, M. Peccianti, and G. Assanto, Phys. Rev. Lett. 91, 073901 (2003).
[CrossRef]

M. Peccianti, K. A. Brzdąkiewicz, and G. Assanto, Opt. Lett. 27, 1460 (2002).
[CrossRef]

M. Peccianti and G. Assanto, Phys. Rev. E 65, 035603 (2002).
[CrossRef]

M. Peccianti, G. Assanto, A. de Luca, C. Umeton, and I. C. Khoo, Appl. Phys. Lett. 77, 7 (2000).
[CrossRef]

Pertsch, T.

R. Schiek, R. I. Iwanow, G. I. Stegeman, T. Pertsch, F. Lederer, Y. Min, and W. Sohler, in IEEE LEOS 2003 Annual Meeting (Institute of Electrical and Electronics Engineers, Piscataway, N.J., 2003), postdeadline paper 1.4.

Schiek, R.

R. Schiek, R. I. Iwanow, G. I. Stegeman, T. Pertsch, F. Lederer, Y. Min, and W. Sohler, in IEEE LEOS 2003 Annual Meeting (Institute of Electrical and Electronics Engineers, Piscataway, N.J., 2003), postdeadline paper 1.4.

Scott, A. C.

A. C. Scott and L. MacNeil, Phys. Lett. A 98, 87 (1983).
[CrossRef]

Sears, S.

N. K. Efremidis, S. Sears, D. N. Christodoulides, J. W. Fleischer, and M. Segev, Phys. Rev. E 66, 046602 (2002).
[CrossRef]

Segev, M.

J. W. Fleisher, M. Segev, N. K. Efremidis, and D. N. Christodoulides, Nature 422, 147 (2003).
[CrossRef]

J. W. Fleisher, T. Carmon, M. Segev, N. K. Efremidis, and D. N. Christodoulides, Phys. Rev. Lett. 90, 023902 (2003).
[CrossRef]

N. K. Efremidis, S. Sears, D. N. Christodoulides, J. W. Fleischer, and M. Segev, Phys. Rev. E 66, 046602 (2002).
[CrossRef]

Silberberg, Y.

D. N. Christodoulides, F. Lederer, and Y. Silberberg, Nature 424, 817 (2003).
[CrossRef] [PubMed]

A. A. Sukhorukov, Y. S. Kivshar, H. S. Eisenberg, and Y. Silberberg, IEEE J. Quantum Electron. 39, 31 (2003).
[CrossRef]

D. Mandelik, H. S. Eisenberg, Y. Silberberg, R. Morandotti, and J. S. Aitchison, Phys. Rev. Lett. 90, 53902 (2003).
[CrossRef]

F. Lederer and Y. Silberberg, Opt. Photon. News 13(2), 49 (2002).
[CrossRef]

H. S. Eisenberg, Y. Silberberg, R. Morandotti, and J. S. Aitchison, Phys. Rev. Lett. 85, 1863 (2000).
[CrossRef] [PubMed]

H. S. Eisenberg, Y. Silberberg, R. Morandotti, A. R. Boyd, and J. S. Aitchison, Phys. Rev. Lett. 81, 3383 (1998).
[CrossRef]

Sohler, W.

R. Schiek, R. I. Iwanow, G. I. Stegeman, T. Pertsch, F. Lederer, Y. Min, and W. Sohler, in IEEE LEOS 2003 Annual Meeting (Institute of Electrical and Electronics Engineers, Piscataway, N.J., 2003), postdeadline paper 1.4.

Stegeman, G. I.

R. Schiek, R. I. Iwanow, G. I. Stegeman, T. Pertsch, F. Lederer, Y. Min, and W. Sohler, in IEEE LEOS 2003 Annual Meeting (Institute of Electrical and Electronics Engineers, Piscataway, N.J., 2003), postdeadline paper 1.4.

Sukhorukov, A. A.

A. A. Sukhorukov, Y. S. Kivshar, H. S. Eisenberg, and Y. Silberberg, IEEE J. Quantum Electron. 39, 31 (2003).
[CrossRef]

Umeton, C.

M. Peccianti, C. Conti, G. Assanto, A. De Luca, and C. Umeton, J. Nonlin. Opt. Phys. Mater. 12, 525 (2003).
[CrossRef]

M. Peccianti, G. Assanto, A. de Luca, C. Umeton, and I. C. Khoo, Appl. Phys. Lett. 77, 7 (2000).
[CrossRef]

Warenghem, M.

M. Warenghem, J. F. Henninot, and G. Abbate, Mol. Cryst. Liq. Cryst. 320, 207 (1998).
[CrossRef]

Appl. Phys. Lett. (1)

M. Peccianti, G. Assanto, A. de Luca, C. Umeton, and I. C. Khoo, Appl. Phys. Lett. 77, 7 (2000).
[CrossRef]

IEEE J. Quantum Electron. (2)

G. Assanto and M. Peccianti, IEEE J. Quantum Electron. 39, 13 (2003).
[CrossRef]

A. A. Sukhorukov, Y. S. Kivshar, H. S. Eisenberg, and Y. Silberberg, IEEE J. Quantum Electron. 39, 31 (2003).
[CrossRef]

J. Nonlin. Opt. Phys. Mater. (1)

M. Peccianti, C. Conti, G. Assanto, A. De Luca, and C. Umeton, J. Nonlin. Opt. Phys. Mater. 12, 525 (2003).
[CrossRef]

Mol. Cryst. Liq. Cryst. (1)

M. Warenghem, J. F. Henninot, and G. Abbate, Mol. Cryst. Liq. Cryst. 320, 207 (1998).
[CrossRef]

Nature (2)

J. W. Fleisher, M. Segev, N. K. Efremidis, and D. N. Christodoulides, Nature 422, 147 (2003).
[CrossRef]

D. N. Christodoulides, F. Lederer, and Y. Silberberg, Nature 424, 817 (2003).
[CrossRef] [PubMed]

Opt. Lett. (3)

Opt. Photon. News (2)

G. Assanto, M. Peccianti, and C. Conti, Opt. Photon. News 14(2), 44 (2003).
[CrossRef]

F. Lederer and Y. Silberberg, Opt. Photon. News 13(2), 49 (2002).
[CrossRef]

Phys. Lett. A (1)

A. C. Scott and L. MacNeil, Phys. Lett. A 98, 87 (1983).
[CrossRef]

Phys. Rev. A (1)

E. Braun, L. P. Faucheux, and A. Libchaber, Phys. Rev. A 48, 611 (1993).
[CrossRef] [PubMed]

Phys. Rev. E (3)

N. K. Efremidis, S. Sears, D. N. Christodoulides, J. W. Fleischer, and M. Segev, Phys. Rev. E 66, 046602 (2002).
[CrossRef]

M. Karpierz, Phys. Rev. E 66, 036603 (2002).
[CrossRef]

M. Peccianti and G. Assanto, Phys. Rev. E 65, 035603 (2002).
[CrossRef]

Phys. Rev. Lett. (6)

C. Conti, M. Peccianti, and G. Assanto, Phys. Rev. Lett. 91, 073901 (2003).
[CrossRef]

D. Mandelik, H. S. Eisenberg, Y. Silberberg, R. Morandotti, and J. S. Aitchison, Phys. Rev. Lett. 90, 53902 (2003).
[CrossRef]

D. N. Christodoulides and E. D. Eugenieva, Phys. Rev. Lett. 87, 233901 (2001).
[CrossRef]

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F. Lederer, S. Darmanyan, and A. Kobyakov, in Spatial Solitons, S. Trillo and W. Torruellas, eds. (Wiley, New York, 2002), pp. 269–292.

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Figures (5)

Fig. 1
Fig. 1

Cell for the liquid-crystal waveguide array: Λ, array period; d, cell thickness; V, applied bias.

Fig. 2
Fig. 2

Calculated refractive-index distributions versus bias: (a) V=1.15 V; (b) V=1.20 V; (c) V=1.25 V. Liquid crystal, 5CB (ΔRF=120, n=1.6814, n=1.5158 at 1.064 µm). Here Λ=6 µm and d=5 µm, and the covers are made from BK7 glass (n=1.50664 at λ=1.064 µm).

Fig. 3
Fig. 3

Observation of induced refractive-index modulation through crossed polarizers: (a) V=0 V, (b) V=1.4 V.

Fig. 4
Fig. 4

Beam propagation method simulations for the NLC array (period, Λ=7 µm): (a) 1D diffraction (0.1 mW) in y,z in the absence of bias, (b) discrete diffraction of Gaussian input (0.1 mW) launched into one of the channels at V=1.20 V, (c) a discrete nematicon for V=1.20 V and 2-mW excitation.

Fig. 5
Fig. 5

Experiments with light propagation at 1064 nm: (a) 1D diffraction at V=0 V, (b) low-power discrete diffraction at V=1.2 V and 20-mW input, (c) discrete nematicon at V=1.2 V for 35-mW input. The residual coupling and transverse–longitudinal power fluctuations shown are due partly to the limits of the camera and partly to nonuniformities in the sample.

Equations (2)

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K2θ+ΔRFE22 sin2θ=0,
x cos2 θ+ sin2 θxVx,y+2y2Vx,y=0.

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