Abstract

We investigate a power tunable junction formed by two interacting spatial solitons self-trapped in nematic liquid crystals. By launching a counter-propagating copolarized probe we assess the guided-wave behavior induced by the solitons and demonstrate a novel all-optical switch. Varying soliton power the probe gets trapped into one or two or three guided-waves by the soliton-induced index perturbation, an effect supported by the nonlocal nonlinearity.

© 2012 OSA

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  1. Yu. S. Kivshar and G. P. Agrawal, Optical Solitons: From Fibers to Photonic Crystals (Academic, 2003).
  2. M. Peccianti and G. Assanto, “Nematicons,” Phys. Rep. 516, 147–208 (2012).
    [CrossRef]
  3. A. Piccardi, A. Alberucci, N. Tabiryan, and G. Assanto, “Dark nematicons,” Opt. Lett. 36, 1456–1458 (2011).
    [CrossRef]
  4. M. Peccianti, G. Assanto, A. De Luca, C. Umeton, and I. C. Khoo, “Electrically assisted self-confinement and waveguiding in planar nematic liquid crystal cells”, Appl. Phys. Lett. 77, 7–9 (2000).
    [CrossRef]
  5. M. Peccianti and G. Assanto, “Signal readdressing by steering of spatial solitons in bulk nematic liquid crystals,” Opt. Lett. 26, 1690–1692 (2001).
    [CrossRef]
  6. J. Beeckman, K. Neyts, X. Hutsebaut, C. Cambournac, and M. Haelterman, “Simulations and experiments on self-focusing conditions in nematic liquid-crystal planar cells,” Opt. Express 12, 1011 (2004).
    [CrossRef] [PubMed]
  7. Ya. V. Izdebskaya, A. S. Desyatnikov, G. Assanto, and Yu. S. Kivshar, “Multimode nematicon waveguides,” Opt. Lett. 36, 184–186 (2011).
    [CrossRef] [PubMed]
  8. M. Peccianti, K. A. Brzdakiewicz, and G. Assanto, “Nonlocal spatial soliton interactions in bulk nematic liquid crystals,” Opt. Lett. 27, 1460–1462 (2002).
    [CrossRef]
  9. M. Peccianti, C. Conti, G. Assanto, A. De Luca, and G. Umeton, “All-optical switching and logic gating with spatial solitons in liquid crystal,” Appl. Phys. Lett. 81, 3335–3337 (2002).
    [CrossRef]
  10. S. V. Serak, N. V. Tabiryan, M. Peccianti, and G. Assanto, “Spatial soliton all-optical logic gates,” IEEE Photon. Techn. Lett. 18, 1287–1289 (2006).
    [CrossRef]
  11. A. Piccardi, A. Alberucci, U. Bortolozzo, S. Residori, and G. Assanto, “Soliton gating and switching in liquid crystal light valve,” Appl. Phys. Lett. 96, 071104 (2010).
    [CrossRef]
  12. M. Peccianti, A. Dyadyusha, M. Kaczmarek, and G. Assanto, “Tunable refraction and reflection of self-confined light beams,” Nat. Phys. 2, 737–742 (2006).
    [CrossRef]
  13. Ya. V. Izdebskaya, V. G. Shvedov, A. S. Desyatnikov, W. Krolikowski, and Yu. S. Kivshar, “Soliton bending and routing induced by interaction with curved surfaces in nematic liquid crystals,” Opt. Lett. 35, 1692–1694 (2010).
    [CrossRef] [PubMed]
  14. R. Barboza, A. Alberucci, and G. Assanto, “Large electro-optic beam steering with nematicons,” Opt. Lett. 36, 2611–2613 (2011).
    [CrossRef]
  15. J.-F. Henninot, J.-F. Blach, and M. Warenghem, “Experimental study of nonlocality of spatial optical soliton excited in nematic liquid crystal,” J. Opt. A 9, 20–25 (2007).
    [CrossRef]
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    [CrossRef] [PubMed]
  17. W. Krolikowski, O. Bang, N. I. Nikolov, D. Neshev, J. Wyller, J. J. Rasmussen, and D. Edmundson “Modulational instability, solitons and beam propagation in spatially nonlocal nonlinear media”, J. Opt. B 6, S288 (2004).
    [CrossRef]
  18. M. Szaleniec, R. Tokarz-Sobieraj, and W. Witko “Theoretical study of 1-(4-hexylcyclohexyl)-4-isothiocyanatobenzene: molecular properties and spectral characteristics,” J. Mol. Model. 15, 935, (2009).
    [CrossRef] [PubMed]
  19. D. Buccoliero, A. S. Desyatnikov, W. Krolikowski, and Yu. S. Kivshar, “Laguerre and Hermite Soliton clusters in nonlocal nonlinear media”, Phys. Rev. Lett. 98, 053901 (2007).
    [CrossRef] [PubMed]
  20. S. Lopez-Aguayo, A. S. Desyatnikov, Yu. S. Kivshar, S. Skupin, W. Krolikowski, and O. Bang, “Stable rotating dipole solitons in nonlocal optical media”, Opt. Lett. 6, 1100–1102 (2006).
    [CrossRef]
  21. Ya. V. Izdebskaya, A. S. Desyatnikov, G. Assanto, and Yu. S. Kivshar, “Dipole azimuthons and vortex charge flipping in nematic liquid crystals,” Opt. Express 19, 21457–21562 (2011).
    [CrossRef] [PubMed]
  22. C. Conti, M. Peccianti, and G. Assanto, “Route to nonlocality and observation of accessible solitons,” Phys. Rev. Lett. 91, 073901 (2003).
    [CrossRef] [PubMed]
  23. A. W. Snyder and D. J. Mitchell, “Accessible solitons,” Science 276, 1538 (1997).
    [CrossRef]
  24. M. Izutsu, Y. Nakai, and T. Suet, “Operation mechanism of the single-mode optical-waveguide Y junction,” Opt. Lett. 7, 136–138 (1982).
    [CrossRef] [PubMed]

2012 (1)

M. Peccianti and G. Assanto, “Nematicons,” Phys. Rep. 516, 147–208 (2012).
[CrossRef]

2011 (4)

2010 (3)

2009 (1)

M. Szaleniec, R. Tokarz-Sobieraj, and W. Witko “Theoretical study of 1-(4-hexylcyclohexyl)-4-isothiocyanatobenzene: molecular properties and spectral characteristics,” J. Mol. Model. 15, 935, (2009).
[CrossRef] [PubMed]

2007 (2)

D. Buccoliero, A. S. Desyatnikov, W. Krolikowski, and Yu. S. Kivshar, “Laguerre and Hermite Soliton clusters in nonlocal nonlinear media”, Phys. Rev. Lett. 98, 053901 (2007).
[CrossRef] [PubMed]

J.-F. Henninot, J.-F. Blach, and M. Warenghem, “Experimental study of nonlocality of spatial optical soliton excited in nematic liquid crystal,” J. Opt. A 9, 20–25 (2007).
[CrossRef]

2006 (3)

S. V. Serak, N. V. Tabiryan, M. Peccianti, and G. Assanto, “Spatial soliton all-optical logic gates,” IEEE Photon. Techn. Lett. 18, 1287–1289 (2006).
[CrossRef]

S. Lopez-Aguayo, A. S. Desyatnikov, Yu. S. Kivshar, S. Skupin, W. Krolikowski, and O. Bang, “Stable rotating dipole solitons in nonlocal optical media”, Opt. Lett. 6, 1100–1102 (2006).
[CrossRef]

M. Peccianti, A. Dyadyusha, M. Kaczmarek, and G. Assanto, “Tunable refraction and reflection of self-confined light beams,” Nat. Phys. 2, 737–742 (2006).
[CrossRef]

2004 (2)

J. Beeckman, K. Neyts, X. Hutsebaut, C. Cambournac, and M. Haelterman, “Simulations and experiments on self-focusing conditions in nematic liquid-crystal planar cells,” Opt. Express 12, 1011 (2004).
[CrossRef] [PubMed]

W. Krolikowski, O. Bang, N. I. Nikolov, D. Neshev, J. Wyller, J. J. Rasmussen, and D. Edmundson “Modulational instability, solitons and beam propagation in spatially nonlocal nonlinear media”, J. Opt. B 6, S288 (2004).
[CrossRef]

2003 (1)

C. Conti, M. Peccianti, and G. Assanto, “Route to nonlocality and observation of accessible solitons,” Phys. Rev. Lett. 91, 073901 (2003).
[CrossRef] [PubMed]

2002 (2)

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

M. Peccianti, C. Conti, G. Assanto, A. De Luca, and G. Umeton, “All-optical switching and logic gating with spatial solitons in liquid crystal,” Appl. Phys. Lett. 81, 3335–3337 (2002).
[CrossRef]

2001 (1)

2000 (1)

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

1997 (1)

A. W. Snyder and D. J. Mitchell, “Accessible solitons,” Science 276, 1538 (1997).
[CrossRef]

1982 (1)

Agrawal, G. P.

Yu. S. Kivshar and G. P. Agrawal, Optical Solitons: From Fibers to Photonic Crystals (Academic, 2003).

Alberucci, A.

A. Piccardi, A. Alberucci, N. Tabiryan, and G. Assanto, “Dark nematicons,” Opt. Lett. 36, 1456–1458 (2011).
[CrossRef]

R. Barboza, A. Alberucci, and G. Assanto, “Large electro-optic beam steering with nematicons,” Opt. Lett. 36, 2611–2613 (2011).
[CrossRef]

A. Piccardi, A. Alberucci, U. Bortolozzo, S. Residori, and G. Assanto, “Soliton gating and switching in liquid crystal light valve,” Appl. Phys. Lett. 96, 071104 (2010).
[CrossRef]

Assanto, G.

M. Peccianti and G. Assanto, “Nematicons,” Phys. Rep. 516, 147–208 (2012).
[CrossRef]

A. Piccardi, A. Alberucci, N. Tabiryan, and G. Assanto, “Dark nematicons,” Opt. Lett. 36, 1456–1458 (2011).
[CrossRef]

Ya. V. Izdebskaya, A. S. Desyatnikov, G. Assanto, and Yu. S. Kivshar, “Multimode nematicon waveguides,” Opt. Lett. 36, 184–186 (2011).
[CrossRef] [PubMed]

R. Barboza, A. Alberucci, and G. Assanto, “Large electro-optic beam steering with nematicons,” Opt. Lett. 36, 2611–2613 (2011).
[CrossRef]

Ya. V. Izdebskaya, A. S. Desyatnikov, G. Assanto, and Yu. S. Kivshar, “Dipole azimuthons and vortex charge flipping in nematic liquid crystals,” Opt. Express 19, 21457–21562 (2011).
[CrossRef] [PubMed]

A. Piccardi, A. Alberucci, U. Bortolozzo, S. Residori, and G. Assanto, “Soliton gating and switching in liquid crystal light valve,” Appl. Phys. Lett. 96, 071104 (2010).
[CrossRef]

Ya. V. Izdebskaya, V. G. Shvedov, A. S. Desyatnikov, W. Z. Krolikowski, M. Belic, G. Assanto, and Yu. S. Kivshar, “Counterpropagating nematicons in bias-free liquid crystals,” Opt. Express 18, 3258–3263 (2010).
[CrossRef] [PubMed]

M. Peccianti, A. Dyadyusha, M. Kaczmarek, and G. Assanto, “Tunable refraction and reflection of self-confined light beams,” Nat. Phys. 2, 737–742 (2006).
[CrossRef]

S. V. Serak, N. V. Tabiryan, M. Peccianti, and G. Assanto, “Spatial soliton all-optical logic gates,” IEEE Photon. Techn. Lett. 18, 1287–1289 (2006).
[CrossRef]

C. Conti, M. Peccianti, and G. Assanto, “Route to nonlocality and observation of accessible solitons,” Phys. Rev. Lett. 91, 073901 (2003).
[CrossRef] [PubMed]

M. Peccianti, C. Conti, G. Assanto, A. De Luca, and G. Umeton, “All-optical switching and logic gating with spatial solitons in liquid crystal,” Appl. Phys. Lett. 81, 3335–3337 (2002).
[CrossRef]

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

M. Peccianti and G. Assanto, “Signal readdressing by steering of spatial solitons in bulk nematic liquid crystals,” Opt. Lett. 26, 1690–1692 (2001).
[CrossRef]

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

Bang, O.

S. Lopez-Aguayo, A. S. Desyatnikov, Yu. S. Kivshar, S. Skupin, W. Krolikowski, and O. Bang, “Stable rotating dipole solitons in nonlocal optical media”, Opt. Lett. 6, 1100–1102 (2006).
[CrossRef]

W. Krolikowski, O. Bang, N. I. Nikolov, D. Neshev, J. Wyller, J. J. Rasmussen, and D. Edmundson “Modulational instability, solitons and beam propagation in spatially nonlocal nonlinear media”, J. Opt. B 6, S288 (2004).
[CrossRef]

Barboza, R.

Beeckman, J.

Belic, M.

Blach, J.-F.

J.-F. Henninot, J.-F. Blach, and M. Warenghem, “Experimental study of nonlocality of spatial optical soliton excited in nematic liquid crystal,” J. Opt. A 9, 20–25 (2007).
[CrossRef]

Bortolozzo, U.

A. Piccardi, A. Alberucci, U. Bortolozzo, S. Residori, and G. Assanto, “Soliton gating and switching in liquid crystal light valve,” Appl. Phys. Lett. 96, 071104 (2010).
[CrossRef]

Brzdakiewicz, K. A.

Buccoliero, D.

D. Buccoliero, A. S. Desyatnikov, W. Krolikowski, and Yu. S. Kivshar, “Laguerre and Hermite Soliton clusters in nonlocal nonlinear media”, Phys. Rev. Lett. 98, 053901 (2007).
[CrossRef] [PubMed]

Cambournac, C.

Conti, C.

C. Conti, M. Peccianti, and G. Assanto, “Route to nonlocality and observation of accessible solitons,” Phys. Rev. Lett. 91, 073901 (2003).
[CrossRef] [PubMed]

M. Peccianti, C. Conti, G. Assanto, A. De Luca, and G. Umeton, “All-optical switching and logic gating with spatial solitons in liquid crystal,” Appl. Phys. Lett. 81, 3335–3337 (2002).
[CrossRef]

De Luca, A.

M. Peccianti, C. Conti, G. Assanto, A. De Luca, and G. Umeton, “All-optical switching and logic gating with spatial solitons in liquid crystal,” Appl. Phys. Lett. 81, 3335–3337 (2002).
[CrossRef]

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

Desyatnikov, A. S.

Dyadyusha, A.

M. Peccianti, A. Dyadyusha, M. Kaczmarek, and G. Assanto, “Tunable refraction and reflection of self-confined light beams,” Nat. Phys. 2, 737–742 (2006).
[CrossRef]

Edmundson, D.

W. Krolikowski, O. Bang, N. I. Nikolov, D. Neshev, J. Wyller, J. J. Rasmussen, and D. Edmundson “Modulational instability, solitons and beam propagation in spatially nonlocal nonlinear media”, J. Opt. B 6, S288 (2004).
[CrossRef]

Haelterman, M.

Henninot, J.-F.

J.-F. Henninot, J.-F. Blach, and M. Warenghem, “Experimental study of nonlocality of spatial optical soliton excited in nematic liquid crystal,” J. Opt. A 9, 20–25 (2007).
[CrossRef]

Hutsebaut, X.

Izdebskaya, Ya. V.

Izutsu, M.

Kaczmarek, M.

M. Peccianti, A. Dyadyusha, M. Kaczmarek, and G. Assanto, “Tunable refraction and reflection of self-confined light beams,” Nat. Phys. 2, 737–742 (2006).
[CrossRef]

Khoo, I. C.

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

Kivshar, Yu. S.

Krolikowski, W.

Ya. V. Izdebskaya, V. G. Shvedov, A. S. Desyatnikov, W. Krolikowski, and Yu. S. Kivshar, “Soliton bending and routing induced by interaction with curved surfaces in nematic liquid crystals,” Opt. Lett. 35, 1692–1694 (2010).
[CrossRef] [PubMed]

D. Buccoliero, A. S. Desyatnikov, W. Krolikowski, and Yu. S. Kivshar, “Laguerre and Hermite Soliton clusters in nonlocal nonlinear media”, Phys. Rev. Lett. 98, 053901 (2007).
[CrossRef] [PubMed]

S. Lopez-Aguayo, A. S. Desyatnikov, Yu. S. Kivshar, S. Skupin, W. Krolikowski, and O. Bang, “Stable rotating dipole solitons in nonlocal optical media”, Opt. Lett. 6, 1100–1102 (2006).
[CrossRef]

W. Krolikowski, O. Bang, N. I. Nikolov, D. Neshev, J. Wyller, J. J. Rasmussen, and D. Edmundson “Modulational instability, solitons and beam propagation in spatially nonlocal nonlinear media”, J. Opt. B 6, S288 (2004).
[CrossRef]

Krolikowski, W. Z.

Lopez-Aguayo, S.

S. Lopez-Aguayo, A. S. Desyatnikov, Yu. S. Kivshar, S. Skupin, W. Krolikowski, and O. Bang, “Stable rotating dipole solitons in nonlocal optical media”, Opt. Lett. 6, 1100–1102 (2006).
[CrossRef]

Mitchell, D. J.

A. W. Snyder and D. J. Mitchell, “Accessible solitons,” Science 276, 1538 (1997).
[CrossRef]

Nakai, Y.

Neshev, D.

W. Krolikowski, O. Bang, N. I. Nikolov, D. Neshev, J. Wyller, J. J. Rasmussen, and D. Edmundson “Modulational instability, solitons and beam propagation in spatially nonlocal nonlinear media”, J. Opt. B 6, S288 (2004).
[CrossRef]

Neyts, K.

Nikolov, N. I.

W. Krolikowski, O. Bang, N. I. Nikolov, D. Neshev, J. Wyller, J. J. Rasmussen, and D. Edmundson “Modulational instability, solitons and beam propagation in spatially nonlocal nonlinear media”, J. Opt. B 6, S288 (2004).
[CrossRef]

Peccianti, M.

M. Peccianti and G. Assanto, “Nematicons,” Phys. Rep. 516, 147–208 (2012).
[CrossRef]

S. V. Serak, N. V. Tabiryan, M. Peccianti, and G. Assanto, “Spatial soliton all-optical logic gates,” IEEE Photon. Techn. Lett. 18, 1287–1289 (2006).
[CrossRef]

M. Peccianti, A. Dyadyusha, M. Kaczmarek, and G. Assanto, “Tunable refraction and reflection of self-confined light beams,” Nat. Phys. 2, 737–742 (2006).
[CrossRef]

C. Conti, M. Peccianti, and G. Assanto, “Route to nonlocality and observation of accessible solitons,” Phys. Rev. Lett. 91, 073901 (2003).
[CrossRef] [PubMed]

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

M. Peccianti, C. Conti, G. Assanto, A. De Luca, and G. Umeton, “All-optical switching and logic gating with spatial solitons in liquid crystal,” Appl. Phys. Lett. 81, 3335–3337 (2002).
[CrossRef]

M. Peccianti and G. Assanto, “Signal readdressing by steering of spatial solitons in bulk nematic liquid crystals,” Opt. Lett. 26, 1690–1692 (2001).
[CrossRef]

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

Piccardi, A.

A. Piccardi, A. Alberucci, N. Tabiryan, and G. Assanto, “Dark nematicons,” Opt. Lett. 36, 1456–1458 (2011).
[CrossRef]

A. Piccardi, A. Alberucci, U. Bortolozzo, S. Residori, and G. Assanto, “Soliton gating and switching in liquid crystal light valve,” Appl. Phys. Lett. 96, 071104 (2010).
[CrossRef]

Rasmussen, J. J.

W. Krolikowski, O. Bang, N. I. Nikolov, D. Neshev, J. Wyller, J. J. Rasmussen, and D. Edmundson “Modulational instability, solitons and beam propagation in spatially nonlocal nonlinear media”, J. Opt. B 6, S288 (2004).
[CrossRef]

Residori, S.

A. Piccardi, A. Alberucci, U. Bortolozzo, S. Residori, and G. Assanto, “Soliton gating and switching in liquid crystal light valve,” Appl. Phys. Lett. 96, 071104 (2010).
[CrossRef]

Serak, S. V.

S. V. Serak, N. V. Tabiryan, M. Peccianti, and G. Assanto, “Spatial soliton all-optical logic gates,” IEEE Photon. Techn. Lett. 18, 1287–1289 (2006).
[CrossRef]

Shvedov, V. G.

Skupin, S.

S. Lopez-Aguayo, A. S. Desyatnikov, Yu. S. Kivshar, S. Skupin, W. Krolikowski, and O. Bang, “Stable rotating dipole solitons in nonlocal optical media”, Opt. Lett. 6, 1100–1102 (2006).
[CrossRef]

Snyder, A. W.

A. W. Snyder and D. J. Mitchell, “Accessible solitons,” Science 276, 1538 (1997).
[CrossRef]

Suet, T.

Szaleniec, M.

M. Szaleniec, R. Tokarz-Sobieraj, and W. Witko “Theoretical study of 1-(4-hexylcyclohexyl)-4-isothiocyanatobenzene: molecular properties and spectral characteristics,” J. Mol. Model. 15, 935, (2009).
[CrossRef] [PubMed]

Tabiryan, N.

A. Piccardi, A. Alberucci, N. Tabiryan, and G. Assanto, “Dark nematicons,” Opt. Lett. 36, 1456–1458 (2011).
[CrossRef]

Tabiryan, N. V.

S. V. Serak, N. V. Tabiryan, M. Peccianti, and G. Assanto, “Spatial soliton all-optical logic gates,” IEEE Photon. Techn. Lett. 18, 1287–1289 (2006).
[CrossRef]

Tokarz-Sobieraj, R.

M. Szaleniec, R. Tokarz-Sobieraj, and W. Witko “Theoretical study of 1-(4-hexylcyclohexyl)-4-isothiocyanatobenzene: molecular properties and spectral characteristics,” J. Mol. Model. 15, 935, (2009).
[CrossRef] [PubMed]

Umeton, C.

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

Umeton, G.

M. Peccianti, C. Conti, G. Assanto, A. De Luca, and G. Umeton, “All-optical switching and logic gating with spatial solitons in liquid crystal,” Appl. Phys. Lett. 81, 3335–3337 (2002).
[CrossRef]

Warenghem, M.

J.-F. Henninot, J.-F. Blach, and M. Warenghem, “Experimental study of nonlocality of spatial optical soliton excited in nematic liquid crystal,” J. Opt. A 9, 20–25 (2007).
[CrossRef]

Witko, W.

M. Szaleniec, R. Tokarz-Sobieraj, and W. Witko “Theoretical study of 1-(4-hexylcyclohexyl)-4-isothiocyanatobenzene: molecular properties and spectral characteristics,” J. Mol. Model. 15, 935, (2009).
[CrossRef] [PubMed]

Wyller, J.

W. Krolikowski, O. Bang, N. I. Nikolov, D. Neshev, J. Wyller, J. J. Rasmussen, and D. Edmundson “Modulational instability, solitons and beam propagation in spatially nonlocal nonlinear media”, J. Opt. B 6, S288 (2004).
[CrossRef]

Appl. Phys. Lett. (3)

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

M. Peccianti, C. Conti, G. Assanto, A. De Luca, and G. Umeton, “All-optical switching and logic gating with spatial solitons in liquid crystal,” Appl. Phys. Lett. 81, 3335–3337 (2002).
[CrossRef]

A. Piccardi, A. Alberucci, U. Bortolozzo, S. Residori, and G. Assanto, “Soliton gating and switching in liquid crystal light valve,” Appl. Phys. Lett. 96, 071104 (2010).
[CrossRef]

IEEE Photon. Techn. Lett. (1)

S. V. Serak, N. V. Tabiryan, M. Peccianti, and G. Assanto, “Spatial soliton all-optical logic gates,” IEEE Photon. Techn. Lett. 18, 1287–1289 (2006).
[CrossRef]

J. Mol. Model. (1)

M. Szaleniec, R. Tokarz-Sobieraj, and W. Witko “Theoretical study of 1-(4-hexylcyclohexyl)-4-isothiocyanatobenzene: molecular properties and spectral characteristics,” J. Mol. Model. 15, 935, (2009).
[CrossRef] [PubMed]

J. Opt. A (1)

J.-F. Henninot, J.-F. Blach, and M. Warenghem, “Experimental study of nonlocality of spatial optical soliton excited in nematic liquid crystal,” J. Opt. A 9, 20–25 (2007).
[CrossRef]

J. Opt. B (1)

W. Krolikowski, O. Bang, N. I. Nikolov, D. Neshev, J. Wyller, J. J. Rasmussen, and D. Edmundson “Modulational instability, solitons and beam propagation in spatially nonlocal nonlinear media”, J. Opt. B 6, S288 (2004).
[CrossRef]

Nat. Phys. (1)

M. Peccianti, A. Dyadyusha, M. Kaczmarek, and G. Assanto, “Tunable refraction and reflection of self-confined light beams,” Nat. Phys. 2, 737–742 (2006).
[CrossRef]

Opt. Express (3)

Opt. Lett. (8)

Phys. Rep. (1)

M. Peccianti and G. Assanto, “Nematicons,” Phys. Rep. 516, 147–208 (2012).
[CrossRef]

Phys. Rev. Lett. (2)

C. Conti, M. Peccianti, and G. Assanto, “Route to nonlocality and observation of accessible solitons,” Phys. Rev. Lett. 91, 073901 (2003).
[CrossRef] [PubMed]

D. Buccoliero, A. S. Desyatnikov, W. Krolikowski, and Yu. S. Kivshar, “Laguerre and Hermite Soliton clusters in nonlocal nonlinear media”, Phys. Rev. Lett. 98, 053901 (2007).
[CrossRef] [PubMed]

Science (1)

A. W. Snyder and D. J. Mitchell, “Accessible solitons,” Science 276, 1538 (1997).
[CrossRef]

Other (1)

Yu. S. Kivshar and G. P. Agrawal, Optical Solitons: From Fibers to Photonic Crystals (Academic, 2003).

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Figures (5)

Fig. 1
Fig. 1

Individual nematicon waveguide and counter-propagating probe signal: (a) green forward nematicon excited at P=2 mW and propagating along the extraordinary walk-off angle with respect to the input wave-vector along z, (b) diffracting CP probe beam in the absence of nematicon; (c) nematicon-guided CP signal. (d) Intensity profiles of the CP probe for various nematicon excitations P; the transverse profiles are acquired from images of signal evolution in the plane (x, z) nearby z = 0, as marked by white dashed lines in (b,c).

Fig. 2
Fig. 2

Setup: L1, L2 - cw lasers; λ/2 - half-wavelength plates; BS - beam splitters; M1 -mirror; M2 - mirror on a piezo-transducer; STM - dichroic mirror; MO1 and MO2 - 10 X microscope objectives; MO3 - 5X microscope objective; NLC - sample; RF - red band-pass filters; D - diaphragm; PM - power meter; CCD1 and CCD2 - cameras.

Fig. 3
Fig. 3

Evolution of two CO green nematicons for various excitations P (a–d), with the corresponding output transverse (x, y) profiles (e–h) and backward propagation (i–l) of the CP red signal.

Fig. 4
Fig. 4

(a) Probe power Ps (s = 1, 2, 3) in each of the three output spots versus excitation P of each nematicon. (b) Transverse profiles of the probe output for various soliton powers P.

Fig. 5
Fig. 5

Nonlocal dipole soliton with a = 1. Graphs of Intensity profiles I(x, y = 0) (solid line) and refractive index N(x, y = 0) (dashed line) for (a) σ = 0.3 and P = 38.6, (b) σ = 1 and P = 84.8, (c) σ = 1.5 and P = 133.3. Note that the different vertical scales in (a)–(c).

Equations (2)

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P | E | 2 d r = π 2 A 2 a 4 = 2 π a 4 ( 2 a 2 + σ 2 ) 4 3 a 4 + a 2 σ 2 + 2 σ 4 ,
N ( x , y ) = A 2 a 6 ( a 2 + σ 2 ) 3 ( x 2 + σ 2 2 ( 1 + σ 2 a 2 ) ) exp ( x 2 + y 2 a 2 + σ 2 ) .

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