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. 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]

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]

2004 (2)

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]

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]

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.

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, 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]

Assanto, G.

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

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

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]

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]

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, 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]

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]

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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