摘要We theoretically and experimentally investigate the long-range interaction between nematicons. It is demonstrated that the interaction becomes strongest when the pretilt angle of liquid crystal molecules is nearly π/4 for a given single-beam input power P0, and that the interaction becomes stronger when the incident power P0 increases at a given pretilt angle. In this way, the interaction is still observed when the initial separation is 43 times of the soliton width, much larger than that implemented in lead glasses [Nature Phys. 2(2006)769].
Abstract：We theoretically and experimentally investigate the long-range interaction between nematicons. It is demonstrated that the interaction becomes strongest when the pretilt angle of liquid crystal molecules is nearly π/4 for a given single-beam input power P0, and that the interaction becomes stronger when the incident power P0 increases at a given pretilt angle. In this way, the interaction is still observed when the initial separation is 43 times of the soliton width, much larger than that implemented in lead glasses [Nature Phys. 2(2006)769].
[1] Snyder A W and Mitchell D J 1997 Science 2761538 [2] Desyatnikov A S et al 2005 Phys. Rev. Lett. 95 203904 [3] Guo Q et al 2004 Phys. Rev. E 69 016602 [4] Conti C et al 2003 Phys. Rev. Lett. 91 073901 [5] Peccianti M et al 2002 Appl. Phys. Lett. 813335 [6] Peccianti M et al 2004 Nature 432 733 [7] Conti C et al 2004 Phys. Rev. Lett. 92 113902 [8] Rotschild C et al 2006 Nature Phys. 2 769 [9] Rotschild C et al 2005 Phys. Rev. Lett. 95213904 [10] Dreischuh A et al 2006 Phys. Rev. Lett. 96043901 [11] Suter D and Blasberg T 1993 Phys. Rev. A 484583 [12] Peccianti M et al 2002 Opt. Lett. 27 1460 [13] Rasmussen P D, Bang O and Kr\'{olikowski W 2005 Phys. Rev. E 72 066611 [14] Peccianti M, Conti C, Assanto G, De Luca A and Umeton C2003 J. Nonlear. Opt. Phys. Mat. 12 525 [15] Hu W, Zhang T, Guo Q, Xuan L and Lan S 2006 Appl.Phys. Lett. 89 071111 [16] Peccianti M, Conti C and Assanto G 2005 Opt. Lett. 30 415 [17] Stegeman G I and Segev M 1999 Science 2861518
2009, Vol. 26 
