Original Articles |
|
|
|
|
Interaction between Two-Dimensional White-Light Photovoltaic Dark Spatial Solitons |
LIU Zhao-Hong;LIU Si-Min;GUO Ru;GAO Yuan-Mei; SONG Tao;ZHU Nan;QU Di |
Photonics Center, College of Physics Science, Nankai University, Tianjin 300071
The Key Lab of Advanced Technique and Fabrication for Weak-Light Nonlinear Photonics Materials (Ministry of Education), Nankai University, Tianjin 300457 |
|
Cite this article: |
LIU Zhao-Hong, LIU Si-Min, GUO Ru et al 2007 Chin. Phys. Lett. 24 446-449 |
|
|
Abstract Using fully incoherent white light emitted from an incandescent bulb (a line source) and amplitude mask, we study experimentally the interaction between two 2D white-light photovoltaic dark spatial solitons with three different separations (40μm, 50μm and 60μm) and arrangement directions (parallel to, perpendicular to and tilted at 45° with respect to the crystalline c axis) propagating in parallel in close proximity in self-defocusing LiNbO3:Fe crystal. Experimental results reveal that a 2D white-light dark soliton pair only experiences attractive forces when their mutual separation is sufficiently small (<60μm), and the degree of the attraction depends on their mutual separation and their arrangement direction. When the separation is larger than 60μm, the interaction is not evident.
|
Keywords:
42.65.Tg
42.65.-k
42.70.Nq
|
|
Received: 11 July 2006
Published: 24 February 2007
|
|
PACS: |
42.65.Tg
|
(Optical solitons; nonlinear guided waves)
|
|
42.65.-k
|
(Nonlinear optics)
|
|
42.70.Nq
|
(Other nonlinear optical materials; photorefractive and semiconductor materials)
|
|
|
|
|
[1] Stegeman G I and Segev M 1999 Science 286 1518 [2] Kodama Y and Nozaki K 1987 Opt. Lett. 12 1038 [3] Islam M N 1990 Opt. Lett. 15 417 [4] Krolikowski W and Holmstrom S A 1997 Opt. Lett. 22369 [5] Lerner L, Mitchell D J and Snyder A W 1994 Opt. Lett. 19 1302 [6] Ku T S, Shih M F, Sukhorukov A A and Kivshar Y S 2005 Phys.Rev. Lett. 94 063904 [7] Krolikowski W, Saffman M, Luther-Davies B and Denz C 1998 Phys. Rev. Lett. 80 3240 [8] Lu Y, Liu S M, Zhang G Q, Guo R and Zhu N 2004 J. Opt. Soc.Am. B 21 1674 [9] Wang H C and She W L 2005 Chin. Phys. Lett. 22 128 [10] Li J P, Lu K Q, Zhao W, Yang Y L, Zhu X P and Guo X H 2005 Chin. Phys. Lett. 22 1423 [11] Gao Y M, Liu S M, Guo R, Liu Z H and Song T 2006 Opt.Commun. 259 738 [12] Gao Y M, Liu S M, Guo R, Liu Z H and Song T 2005 Appl.Opt. 44 6948 [13] Zhang X H, Liu S M, Guo R, Wang D Y, Liu Z H and Lu Y 2005 Opt. Commun. 252 84 [14] Gao Y M, Liu S M, Guo R, Zhang X H and Lu Y 2005 Appl.Opt. 44 1533 [15] Zozulya A A and Anderson D Z 1995 Phys. Rev. A 51 1520 [16] Nikolov N I, Neshev D, Krolikowski W, Bang O, Rasmussen J J andChristiansen P L 2004 Opt. Lett. 29 286 [17] Królikowski W, Bang O, Nikolov N I, Neshev D, Wyller J, RasmussenJ J and Edmundson D 2004 J. Opt. B: Quantum Semiclass. Opt. 6 S288 [18] Hu W, Zhang T, Guo Q, Xuan L and Lan S 2006 Appl. Phys.Lett. 89 071111 [19] Dreischuh A, Neshev D N, Petersen D E, Bang O and Krolikowski W2006 Phys. Rev. Lett. 96 043901 |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|