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Composite spatial solitons in a saturable nonlinear bulk medium |
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| Authors: | C Weilnau W Królikowski EA Ostrovskaya M Ahles M Geisser G McCarthy C Denz YS Kivshar B Luther-Davies |
| Institution: | (1) Institute of Applied Physics, Darmstadt University of Technology, Hochschulstr. 6, 64289 Darmstadt, Germany, DE;(2) Laser Physics Centre, Australian National University, Canberra, ACT 0200, Australia, AU;(3) Optical Sciences Centre, Australian National University, Canberra, ACT 0200, Australia, AU |
| Abstract: | We review the generation of the recently predicted multi-component spatial optical solitons in a saturable nonlinear bulk medium. We present numerical simulations for an effectively isotropic model and experimental results for a set of different combinations of a Gaussian beam co-propagating incoherently with a beam of a more complex internal structure, such as a higher order transverse laser mode. We discuss the different formation processes and the general properties of a variety of different dipole-mode composite solitons and expand our investigations to the generation of a quadrupole-mode composite soliton. Received: 1 December 2000 / Revised version: 12 January 2001 / Published online: 21 March 2001 |
| Keywords: | PACS: 42 65 Tg 05 45 Yv 42 65 Hw |
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