2019年第80回応用物理学会秋季学術講演会

講演情報

一般セッション(口頭講演)

4 JSAP-OSA Joint Symposia 2019 » 4.6 Quantum Optics and Nonlinear Optics

[21p-E214-1~4] 4.6 Quantum Optics and Nonlinear Optics

2019年9月21日(土) 13:15 〜 14:45 E214 (E214)

平野 琢也(学習院大)

14:30 〜 14:45

[21p-E214-4] Optical solitons in nematic liquid crystals: nonlocal and saturation effects

Panayotis Panayotaros1、Juan Pablo Borgna2、Diego Rial3、Constanza Sanchez de la Vega3 (1.Univ. Nac. Aut. Mexico、2.Univ. San Martin、3.Univ. Buenos Aires)

キーワード:nematic liquid crystals, optical solitons, nonlocal and thermal media

We present mathematical results on the formation of stable optical solitons in nematic liquid crystals. The interaction of the laser beam with the nematic liquid crystal director field near the beam is modeled by a nonlinear Schrödinger equation coupled to a differential equation for the nonlocal response of the material. The simplest models assume that the beam causes a small change in the nematic director angle and can describe adequately the stabilization of the beam above a power threshold, as well as diffraction for small optical power [1], [2]. We present recent results on a more general model that is valid for large changes in the director angle and can also capture the saturation of the nonlinearity in a physically meaningful way. This is joint work with Juan Pablo Borgna, U. San Martin, Argentina, Diego Rial, and Constanza Sanchez de la Vega, U. Buenos Aires, Argentina.