论文标题
椭圆极化激光束在胆固醇液晶的各向同性阶段的自我关注中的极化奇异性,接近相变温度
Polarization singularities in the self-focusing of an elliptically polarized laser beam in an isotropic phase of cholesteric liquid crystal close to the temperature of phase transition
论文作者
论文摘要
这项工作致力于在过渡温度靠近胆汁固醇液晶的各向同性阶段的激光束的自我表现,以较宽的参数值范围,表征了培养基的非线性光学响应的非局部性,在培养基中脱离介质的非线性光学响应,在介质中脱离了激光辐射和液态液体液体的介质的功能。研究了辐射的广泛参数和培养基的两种极化成分的主要奇异性的起源,以表征手性培养基中非线性光学反应的非局部性的不同值。对于每个值,根据培养基和辐射的参数绘制了两个极化组分的主要奇异性的可见性图,并发现它们的不对称性。
The work is devoted to the self-action of laser beams propagating in the isotropic phase of a cholesteric liquid crystal near the transition temperature to the mesophase in a wide range of parameter values characterizing the nonlocality of the nonlinear optical response of the medium, defocusing in the medium, the power of incident laser radiation and diffraction in the liquid crystal. The origin of the primary singularities of both polarization components of radiation in a wide range of parameters of radiation and the medium is investigated for different values of the parameter characterizing the nonlocality of nonlinear optical response in chiral medium. For each of the values, the visibility diagrams of the primary singularities of both polarization components are plotted depending on the parameters of the medium and radiation, and their asymmetry is found.