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首页> 外文期刊>Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter >Characteristics of optically controllable focusing lens generated in guest-host liquid crystals
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Characteristics of optically controllable focusing lens generated in guest-host liquid crystals

机译：客体-宿主液晶中产生的光学可控聚焦透镜的特性

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摘要

A detailed analysis of the recently proposed [Appl. Phys. Lett. 74 (1999) 3429] focal length converter using guest-host liquid crystals (GHLCs) is presented. The focal length of the laser-induced lens was varied over a wide range by using both large optical nonlinearity and anisotropic complex refractive indices in GHLCs. The nonlinear phase modulation was generated by irradiating the GHLC with a frequency-doubled Nd:YAG laser beam (wavelength; 532 nm) having a Gaussian profile. A He-Ne laser beam (wavelength; 633 nm) passed at the same point as the frequency-doubled Nd-YAG laser beam spot and was focused due to the phase modulation. The properties of the all-optical focal length converter were strongly dependent on the GHLC cell parameters including dye concentration and thickness of the GHLC layer. (C) 2002 Elsevier Science B.V. All rights reserved. [References: 19]
机译：对最近提出的[Appl。物理来吧[74（1999）3429]提出了使用客体-主体液晶（GHLC）的焦距转换器。通过在GHLC中使用大的光学非线性和各向异性复折射率，激光诱导透镜的焦距可以在很宽的范围内变化。通过用具有高斯分布的倍频Nd：YAG激光束（波长; 532 nm）照射GHLC来生成非线性相位调制。 He-Ne激光束（波长; 633 nm）在与倍频Nd-YAG激光束斑相同的位置通过，并由于相位调制而聚焦。全光学焦距转换器的特性在很大程度上取决于GHLC单元参数，包括染料浓度和GHLC层的厚度。 （C）2002 Elsevier Science B.V.保留所有权利。 [参考：19]

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