Visible-infrared Optical Wave Mixings and Nonlinear Processes with Liquid Crystals

可见光-红外光波混合和液晶非线性过程

• 批准号: 8712078
• 负责人: Iam-Choon Khoo
• 金额: $ 11万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-09-01 至 1990-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8712078&HistoricalAwards=false
• 关键词: Visible; infrared; Optical; Wave; Mixings

The objective of this research program is to further explore and exploit the extraordinarily large optical nonlinearities of liquid crystals for novel nonlinear optical processes and applications. Recent studies by the PI have confirmed the possibilities of utilizing the orientational and thermal nonlinearities in optical wave front conjugation with gains, beam amplifications and other real-time adaptive processes such as ring and self-oscillations and laser intensity switching, for visible as well as infrared lasers. Phase locking of lasers, speckle noise-free phase conjugation, image correlations and convolutions have also shown to be feasible. The proposed studies will include the development of detailed theories for some new fundamental aspects of these wave mixing results (e.g., beam and image amplification in a Kerr medium, multi-beam interactions with diffusive-type nonlinearities, self-oscillations in phase conjugations) and parallel detailed experimental measurements and documentations of these processes. It is anticipated that several important theories, concepts, and useful visible-far infrared nonlinear optical imaging, optical processing and adaptive optic devices will emerge from these studies.

该研究项目的目的是进一步探索和 利用液体极大的光学非线性 用于新型非线性光学工艺和应用的晶体。 PI最近的研究证实了利用 光学波前中取向非线性和热非线性 与增益、光束放大和其他实时 自适应过程，如环形和自振荡和激光 强度切换，用于可见光和红外激光。 相 激光锁定，无散斑噪声相位共轭，图像 相关性和卷积也已被证明是可行的。 拟议的研究将包括发展详细的理论 对于这些波混合结果的一些新的基本方面（例如， 克尔介质中的光束和图像放大，多光束相互作用 具有扩散型非线性，相位自振荡 共轭）和平行详细的实验测量， 记录这些过程。 据估计， 重要的理论、概念和有用的可见-远红外 非线性光学成像、光学处理和自适应光学 这些研究将产生新的设备。