International Postdoctoral Fellows Program: Quasi- Phasematched Integrated OPO's in Lithium Niobate and KTP

9505350桑德海默国际初级研究员和博士后研究员计划使美国科学家和工程师能够在国外进行3至24个月的研究。该项目的奖项提供了联合研究的机会，并提供了使用国外独特或互补的设施、专业知识和实验条件的机会。这一奖项将支持迈克尔·L·桑德海默博士为期12个月的博士后研究访问，与丹尼尔·B·奥斯托夫斯基教授在法国索菲亚安提波利斯大学合作。这项奖励将支持法国政府提供的一个由交易所Chateaubriand启动的项目的第二年。该项目包括在锂离子通道光波导中实现连续准相位匹配光学参量振荡器(OPO)，首先测量参量荧光和增益。然后，将制造一个谐振腔来实现OPO，这将通过在波导上贴上反射镜或直接在波导端涂覆涂层来完成。初步实验将用连续钛宝石激光器来演示这一原理。到目前为止，这种研究的驱动力一直是寻找紧凑、高效的二极管泵浦蓝光光源。OPO设备的二极管泵浦将产生一个紧凑、可调谐的全固态激光光源，覆盖重要的1.3微米和1.55微米电信窗口，并提供可用于光谱分析、大气污染监测以及生物和医疗应用的波长。***

9505350 Sundheimer The International Junior Investigator and Postdoctoral Fellows Program enables U.S. scientists and engineers to conduct three to twenty-four months of research abroad. The program's awards provide opportunities for joint research, and the use of unique or complementary facilities, expertise and experimental conditions abroad. This award will support a twelve-month postdoctoral research visit by Dr. Michael L. Sundheimer to work with Professor Daniel B. Ostrowsky at the Universite de Nice Sophia Antipolis in France. This award will support the second year of a project started under a Bourse Chateaubriand provided by the French government. This project involves the implementation of a CW quasi-phasematched optical parametric oscillator (OPO) in lithium niobate channel waveguides, beginning with measurements of parametric fluorescence and gain. A resonant cavity will then be made to realize the OPO, which will be done by affixing mirrors to the waveguide or, with coatings applied directly to the waveguide ends. Initial experiments will be done with a CW Ti:Sapphire laser to demonstrate the principle. The driving force to-date for such research has been the search for compact, efficient diode-pumped blue-light sources. Diode-pumping of an OPO device would create a compact, tunable, all solid-state laser source covering the important 1.3 and 1.55 um telecommunications windows as well as providing wavelengths useful for spectroscopy, atmospheric pollution monitoring, and biological and medical applications. ***