Nonlinear Optics in Single Crystal Films and Special Device Structures of Selected Organic Materials

单晶薄膜中的非线性光学和所选有机材料的特殊器件结构

• 批准号: 9906243
• 负责人: Mrinal Thakur
• 金额: $ 8万
• 依托单位: Auburn University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-10-01 至 2002-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9906243&HistoricalAwards=false
• 关键词: Nonlinear; Optics; Single; Crystal; Films

The proposed research is a renewal of a program under a prior NSF award ECS-9634268 entitled, "Nonlinear Optics in Single Crystal Microstructure of Organic Materials". Under this grant, the PI has succeeded in making the single crystal organic films using the "shear method" he developed. He has achieved various organic films with fairly large size (2 cm2). Measurements made on these materials have shown large second order susceptibilities for the films. The electro-optic coefficients of these films also show somewhat larger values than that of lithium niobate. As a result he has demonstrated a single-pass elecro-optic modulator with a modulation depth of 20% using a 3-micron thick single crystal film of DAST at low ac field (1V/um at 4 kHz). The proposed renewal program is for a period of 12 months. Work includes continuation of the development of the single crystal film to achieve large second and third order optical nonlinearities, performing detailed optical measurements over a wide wavelength range, and demonstration of high-speed EO modulator performance.

拟议的研究是先前 NSF 奖项 ECS-9634268 下一项名为“有机材料单晶微结构中的非线性光学”的项目的更新。在这笔资助下，PI利用他开发的“剪切法”成功地制备了单晶有机薄膜。 他已经获得了各种相当大尺寸（2 cm2）的有机薄膜。 对这些材料进行的测量表明薄膜具有很大的二阶敏感性。这些薄膜的电光系数也显示出比铌酸锂稍大的值。 结果，他在低交流场（4 kHz 下 1V/um）下使用 3 微米厚的 DAST 单晶薄膜展示了调制深度为 20% 的单通道电光调制器。拟议的续签计划为期 12 个月。工作包括继续开发单晶薄膜以实现大的二阶和三阶光学非线性、在宽波长范围内进行详细的光学测量以及高速电光调制器性能的演示。