Instabilities and Phase Transitions in Light-Matter Interaction (Physics)

光与物质相互作用中的不稳定性和相变（物理学）

• 批准号: 8709528
• 负责人: Surendra Singh
• 金额: $ 7.84万
• 依托单位: University of Arkansas
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-08-01 至 1990-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8709528&HistoricalAwards=false
• 关键词: Instabilities; Phase; Transitions; Light; Matter

Experimental studies of the instabilities and phase transitions in light-matter interaction will be continued. These experiments are in part an outgrowth of the experiments being carried out with NSF support and they build upon experience and techniques developed to study fluctuation phenomena in laser- matter interactions. The proposed experiments include investigations of the effects of colored multiplicative noise on various types of laser instabilities. These experiments would be very timely in view of the current interest in noise induced transitions in nonequilibrium systems. The fluctuation and instabilities in the process of second harmonic generation will also be studied as a way of initiating a study of the instabilities of nonlinear optical systems. The proposed experiments will provide much needed experimental data in a rapidly growing field.

不稳定性和位相的实验研究 光与物质相互作用的转变将继续下去。 这些 实验部分是实验的产物， 在NSF的支持下进行，他们建立在经验的基础上， 研究激光中涨落现象的技术， 物质互动。 拟议的实验包括 乘性有色噪声对 各种激光不稳定性。 这些实验将是 鉴于目前对噪声引起的兴趣， 非平衡系统的转变。 波动和 二次谐波产生过程中的不稳定性将 也可以作为一种研究的方式， 非线性光学系统的不稳定性。 拟议 实验将提供急需的实验数据， 快速增长的领域。