Investigation of the Dispersion of Nonlinear Absorption and Refraction in Organics

有机物中非线性吸收和折射色散的研究

• 批准号: 9510046
• 负责人: Eric Van Stryland
• 金额: $ 31.09万
• 依托单位: The University of Central Florida Board of Trustees
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-09-15 至 1999-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9510046&HistoricalAwards=false
• 关键词: Investigation; Dispersion; Nonlinear; Absorption; Refraction

9510046 Van Stryland The PI proposes to apply the knowledge he has gained in understanding the nonlinear response of inorganic materials (both semiconductors and dielectrics) to organic materials. In particular he will concentrate on specific classes of organic materials such as macrocyclic dyes that have been shown to exhibit strong nonlinearities. He will also investigate resonant nonlinearities in these materials. For example, metallophthalocyanines and metallo-naphthalocyanines exhibit increasing absorption from excited state absorption (reverse saturable absorbers). Such nonlinearities are proving useful for optical limiting. In addition, he will further develop a numerical modeling for determining the propagation of light through thick nonlinear media. This modeling allows optimized use of nonlinear absorption and nonlinear refraction for applications such as optical limiting. His past research investigated two-photon absorption (2PA), bound electronic nonlinear refraction characterized by n2, and free-carrier effects in semiconductors and dielectrics. He has recently extended these measurements to molecular species and observed analogous nonlinearities. ***

9510046货车Stryland PI建议将他在理解无机材料（半导体和半导体）对有机材料的非线性响应方面所获得的知识应用于有机材料。 特别是，他将集中在特定类别的有机材料，如大环染料，已被证明具有很强的非线性。 他还将研究这些材料中的共振非线性。 例如，金属酞菁和金属萘酞菁显示出从激发态吸收增加的吸收（反饱和吸收剂）。 这种非线性被证明对于光学限制是有用的。 此外，他还将进一步开发用于确定光通过厚非线性介质传播的数值模型。 这种建模允许优化使用非线性吸收和非线性折射的应用，如光学限制。 他过去的研究调查了双光子吸收（2PA），束缚电子非线性折射的特点是n2，和自由载流子在半导体和半导体中的影响。 他最近将这些测量扩展到分子种类，并观察到类似的非线性。 ***