Optical Limiting in Phthalocyanine Solutions and in Pure Liquid Phthalocyanines
Optical Limiting in Phthalocyanine Solutions and in Pure Liquid Phthalocyanines
复制标题
酞菁溶液和纯液体酞菁中的光学限制
DOI：
10.1557/proc-479-23
复制
发表时间：
1997
期刊：
影响因子：
--
通讯作者：
A. Snow
中科院分区：
文献类型：
--
作者：
S. Flom;R. Pong;J. Shirk;F. Bartoli;R. F. Cozzens;M. E. Boyle;A. Snow
对一种纯净的液态铅取代酞菁进行了光限幅、简并四波混频和瞬态吸收实验。尽管其周边取代模式不同，但在其他酞菁溶液中观察到的良好光限幅所涉及的光物理机制在这种纯液体中仍然存在。结果表明，该液体在大部分可见光谱范围内，激发态吸收截面超过基态吸收截面。混合吸收/折射非线性响应被证明对四波混频和光限幅响应均有贡献。文中对相关机制和状态进行了讨论。
Optical limiting, degenerate four-wave mixing and transient absorption experiments have been performed on a neat liquid lead substituted phthalocyanine. The photophysical mechanisms responsible for the good optical limiting observed in other phthalocyanine solutions are maintained in this pure liquid despite its different peripheral substitution pattern. The liquid is shown to have excited state absorption cross sections that exceed those of the ground state through much of the visible spectrum. Hybrid absorptive/refractive nonlinear response is demonstrated to contribute to both the four-wave mixing and optical limiting response. The mechanism and states responsible are discussed.