Two-photon absorbing organic chromophores for optical limiting

被引：27

作者：

Ehrlich, JE ^{[1
]}

Wu, XL ^{[1
]}

Lee, IYS ^{[1
]}

Heikal, AA ^{[1
]}

Hu, ZY ^{[1
]}

Rockel, H ^{[1
]}

Marder, SR ^{[1
]}

Perry, JW ^{[1
]}

机构：

[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

来源：

MATERIALS FOR OPTICAL LIMITING II | 1997年 / 479卷

关键词：

D O I：

10.1557/PROC-479-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Strong optical limiting and large two-photon absorptivities are reported for a class of bis-donor diphenylpolyene derivatives with varying polyene bridge lengths. These molecules exhibit strong optical limiting using nanosecond pulses over a broad spectral range. Bis(diphenylamino)stilbene exhibits a 90 nm red shift of its optical limiting band, and only a minimal shift of about 13 nm of its lowest one-photon electronic absorption band relative to bis(di-n-butylamino)stilbene. This suggests a potential for broadband optical limiting with high transparency using mixtures of such compounds. Pulse width dependent nonlinear transmission measurements suggest that two-photon pumped excited-state absorption contributes significantly to the limiting of nanosecond pulses.

引用

页码：9 / 15

页数：7