NONLINEAR-OPTICAL TRANSMISSION OF POLYQUINOLINE THIN-FILM AT 532 NM

被引：2
作者：
LEE, SH
RHEE, BK
机构：
[1] Department of Physics, Sogang University, Seoul, 100-611
来源：
OPTICAL AND QUANTUM ELECTRONICS | 1995年 / 27卷 / 05期
关键词：
D O I：
10.1007/BF00563572
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Optical nonlinearities of polyquinoline thin film were studied by measuring fluence-dependent transmission with nanosecond pulses from the second harmonic of an Nd:YAG laser. It is found that the origin of nonlinearity is due to the excited-state absorption in the nanosecond domain. To our knowledge, we report the first simultaneous determination of the decay time for the excited-state and the excited-state absorption cross-section of polyquinoline by analysing the linear slopes of the transmission versus fluence plot, which are dependent on pulsewidth.
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页码：371 / 377
页数：7
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