RESONANT SUBPICOSECOND DEGENERATE 4-WAVE-MIXING FOR A MAINCHAIN POLYMER WITH A DEFINITE SHORT PI CONJUGATION

被引：2
作者：
OOBA, N
TOMARU, S
KURIHARA, T
MORI, Y
SHUTO, Y
KAINO, T
机构：
[1] NTT Opto-electronics Laboratories, Nippon Telegraph and Telephone Corporation, Tokai, Ibaraki
来源：
CHEMICAL PHYSICS LETTERS | 1993年 / 207卷 / 4-6期
关键词：
D O I：
10.1016/0009-2614(93)89031-C
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The subpicosecond time-resolved degenerate four-wave mixing (DFWM) technique is applied to evaluate the third-order optical nonlinearity, chi(3) (omega; omega, - omega, omega), and its decay dynamics for a symmetrical short pi-conjugated mainchain polymer, pSBAC for short. The chi(3)/alpha value of 6 X 10(-14) esu cm for pSBAC is the same as that reported for many other pi-conjugated polymers. We propose that the concept of real-space filling accounts for the observed chi(3)/alpha value in pSBAC. The picosecond dynamics of the transient grating response for pSBAC is also discussed in comparison with that of the pi-conjugated polymers.
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页码：468 / 472
页数：5
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