Stable second-order optical nonlinearity of urethane-urea copolymers

被引：16
|
作者：
Tsuchimori, M
Watanabe, O
Ogata, S
Okada, A
机构：
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1996年 / 35卷 / 4A期
关键词：
urethane-urea copolymer; polyurethane; corona poling; second-harmonic generation; poling temperature; temporal stability;
D O I：
10.1143/JJAP.35.L444
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Second-order nonlinear optical properties of corona-poled urethane-urea copolymers have been studied by the second-harmonic generation (SHG) method. As compared with a polyurethane, the copolymers exhibited higher optimum poling temperature and better temporal stability of SHG coefficients (d(33)) For one of the copolymers, d(33) at a fundamental wavelength of 1064 nm was 190 pm/V, and remained at 75% of the initial value after heat treatment at 100 degrees C for 300 h.
引用
收藏
页码：L444 / L446
页数：3
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