The all-optical recording of a microscopic second-order nonlinear susceptibility in a new azo dye pendant polyurethane polymer is investigated. An experimental configuration which permits self-phase matched was used. The peak value of the phase-matched lightinduced second order nonlinear optical sus
✦ LIBER ✦
Second-order nonlinear optical properties and relaxation dynamics of aligned cross-linked polyurethanes with hemicyanine-type chromophores
✍ Scribed by Lee, Kwang-Sup; Choi, Sun-Woong; Woo, Han Young; Moon, Ki-Jeong; Shim, Hong-Ku; Jeong, Mi-Yun; Lim, Tong-Kun
- Book ID
- 115395398
- Publisher
- Optical Society of America
- Year
- 1998
- Tongue
- English
- Weight
- 254 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0740-3224
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## Abstract Active nonlinear optical nitro‐substituted thiazole, benzothiazole, and thiadiazole chromophores were prepared and condensed with tolylene‐2,4‐diisocyanate (TDI) and 4,4′‐methylenedi(phenyl isocyanate) (MDI) to yield a series of polyurethanes. The resulting polyurethanes were characteri