Described herein are novel azo-benzene type chromophores. The chromophores are useful in photochromic compositions comprising a polymer matrix and a chromophore, wherein the chromophore is a novel azo-benzene type structure. The photochromic composition is photoresponsive upon irradiation by at least one wavelength of laser light across the visible light spectrum. Photochromic devices which comprise the novel azo-benzene type chromophore compound show significantly higher photoinduced birefringence, higher diffraction efficiency, and brighter images than devices that comprise well known azo-benzene chromophores. The photochromic composition may include a liquid crystal.
本文描述了一种新型的
偶氮苯类色团。这些色团在包括
聚合物基质和色团的光致变色组合物中具有用途,其中色团是一种新型的
偶氮苯类结构。所述光致变色组合物在可见光谱范围内至少一个激光光波长的照射下具有光响应性。包含新型
偶氮苯类色团化合物的光致变色器件显示出比包含众所周知的
偶氮苯色团的器件具有显著更高的光诱导双折射、更高的衍射效率和更亮的图像。光致变色组合物可能包括
液晶。