[13p-PB8-1~21] 12.3 Functional Materials and Novel Devices

[13p-PB8-1] Relaxation Mechanism of Photo-induced Refractive Index Changes in Azo-benzene-doped PMMA Films

〇Takafumi Sassa¹, Masuki Kawamoto¹, Takashi Isoshima¹, Tomoki Shimizu^1,2, Takashi Fujihara^1,3, Takshi Kinoshita², Koji Ishibashi¹ (1.RIKEN, 2.Keio Univ., 3.ISIT)

Keywords:Azo benzene,Photo-induced refractive index change,Relaxation process

A relaxation mechanism of photo-induced refractive index changes in azo-benzene films is elucidated. It is shown that in the sample used (BrOAzNO₂/PMMA film) the orientational relaxazation of trans-azo molecules was proceeded in the early stage of the relaxation process.