Photoinduced birefringence of azodye-doped materials by a femtosecond laser.
Birefringence in azodye-doped polymethylmethacrylate and azodye-doped silica hybrid materials was induced by the two-photon excitation of a femtosecond laser. The growth and the relaxation characteristics of the photoinduced birefringence in the two types of material were investigated, and the probe transmittance for the induced birefringence was estimated to be 92%. Furthermore, an optical image storage based on this photoinduced birefringence was demonstrated.
Si
Jinhai
J
Photon Craft Project, Japan Science and Technology Agency, Keihanna Plaza, Super Laboratory 2-5, 1-7 Hikaridai, Seika-cho, Kyoto 619-0237, Japan. jhsi@photon.jst.go.jp
Qiu
Jianrong
J
Guo
Jiayu
J
Qian
Guodong
G
Wang
Minquan
M
Hirao
Kazuyuki
K