Crystal structure and nonlinear optical properties of stilbazolium derivatives having shortened cut-off wavelength

Koji Sakai, Nobuo Yoshikawa, Toshihiko Ohmi, Tomoyuki Koike, Shinsuke Umegaki, Shuji Okada, Atsushi Masaki, Hiro Matsuda, Hachiro Nakanishi

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1990 · 12 citations · 0 references

Concepts

Abstract

Aiming at the shortening of absorption cut-off wavelength of inerocyanine, we prepared several stilbazoliuni derivatives. Their absorption bands are appreciably shifted to shorter and some of them have large SHG efficiencies. Among them, cyanostilbazolium p-toluenesolfonate complex has an absorption cut-off around 400nm and its nonlinear optical coefficient d33 is four times larger than d14 of POM.