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Proceedings Paper

Materials and devices for ultrafast all-optical processing
Author(s): Toshihiko Nagamura; Atsushi Naito; Yasuyuki Nagai; Ryuji Matsumoto; Yasushi Yokoyama; Akihiro Furube; Shigeo Murata
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Paper Abstract

Molecular photonics, information processing based on strong interactions of photons and molecules, has attracted much attention, since it can fully utilize many superior properties of both photons and molecules. We have been developing materials showing ultrafast absorption changes in the visible to near infrared regions by photoinduced electron transfer and reverse reactions or by excited electronic state formation. Guided wave mode (GWM) geometry composed of a prism, a metal thin film, and a photoresponsive polymer film successfully achieved sensitive, all optical, and very fast control of reflectance by transient or persistent changes of GWM conditions by means of photoinduced complex refractive index changes upon nanosecond to femtosecond laser excitation. All-optical parallel control of reflected probe light by pump (writing) light was demonstrated by photochromic spiropyran or fulgide, and various metallophthalocyanines dispersed in appropriate polymers.

Paper Details

Date Published: 4 April 2005
PDF: 12 pages
Proc. SPIE 5724, Organic Photonic Materials and Devices VII, (4 April 2005); doi: 10.1117/12.601404
Show Author Affiliations
Toshihiko Nagamura, Kyushu Univ. (Japan)
Atsushi Naito, Shizuoka Univ. (Japan)
Yasuyuki Nagai, Shizuoka Univ. (Japan)
Ryuji Matsumoto, Kyushu Univ. (Japan)
Yasushi Yokoyama, Yokohama National Univ. (Japan)
Akihiro Furube, National Institute of Advanced Industrial Science and Technology (Japan)
Shigeo Murata, National Institute of Advanced Industrial Science and Technology (Japan)


Published in SPIE Proceedings Vol. 5724:
Organic Photonic Materials and Devices VII
James G. Grote; Toshikuni Kaino; Francois Kajzar, Editor(s)

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