Photoactive Periodic Media

Tahar Benmessaoud,Jason Riordon,Alexandre Melanson,P V Ashrit,Alain Hache

APPLIED PHYSICS LETTERS（2009）

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摘要

Photoactive (photochromic) multilayers of MoO(3)/SiO(2) are studied optically before and after UV excitation. Enhancement in photochromic activity is observed over a wide spectrum and in particular near the photonic band edges where optical changes are up to 25 times greater than in similarly prepared bulk, nonperiodic samples. Applications to light-sensitive devices are discussed.

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关键词

molybdenum compounds, multilayers, photochromism, photonic band gap, silicon compounds, tungsten compounds

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