Efficient Photo-Response of Azobenzene-based Compounds for Holographic Recording

Author:

Hsu Tzu-Chien,Wang Lu-Yu,Lee Fang-YongORCID,Su Wei-HungORCID

Abstract

One of the challenges for azobenzene-based materials in fabricating rewritable surface relief gratings is the long response time in the procedure of holographic recording, making it inefficient in real-time applications. In this study, a small molecule azobenzene compound with a facile fabrication route is presented. By a total recording intensity of 200 mW/cm2, a surface relief grating with the modulation depth of 758 nm can be formed in 5 min. The ±1st order diffraction was observed immediately after the holographic recording, and the ±2nd order diffraction was produced in two seconds. Such a short response time makes it possible for use in real-time applications.

Funder

Ministry of Science and Technology, Taiwan

Publisher

MDPI AG

Subject

Inorganic Chemistry,Condensed Matter Physics,General Materials Science,General Chemical Engineering

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