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Optical tuning of planar photonic crystals infiltrated with organic molecules

Pascale El-Kallassi, Rolando Ferrini, Libero Zuppiroli, Nicolas Le Thomas, Romuald Houdré, Audrey Berrier, Srinivasan Anand, and Anne Talneau

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Abstract

The optical tuning of InP-based planar photonic crystals (PhCs) infiltrated with a photoresponsive liquid crystal system is presented. Photoinduced phase transitions of a liquid crystal blend doped with azobenzene molecules are used to tune the optical response of PhC cavities. This process is found to be reversible and stable. Several tuning conditions are analyzed in terms of the blend phase diagram.

© 2007 Optical Society of America

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