El-Kallassi, PFerrini, RZuppiroli, LLe Thomas, NHoudré, RBerrier, AAnand, STalneau, A2007-05-232007-05-232007-05-23200710.1364/JOSAB.24.002165https://infoscience.epfl.ch/handle/20.500.14299/7318WOS:00024984250001911275The optical tuning of InP-based planar photonic crystals (PhCs) infiltrated with a photo-responsive liquid crystal system is presented. Photo-induced 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 diagramPhotonic crystalsIntegrated optics devicesLiquid crystalsLiquid-crystal devicesPhotochromesPhotochemistrytext::journal::journal article::research article