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Positive and negative phototunability of chalcogenide (AMTIR-1) microdisk resonator

Singh, Neetesh; Hudson, Darren D; Wang, Rongping; Mägi, Eric C; Choi, Duk-Yong; Grillet, Christian; Luther-Davies, Barry; Madden, Stephen; Eggleton, Benjamin J


We demonstrate externally photo-induced partially-reversible tuning of the resonance of a microdisk made of AMTIR-1 (Ge(33)As(12)Se(55)). We have achieved for the first time, to the best of our knowledge, both positive and negative shift in a microresonator with external tuning. A positive resonance shift of 1 nm and a negative resonance shift of 0.5 nm on a single microdisk has been measured. We have found that this phenomenon is due to initial photo-expansion of the microdisk followed by the...[Show more]

CollectionsANU Research Publications
Date published: 2015-04-06
Type: Journal article
Source: Optics express
DOI: 10.1364/OE.23.008681


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