Local tuning of photonic crystal cavities using chalcogenide glasses
We demonstrate a method to locally change the refractive index in planar optical devices by photodarkening of a thin chalcogenide glass layer deposited on top of the device. The method is used to tune the resonance of GaAs-based photonic crystal cavities by up to 3 nm at 940 nm, with only 5% deterioration in cavity quality factor. The method has broad applications for postproduction tuning of photonic devices.
|Collections||ANU Research Publications|
|Source:||Applied Physics Letters|
|01_Faraon_Local_tuning_of_photonic_2008.pdf||Published Version||312.6 kB||Adobe PDF|