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Streak‐camera observation of 200‐ps recovery of an optical gate in a windowless GaAs étalon array

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8 Author(s)
Lee, Y.H. ; Optical Sciences Center, University of Arizona, Tucson, Arizona 85721 ; Warren, M. ; Olbright, G.R. ; Gibbs, H.M.
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Fast recovery (≪200 ps) of an optical gate at room temperature in a GaAs étalon is observed by eliminating the top AlGaAs window and defining 9×9 μm2 pixels. This recovery time is at least an order of magnitude shorter than that for previous étalons consisting of AlGaAs/GaAs/AlGaAs heterostructures. The fast recovery is attributed to faster surface recombination of carriers at the GaAs‐dielectric mirror interface as compared to that at a GaAs‐AlGaAs interface.

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Applied Physics Letters  (Volume:48 ,  Issue: 12 )