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Conferences > CLEO_SI > 2012 > CF1M > CF1M.7

Increased Detectivity and Operation Temperature in Photonic Crystal Slab Quantum Well Photodetectors

S. Kalchmair, R. Gansch, E. Mujagić, S. I. Ahn, P. Reininger, G. Lasser, A. M. Andrews, H. Detz, T. Zederbauer, W. Schrenk, and G. Strasser

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Abstract

Detectivity enhancement up to 20 times is achieved by fabricating a quantum well infrared photodetector as a photonic crystal slab. This enhancement is the combined effect of increased responsivity and noise current reduction. We report a peak detectivity of 2.6E10 cmHz1/2/W at 80 K and were able to operate the device up to 200 K.

© 2012 Optical Society of America

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