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Proceedings Paper

Two-photon conductivity in semiconductors: a new tool for the study of the quantum properties of light
Author(s): E. Rosencher; F. Boitier; A. Godard; C. Fabre
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Paper Abstract

Two-photon absorption in GaAs occurs once two photon impinge on the semiconductor surface within the virtual state lifetime, i.e. few fs. Two photon conductivity (TPC) in GaAs is thus particulary well fitted to measure photon coincidence rates in the femtosecond range. Using this new TPC technique we have evidenced various original quantum properties of light, such as photon bunching in thermal light and extrabunching of twin beams. This technique opens new avenues in quantum optics, for quantum cryptography, ghost imaging or non linear optics.

Paper Details

Date Published: 20 January 2012
PDF: 6 pages
Proc. SPIE 8268, Quantum Sensing and Nanophotonic Devices IX, 826823 (20 January 2012); doi: 10.1117/12.913974
Show Author Affiliations
E. Rosencher, ONERA (France)
Ecole Polytechnique (France)
F. Boitier, ONERA (France)
A. Godard, ONERA (France)
C. Fabre, Lab. Kastler, CNRS, Univ. Pierre et Marie Curie (France)

Published in SPIE Proceedings Vol. 8268:
Quantum Sensing and Nanophotonic Devices IX
Manijeh Razeghi; Eric Tournie; Gail J. Brown, Editor(s)

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