Two-photon conductivity in semiconductors: a new tool for the study of the quantum properties of light

E. Rosencher; F. Boitier; A. Godard; C. Fabre

doi:10.1117/12.913974

20 January 2012 Two-photon conductivity in semiconductors: a new tool for the study of the quantum properties of light

E. Rosencher, F. Boitier, A. Godard, C. Fabre

Proceedings Volume 8268, Quantum Sensing and Nanophotonic Devices IX; 826823 (2012) https://doi.org/10.1117/12.913974
Event: SPIE OPTO, 2012, San Francisco, California, United States

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.

Citation Download Citation

E. Rosencher, F. Boitier, A. Godard, and C. Fabre "Two-photon conductivity in semiconductors: a new tool for the study of the quantum properties of light", Proc. SPIE 8268, Quantum Sensing and Nanophotonic Devices IX, 826823 (20 January 2012); https://doi.org/10.1117/12.913974

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