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Journal articles
Efficient Two-Photon Light Amplification by a Coherent Biexciton Wave
Abstract : A reversible coupling between photon pair states and a long-lived, highly coherent biexciton wave in CuCl allows efficient phase-sensitive two-photon amplification or attenuation of ultrashort light pulses. We demonstrate a gain of 350 cm-1 for a pump intensity of 1 MW/cm2, nearly 2 orders of magnitude higher than that achievable with conventional parametric crystal amplifiers. We develop a theoretical model that describes this new type of parametric converter where the light pump is replaced by a coherent biexciton wave and show that it is well suited for the generation of entangled photons and the squeezing of an optical beam with ultrafast time gating.
keyword :
excitons
https://hal-polytechnique.archives-ouvertes.fr/hal-00463679
Contributor : Aurélien Houard <>
Submitted on : Sunday, March 14, 2010 - 2:23:44 PM
Last modification on : Monday, May 17, 2021 - 12:00:04 PM
Contributor : Aurélien Houard <>
Submitted on : Sunday, March 14, 2010 - 2:23:44 PM
Last modification on : Monday, May 17, 2021 - 12:00:04 PM