Stimulated emission of two photons is observed experimentally in the parametric amplification process and is compared to a three-photon interference scheme. We find that the underlying physics of stimulated emission is simply the constructive interference due to photon indistinguishability. So the observed signal enhancement upon the input of photons is a result of multi-photon interference of the input photons and the otherwise spontaneously emitted photon from the amplifier.

arXiv:quant-ph/0702056Feb 6, 20070 citations

Physics Letters A

Pulse amplification by stimulated two-photon emission

Lawrence L. Hope, Milton O. Vassell

Published Mar 1, 1970• 8 citations

Publisher

DOI: 10.1016/0375-9601(70)90959-x

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