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Updated: Jun 20, 2026

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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
Mirrorless coherent oscillation due to six-beam vectorial mixing in photorefractive crystals
Optics Letters
|September 12, 2009
Abstract:
A cw mirrorless oscillation is observed in a photorefractive LiNbO(3):Cu crystal when the crystal is exposed to two nearly counterpropagating pump waves from an Ar(+) laser. This oscillation is shown to result from a parametric vectorial six-beam interaction in a medium with a photovoltaic nonlinearity.

