Image and Coherence Transfer in the Stimulated Down-conversion Process

Details Image and Coherence Transfer in the Stimulated Down-conversion Process Image and Coherence Transfer in the Stimulated Down-conversion Process

2000-10-06

arxiv.org/abs/quant-ph/0010025v1

Phys. Rev. A, 60, 5074 (1999)

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevA.60.5074

The intensity transverse profile of the light produced in the process of stimulated down-conversion is derived. A quantum-mechanical treatment is used. We show that the angular spectrum of the pump laser can be transferred to the stimulated down-converted beam, so that images can also be transferred from the pump to the down-converted beam. We also show that the transfer can occur from the stimulating beam to the down-converted one. Finally, we study the process of diffraction through an arbitrarily shaped screen. For the special case of a double-slit, the interference pattern is explicitly obtained. The visibility for the spontaneous emitted light is in accordance with the van Cittert - Zernike theorem for incoherent light, while the visibility for the stimulated emitted light is unity. The overall visibility is in accordance with previous experimental results.

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