Showing papers on "Light field published in 1975"
TL;DR: In this article, a quantum-mechanical model for a multiphoton laser is proposed by an obvious generalization of the usual one-photon laser model, which preserves detailed balance.
Abstract: A quantum-mechanical model for a multiphoton laser is proposed by an obvious generalization of the usual one-photon laser model. The authors consider a class of lasers which preserve detailed balance. This condition is ensured by assuming a multiphoton loss mechanism for the laser light of the same order as the multiphoton gain from the stimulated emission process. Solutions for the stationary density operator of the light field are obtained by a straightforward generalization of the techniques of Scully and Lamb. The multiphoton laser around threshold exhibits behaviour analogous to a second-order phase transition. A non-thermal distribution of multiphoton laser light is achieved above threshold.
44 citations
TL;DR: In this paper, the authors present a theoretical analysis of fringes formation with partially coherent light, based on the propagation laws of the mutual coherence function, and they show the existence of critical coherence field srtuctures which reduce the fringe visibility even in he Fourier planes.
Abstract: We present a theoretical analysis of miore fringes formation with partially coherent light. This analysis is based on the propagation laws of the mutual coherence function. Γ. With perfectly coherent light (i.e. laser light) the fringe visibility is maximum only in the Fourier planes. We show the existence of « critical coherence » field srtuctures which reduce the fringe visibility even in he Fourier planes. This analysis shows that periodic object image formation is strongly influenced by the coherence strucure of the light field.
8 citations
2 citations