Control of the shape of the spatial mode function of photons generated in noncollinear spontaneous parametric down-conversion

Gabriel Molina-Terriza*, Stefano Minardi, Yana Deyanova, Clara I. Osorio, Martin Hendrych, Juan P. Torres

*Corresponding author for this work

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

We show experimentally how the spatial shape of the pump beam controls the ellipticity of the spatial mode function in noncollinear spontaneous parametric down-conversion. The degree of ellipticity depends on the pump beam width, especially for highly focused beams. We introduce an effective length, the so-called noncollinear length, that determines the importance of the ellipticity of the spatial mode function. We also discuss the ellipticity induced by the spectrum of the pump beam.

Original languageEnglish
Article number065802
Pages (from-to)1-4
Number of pages4
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume72
Issue number6
DOIs
Publication statusPublished - 2005
Externally publishedYes

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