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

Journal Article · Thu Dec 15 00:00:00 EST 2005 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.72.0· OSTI ID:20786394

Molina-Terriza, Gabriel; Minardi, Stefano; Osorio, Clara I ^[1]; Deyanova, Yana; Hendrych, Martin; Torres, Juan P ^[1]

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1. ICFO-Institut de Ciencies Fotoniques, Mediterranean Technology Park, 08860 Castelldefels (Barcelona) (Spain)

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.

• OSTI ID: 20786394
• Journal Information: Physical Review. A, Vol. 72, Issue 6; Other Information: DOI: 10.1103/PhysRevA.72.065802; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
BEAM PROFILES
CONTROL
CONVERSION
ENERGY SPECTRA
OPTICS
PHOTONS
QUANTUM MECHANICS
SHAPE