Spatial correlation of photon pairs produced in spontaneous parametric down-conversion

Journal Article · Mon Oct 11 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3507428· OSTI ID:21428657

Procopio, L M ^[1]; Rosas-Ortiz, O ^[1]; Velazquez, V ^[2]

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1. Departamento de Fisica, Cinvestav, A.P. 14-740, Mexico D.F. 07000 (Mexico)
2. Facultad de Ciencias, Universidad Nacional Autonoma de Mexico, A.P. 20-364, Mexico D.F. 04510 (Mexico)

We report the observation of spatial biphoton correlation in spontaneous parametric down conversion. The optical bench includes a type-I BBO crystal of effective length 2 mm, pumped by a 100 mW violet laser diode centered at 405.38 nm. Photon pairs are created with degenerate wavelength {approx_equal}810.76 nm. Once the horizontal counting rates have been measured, a simple geometrical recipe is shown to be useful in calculating bounds for the width of vertical counting rates. The spatial correlation between idler and signal photons is illustrated with a coincidence distribution of the coordinate pair (x{sub s},x{sub i}), with x{sub i,s} the idler (signal) detector position in horizontal scan.

• OSTI ID: 21428657
• Journal Information: AIP Conference Proceedings, Vol. 1287, Issue 1; Conference: Advanced summer school in physics 2009: Frontiers in contemporary physics, Mexico City (Mexico), 27-31 Jul 2009; Other Information: DOI: 10.1063/1.3507428; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CONVERSION
COORDINATES
CORRELATIONS
COUNTING RATES
CRYSTALS
HARMONIC GENERATION
LASER RADIATION
OPTICS
PAIR PRODUCTION
PHOTONS
POLARIZATION
QUANTUM MECHANICS
BOSONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FREQUENCY MIXING
INTERACTIONS
MASSLESS PARTICLES
MECHANICS
PARTICLE PRODUCTION
RADIATIONS