Time control of two-photon interference

Journal Article · Sat May 01 00:00:00 EDT 2004 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.69.053817· OSTI ID:20643687

Sagioro, M A; Olindo, C; Monken, C H; Padua, S ^[1]

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1. Departamento de Fisica, Universidade Federal de Minas Gerais, Caixa Postal 702, 30123-970 Belo Horizonte, Minas Gerais (Brazil)

The interference of photons with the same polarization generated by spontaneous parametric down conversion in a Hong-Ou-Mandel interferometer, after one of them passed through a symmetric cavity, is demonstrated experimentally. In the regime where the cavity length is larger than the one-photon coherence length, photon coalescence and anticoalescence interference is observed. We show that by changing the cavity length, coincidence peaks can be transformed in dips and vice versa, even though the coherence length of the photon wave packet is smaller than the cavity length. The photon pair coalescence or anticoalescence at the beam splitter can be controlled by changing the length of the cavity.

• OSTI ID: 20643687
• Journal Information: Physical Review. A, Vol. 69, Issue 5; Other Information: DOI: 10.1103/PhysRevA.69.053817; (c) 2004 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 SPLITTING
COALESCENCE
COHERENCE LENGTH
CONTROL
CONVERSION
INTERFERENCE
MULTI-PHOTON PROCESSES
OPTICS
PHOTONS
POLARIZATION
QUANTUM MECHANICS
VISIBLE RADIATION
WAVE PACKETS