Spectroscopy by frequency-entangled photon pairs

Journal Article · Thu Jan 01 04:00:00 EST 2004 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.69.013806· OSTI ID:20640640

Yabushita, Atsushi; Kobayashi, Takayoshi ^[1]

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1. Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Corporation (JST) and Department of Physics, Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033 (Japan)

Quantum spectroscopy was performed using the frequency-entangled broadband photon pairs generated by spontaneous parametric down-conversion. An absorptive sample was placed in front of the idler photon detector, and the frequency of signal photons was resolved by a diffraction grating. The absorption spectrum of the sample was measured by counting the coincidences, and the result is in agreement with the one measured by a conventional spectrophotometer with a classical light source.

• OSTI ID: 20640640
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 69; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION SPECTRA
CONVERSION
CORRELATIONS
DIFFRACTION GRATINGS
ENERGY LEVELS
GLASS
LIGHT SOURCES
PHOTONS
PULSES
QUANTUM MECHANICS
SIGNALS
SPECTROPHOTOMETERS
SPECTROSCOPY
ULTRAVIOLET SPECTRA
VISIBLE SPECTRA