Spectroscopy by frequency entangled photon pairs

Abstract

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.

11 pages, 5 figures, to be published in Phys. Lett. A

References in corpus (3)

• Measurement of the photonic de Broglie wavelength of biphotons generated by spontaneous parametric down-conversion
• Generating Entangled Two-Photon States with Coincident Frequencies
• Quantum diffraction and interference of spatially correlated photon pairs generated by spontaneous parametric down-conversion

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