THE SPECTROSCOPY OF RUBY CRYSTALL WITH THE HELP OF FREQUENCY-CORRELATED PHOTONS

A.A. Kalachev¹, D.A. Kalashnikov¹, A.A. Kalinkin¹, V.V. Samartsev², A.V. Shkalikov¹
 

¹Kazan Physical-Technical Institute of E.K. Zavoyskiy RAS

²Kazan State University

Received April 23, 2008

 

We present a method of quantum spectroscopy using the frequency-correlated photon pairs generated by spontaneous parametric down-conversion. An absorptive sample was placed in one channel of Braune-Twiss scheme interferometer, and frequency was measured in another channel. The absorption spectrum measured by method of biphoton spectroscopy is well agreed with a same sample spectrum measured by laser spectroscopy.