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JOURNALS // Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki // Archive

Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki, 2013 Volume 155, Book 1, Pages 90–98 (Mi uzku1180)

This article is cited in 1 paper

Two-quantum photon correlator under the regime of free-induction decay in $\mathrm{CdS}$ at room temperature

A. V. Leontieva, T. G. Mitrofanovaa, V. V. Samartseva, O. Kh. Khasanovb

a Zavoisky Physical Technical Institute, Kazan Scientific Center of the Russian Academy of Sciences, Kazan, Russia
b Scientific-Practical Materials Research Centre of NAS of Belarus, Minsk, Belarus

Abstract: The signals of the free-induction decay (FID) are detected in a $\mathrm{CdS}$ crystal at a wavelength of 790 nm under the condition of two-photon absorption of light quanta from different crossed femtosecond laser beams, with one photon being absorbed from a beam of wavevector $\mathbf k_1$, and the other photon from another beam of wavevector $\mathbf k_2$. FID-photons with wavelengths of 790 nm are emitted in two opposite directions and are correlated by frequencies, places and times of birth.

Keywords: entanglement, free-induction decay, correlated photons, EPR-pair, electrons, $\mathrm{CdS}$, two-photon absorption, room temperature.

UDC: 535.2

Received: 22.10.2012



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