A. A. Kalachev, D. A. Kalashnikov, A. A. Kalinkin, T. G. Mitrofanova, V. V. Samartsev, A. V. Shkalikov, “Biphoton Spectroscopy of Ruby”, Kazan. Gos. Univ. Uchen. Zap. Ser. Fiz.-Mat. Nauki, 2008, Volume 150, Book 2,Pages <nobr>125

The XI International Youth Scientific School "The Coherent Optics and Optical Spectroscopy"

Biphoton Spectroscopy of Ruby

A. A. Kalachev, D. A. Kalashnikov, A. A. Kalinkin, T. G. Mitrofanova, V. V. Samartsev, A. V. Shkalikov

Zavoisky Physical Technical Institute, Kazan Scientific Center of the Russian Academy of Sciences

Abstract: The absorption spectrum of $\text{Cr}^{3+}$ ions in $\text{Al}_2\text{O}_3$ in the range from 691 to 697 nm was measured using biphoton light generated by nondegenerate spontaneous parametric down-conversion of He-Cd laser radiation (325 nm) in $\text{LiIO}_3$.

Keywords: biphoton, spectroscopy, spontaneous parametric down-conversion, absorption spectrum.

UDC: 535.14+535.341.08

Received: 07.04.2008