N. N. Rubtsova, V. G. Gol'dort, I. V. Yevseyev, V. N. Ishchenko, S. A. Kochubei, E. B. Khvorostov, “Depolarizing collision anisotropy and collision echo in ytterbium vapor”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2008, Volume 87, Issue 2,Pages <nobr>110

This article is cited in 18 papers

ATOMS, SPECTRA, RADIATIONS

Depolarizing collision anisotropy and collision echo in ytterbium vapor

N. N. Rubtsova^a, V. G. Gol'dort^a, I. V. Yevseyev^b, V. N. Ishchenko^a, S. A. Kochubei^a, E. B. Khvorostov^a

^a Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent'eva 13, Novosibirsk, 630090, Russia
^b Moscow Engineering Physics Institute (State University), Kashirskoe sh. 31, Moscow, 115409, Russia

Abstract: A photon echo induced exclusively by collisions of ytterbium atoms with buffer gas atoms has been observed at a 0 ↔ 1-type¹ S ₀(6s ²)-³ P ₁(6s6p) ¹⁷⁴Yb transition. The polarization properties of a collision echo and the buffer gas density dependence of its intensity agree with theoretical predictions of a model of depolarizing collisions that takes into account the dependence of a relaxation matrix on the velocity of active particles. Thus, direct experimental evidence of the relaxation anisotropy due to depolarizing collisions has been obtained.

PACS: 42.50.Md

Received: 26.11.2007
Revised: 10.12.2007