Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Laser Physics

174 Yb 3 P 1 level relaxation found via weak magnetic field dependence of collision-induced stimulated photon echo

Н. Н. Рубцова, Гольдорт Вениамин Гершевич, Хворостов Евгений Борисович, Sergei A. Kochubei, Решетов Владимир Александрович

Published May 3, 2018• 6 citations
Publisher

Abstract

Abstract Collision-induced stimulated photon echo generated at transition was analyzed theoretically and investigated experimentally in the gaseous mixture of ytterbium vapour diluted with a large amount of buffer gas xenon in the presence of a weak longitudinal magnetic field. The inter-combination transition of 174 Yb (6s 2 ) 1 S (6s6p) 3 P 1 was used; all experimental parameters were carefully controlled for their correspondence to the broad spectral line conditions. The curve representing the collision-induced stimulated photon echo variations versus a weak magnetic field strength showed very good agreement with the corresponding theoretical curve; this agreement permitted getting the decay rates for 174 Yb level 3 P 1 orientation and alignment in collisions with Xe.

DOI
10.1088/1555-6611/aabc98

Related papers

Collision-induced stimulated photon echo generated at transition 0–1 on broad spectral line conditions

Н. Н. Рубцова, Гольдорт Вениамин Гершевич, В. Н. Ищенко +5 more

Abstract For the first time, the collision induced stimulated photon echo generated at transition 1 S 0 → 3 P 1 of 174 Yb (type 0–1) in the mixture of gases Yb + Xe was investigated in the presence of weak longitudinal magnetic field, with experimental parameters corresponding to broad spectral line conditions. Comparison of the experimental echo amplitude versus magnetic field strength dependence with the theoretical curve shows a very good agreement, giving rise to an improved estimate for the difference between alignment and orientation decay rates.

Laser Physics Letters•Feb 22, 2018•3 citations

Collision-induced stimulated photon echo at the transition 0–1 in ytterbium: application to depolarizing collisions

Н. Н. Рубцова, Гольдорт Вениамин Гершевич, Хворостов Евгений Борисович +2 more

Abstract A new idea based on the collision-induced stimulated photon echo in the presence of weak longitudinal magnetic field is applied to the depolarizing collisions research in a gaseous mixture of ytterbium vapour with xenon. Comparison of experimental data with theoretical prediction for the collision-induced stimulated photon echo in the weak magnetic field shows that the alignment decay rate of state 3 P 1 in 174 Yb is higher than the orientation decay rate.

Laser Physics Letters•Dec 13, 2016•9 citations

Full set of relaxation constants for 174 Yb level (6s6p) 3 P 1 in collisions with rare gases

Н. Н. Рубцова, Хворостов Евгений Борисович, Sergei A. Kochubei +1 more

Abstract For the first time, a complete set of decay parameters, due to collisions of 174 Yb atoms with noble gas atoms and with ytterbium atoms, was experimentally found for the 174 Yb (6s6p) 3 P 1 level. The method of stimulated photon echo with special angles between the polarization vectors of light pulses forming an echo at the 174 Yb (6s 2 ) 1 S 0 —(6s6p) 3 P 1 transition (type 0 ↔ 1 ) is used. For each buffer gas of He, Ne, Ar, Kr, Xe, and Yb, the decay rate constants of population, orientation and alignment for the collision destruction of the 3 P 1 level of 174 Yb atoms are determined. All the decay rates demonstrated their linear increase with a buffer gas pressure, and the corresponding relaxation constants are determined. Each of the indicated relaxation constants, as well as the difference between the alignment and orientation relaxation constants, increases with the increasing buffer gas mass.

Laser Physics Letters•Apr 1, 2021•1 citation

Collision-induced photon echo in ytterbium vapour at the transition 0–1: magnetic field effect

Хворостов Евгений Борисович, Гольдорт Вениамин Гершевич, В. Н. Ищенко +3 more

Collision-induced photon echo generated in ytterbium vapour at the transition (6s 2 ) 1 S 0 ↔(6s6p) 3 P 1 (transition of the type 0 ↔ 1) was investigated in the presence of the longitudinal magnetic field strength between zero and 5.6 G. For the weak magnetic fields, not over 0.27 G, the collision-induced echo signal decreases with magnetic field increase. Further increase of the magnetic field strength reveals oscillatory behavior of the echo signal. Experimental results are in qualitative agreement with theoretical predictions.

Laser Physics Letters•Nov 12, 2014•6 citations

Collision-induced stimulated photon echo on the broad spectral line

Решетов Владимир Александрович

Abstract The collision-induced stimulated photon echo formed on the broad spectral line on the transition with the angular momentum change J a = 0 → J b = 1 is studied theoretically. The dependencies of the echo intensity on the areas of exciting pulses and on the strength of the external magnetic field under the conditions of experiments in ytterbium ( 174 Yb) vapor are obtained. The ways to measure orientation and alignment relaxation rates of the excited atomic level are discussed.

Laser Physics Letters•Nov 30, 2016•4 citations

Collision induced two-pulsed photon echo at the transition 0–1 in a weak longitudinal magnetic field

Н. Н. Рубцова, Гольдорт Вениамин Гершевич, В. Н. Ищенко +3 more

It was shown experimentally in ytterbium vapour at the transition (6s 2 ) 1 S 0 (6s6p) 3 P 1 (type ), that the weak longitudinal magnetic field destroys the collision induced two-pulsed photon echo generated in a gas mixture with heavy atomic buffer; in agreement with theoretical prediction.

Laser Physics•Oct 29, 2015•5 citations
Abstract Collision-induced stimulated photon echo generated at transition was analyzed theoretically and investigated experimentally in the gaseous mixture of ytterbium vapour diluted with a large amount of buffer gas xenon in the presence of a weak longitudinal magnetic field. The inter-combination transition of 174 Yb (6s 2 ) 1 S (6s6p) 3 P 1 was used; all experimental parameters were carefully controlled for their correspondence to the broad spectral line conditions. The curve representing the collision-induced stimulated photon echo variations versus a weak magnetic field strength showed very good agreement with the corresponding theoretical curve; this agreement permitted getting the decay rates for 174 Yb level 3 P 1 orientation and alignment in collisions with Xe.
Abstract For the first time, the collision induced stimulated photon echo generated at transition 1 S 0 → 3 P 1 of 174 Yb (type 0–1) in the mixture of gases Yb + Xe was investigated in the presence of weak longitudinal magnetic field, with experimental parameters corresponding to broad spectral line conditions. Comparison of the experimental echo amplitude versus magnetic field strength dependence with the theoretical curve shows a very good agreement, giving rise to an improved estimate for the difference between alignment and orientation decay rates.
Abstract For the first time, a complete set of decay parameters, due to collisions of 174 Yb atoms with noble gas atoms and with ytterbium atoms, was experimentally found for the 174 Yb (6s6p) 3 P 1 level. The method of stimulated photon echo with special angles between the polarization vectors of light pulses forming an echo at the 174 Yb (6s 2 ) 1 S 0 —(6s6p) 3 P 1 transition (type 0 ↔ 1 ) is used. For each buffer gas of He, Ne, Ar, Kr, Xe, and Yb, the decay rate constants of population, orientation and alignment for the collision destruction of the 3 P 1 level of 174 Yb atoms are determined. All the decay rates demonstrated their linear increase with a buffer gas pressure, and the corresponding relaxation constants are determined. Each of the indicated relaxation constants, as well as the difference between the alignment and orientation relaxation constants, increases with the increasing buffer gas mass.
Collision-induced photon echo generated in ytterbium vapour at the transition (6s 2 ) 1 S 0 ↔(6s6p) 3 P 1 (transition of the type 0 ↔ 1) was investigated in the presence of the longitudinal magnetic field strength between zero and 5.6 G. For the weak magnetic fields, not over 0.27 G, the collision-induced echo signal decreases with magnetic field increase. Further increase of the magnetic field strength reveals oscillatory behavior of the echo signal. Experimental results are in qualitative agreement with theoretical predictions.