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

Physical Review A

Reverse energy-pooling collisions: K(5D)+Na(3S)→K(4P)+Na(3P)

S. Guldberg-Kjær, G. De Filippo, Slobodan Milošević, S. Magnier, Jens Olaf Pepke Pedersen, M. Allegrini

Published Apr 1, 1997• 4 citations
Publisher

Abstract

The observation of a heteronuclear reverse energy pooling process is reported. The cross section for the collision processes K(5D)+Na(3S)\ensuremath{\rightarrow}K(4P)+Na(3P) has been measured and compared to calculations carried out using a multicrossing Landau-Zener model.
DOI
10.1103/physreva.55.r2515

Related papers

Rd(7D)+Na(3S)碰撞激發轉移過程

沈異凡, 沈曉燕

The observation of a heteronuclear reverse energy pooling process is reported. The cross sections for the collision processes Rb(7D)+Na(3S)→Rb(5P)+Na(3P) have been measured. In the experiment the rubidium atoms were excited in two steps to the 7D(subscript 3/2) state. A double-modulation technique has been used to select the fluorescence contributions at the Na(3P(subscript j)) exit channels due only to the above reactions. The ground state sodium atom density was measured by the absorption of line from a Na hollow-cathode lamp. The measured density and fluorescence intensities have been used to obtain reverse energy pooling rate coefficients. The contribution to the rate coefficients from other processes is discussed.

光谱学与光谱分析•Aug 1, 2003•0 citations

Excitation Transfer Process Rb(7D)+Na(3S) Collisions

Yifan Shen

The observation of a heteronuclear reverse energy pooling process is reported. The cross sections for the collision processes Rb(7 D )+Na(3 S )→Rb(5 P )+Na(3 P ) have been measured. In the experiment the rubidium atoms were excited in two steps to the 7 D _ 3/2 state. A double-modulation technique has been used to select the fluorescence contributions at the Na(3 P_j ) exit channels due only to the above reactions. The ground state sodium atom density was measured by the absorption of line from a Na hollow-cathode lamp. The measured density and fluorescence intensities have been used to obtain reverse energy pooling rate coefficients. The contribution to the rate coefficients from other processes is discussed.

•Jan 1, 2003•0 citations

Reverse Energy-pooling in Rb-Na Mixture

Yifan Shen

The observation of a heteronuclear reverse energy pooling process [Rb(7D)+Na(3S)→Rb(5P)+Na(3P)] is reported. The dye-laser beam populated the Rb(7D) state by a stepwise excitation process. A double-modulation technique has been used to select the fluorescence contribution at the Na(3P_J)exit channels due only to the above reactions. The ground-state sodium atom density is obtained by measuring the wing absorption coefficient. The measured density and fluorescence intensities have been used to obtain reverse energy-pooling rate coefficients. The contribution to the rate coefficients from other processes is discussed.

Shinjang dashösi ilmiy jurnili•Jan 1, 2004•0 citations

Reverse Energy-Pooling Collisions: Cs(9 D )+Na(3 S ) Cs(6 P )+Na(3 P )

Shen Yi-Fan, A Pulati, Kang Dai

We report the observation of a heteronuclear reverse energy pooling process Cs(9 D )+Na(3 S )→Cs(6 P )+Na(3 P ). The state is populated in a stepwise excitation process by a dye-laser beam. A double-modulation technique is used to select the fluorescence contribution at the Na(3 P J ) exit channels only due to the above reaction. The ground-state sodium atom density was obtained by measuring the wing absorption coefficient. The measured density and fluorescence intensities are used to obtain the reverse energy-pooling rate coefficient. The cross section related to the rate coefficient is (4.3±1.4) × 10 −14 cm 2 .

Chinese Physics Letters•Oct 1, 2004•2 citations

Heteronuclear energy pooling collisions: The Na(3P) + K(4P) reaction

Silvia Gozzini, S.A. Abdullah, M. Allegrini +2 more

Optics Communications•Jul 1, 1987•18 citations

Energy-pooling collisions for K(4P)+Rb(5P) and Na(3P)+Rb(5P) heteronuclear systems

C. Gabbanini, Silvia Gozzini, G. Squadrito +2 more

The rate constants of the energy-pooling collisions in the Na-Rb and K-Rb vapor mixtures, resonantly excited by two cw dye lasers, have been measured relative to a known energy-pooling rate constant of a homonuclear reaction. To isolate the heteronuclear contribution in the fluorescence spectrum, a double-modulation technique has been adopted. The effective lifetimes of the excited levels that explicitly appear in the solution equation have been directly measured by using pulsed lasers. A discussion about the collision cross-section dependence on the energy defect involved in the energy-pooling collisions is reported.

Physical Review A•Jun 1, 1989•33 citations
The observation of a heteronuclear reverse energy pooling process is reported. The cross sections for the collision processes Rb(7D)+Na(3S)→Rb(5P)+Na(3P) have been measured. In the experiment the rubidium atoms were excited in two steps to the 7D(subscript 3/2) state. A double-modulation technique has been used to select the fluorescence contributions at the Na(3P(subscript j)) exit channels due only to the above reactions. The ground state sodium atom density was measured by the absorption of line from a Na hollow-cathode lamp. The measured density and fluorescence intensities have been used to obtain reverse energy pooling rate coefficients. The contribution to the rate coefficients from other processes is discussed.
The observation of a heteronuclear reverse energy pooling process is reported. The cross sections for the collision processes Rb(7 D )+Na(3 S )→Rb(5 P )+Na(3 P ) have been measured. In the experiment the rubidium atoms were excited in two steps to the 7 D _ 3/2 state. A double-modulation technique has been used to select the fluorescence contributions at the Na(3 P_j ) exit channels due only to the above reactions. The ground state sodium atom density was measured by the absorption of line from a Na hollow-cathode lamp. The measured density and fluorescence intensities have been used to obtain reverse energy pooling rate coefficients. The contribution to the rate coefficients from other processes is discussed.
The observation of a heteronuclear reverse energy pooling process [Rb(7D)+Na(3S)→Rb(5P)+Na(3P)] is reported. The dye-laser beam populated the Rb(7D) state by a stepwise excitation process. A double-modulation technique has been used to select the fluorescence contribution at the Na(3P_J)exit channels due only to the above reactions. The ground-state sodium atom density is obtained by measuring the wing absorption coefficient. The measured density and fluorescence intensities have been used to obtain reverse energy-pooling rate coefficients. The contribution to the rate coefficients from other processes is discussed.
We report the observation of a heteronuclear reverse energy pooling process Cs(9 D )+Na(3 S )→Cs(6 P )+Na(3 P ). The state is populated in a stepwise excitation process by a dye-laser beam. A double-modulation technique is used to select the fluorescence contribution at the Na(3 P J ) exit channels only due to the above reaction. The ground-state sodium atom density was obtained by measuring the wing absorption coefficient. The measured density and fluorescence intensities are used to obtain the reverse energy-pooling rate coefficient. The cross section related to the rate coefficient is (4.3±1.4) × 10 −14 cm 2 .
The rate constants of the energy-pooling collisions in the Na-Rb and K-Rb vapor mixtures, resonantly excited by two cw dye lasers, have been measured relative to a known energy-pooling rate constant of a homonuclear reaction. To isolate the heteronuclear contribution in the fluorescence spectrum, a double-modulation technique has been adopted. The effective lifetimes of the excited levels that explicitly appear in the solution equation have been directly measured by using pulsed lasers. A discussion about the collision cross-section dependence on the energy defect involved in the energy-pooling collisions is reported.