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

Journal of Physics B Atomic and Molecular Physics

Interaction of laser light with the 21S0metastable state of helium

V. L. Jacobs, Junya Mizuno

Published Jun 1, 1972• 3 citations
Publisher

Abstract

The cross sections for singly stimulated two-photon emission and anti-Stokes Raman scattering from the 21S0 metastable state of helium care calculated by a variational procedure for incident photon wavelengths in the range from 5000 AA to 50 mu m.
DOI
10.1088/0022-3700/5/6/018

Related papers

Interference effects in the two-photon ionization of metastable helium

Ravi Sharma, K. C. Mathur

Multipole interference effects are predicted in the generalized cross sections, and in the ratio $\frac{{\stackrel{^}{\ensuremath{\sigma}}}_{C}}{{\stackrel{^}{\ensuremath{\sigma}}}_{L}}$ of the cross sections for circularly and linearly polarized laser light for the case of the two-photon ionization of the $n=2$ singlet metastable helium atoms in the wavelength range 5036-5050 \AA{}.

Physical Review A•Nov 1, 1979•5 citations

The Spectral Distribution of the Two-Photon Emission from the Metastable State of Singly Ionized Helium: Optical Collisional Excitation with Very Low Energy Metastable Positive Helium Ions.

Carmine J. Artura

•Jan 1, 1969•0 citations

Laser-Induced Quenching of Metastable Deuterium Atoms. Singly Stimulated Two-Photon Emission and Anti-Stokes Raman Scattering

P. Bräunlich, R. J. Hall, P. Lambropoulos

An experimental arrangement for the measurement of singly stimulated two-photon emission and anti-Stokes Raman scattering from metastable deuterium atoms is described. The atoms, produced by charge exchange between cesium vapor and 5-keV deuterons, are subjected to intense light pulses from a Nd-glass laser. The generated photons are detected at the exit slit of a vacuum-uv spectrometer. The results are compared with theoretical calculations by Zernik.

Physical Review A•Mar 1, 1972•30 citations

Observation of anti-Stokes-stimulated Raman scattering and two-photon emission in lithium and sodium vapors

F. Z. Chen, Chao Wu, T. S. Yih +3 more

AIP conference proceedings•Jan 1, 1988•1 citation

Interaction of Optical and Infrared Radiation with Metastable Hydrogen Atoms

Wolfgang Zernik

This paper is an extension of a previous one and discusses the theory of the quenching of the metastable $2S$ state of atomic hydrogen by means of optical radiation, for example by the light from a ruby laser. The case discussed is that for which the incident intensity is sufficiently weak for the usual quantum-electrodynamical perturbation theory to be valid. A procedure developed by Schwartz and others is used to carry out the sum over intermediate states without explicit enumeration. The results are given for a range of incident wavelengths from 5000 \AA{} to 5\ensuremath{\mu}. For unpolarized light from a ruby laser (6934 \AA{}), the total cross section for quenching is found to be ${\ensuremath{\sigma}}_{Q}=1.27\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}22}$ ${\mathrm{cm}}^{2}$. The cross section for coherent scattering has also been calculated for the same range of wavelengths; for ruby laser light, the total cross section for scattering is found to be ${\ensuremath{\sigma}}_{S}=1.03\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}23}$ ${\mathrm{cm}}^{2}$.

Physical Review•Jan 6, 1964•41 citations

INTERACTION OF LASER LIGHT WITH THE 2$sup 1$S$sub 0$ METASTABLE STATE OF HELIUM.

V. L. Jacobs, Junya Mizuno

•Jan 1, 1972•0 citations
Multipole interference effects are predicted in the generalized cross sections, and in the ratio $\frac{{\stackrel{^}{\ensuremath{\sigma}}}_{C}}{{\stackrel{^}{\ensuremath{\sigma}}}_{L}}$ of the cross sections for circularly and linearly polarized laser light for the case of the two-photon ionization of the n=2n=2n=2 singlet metastable helium atoms in the wavelength range 5036-5050 \AA{}.
This paper is an extension of a previous one and discusses the theory of the quenching of the metastable 2S2S2S state of atomic hydrogen by means of optical radiation, for example by the light from a ruby laser. The case discussed is that for which the incident intensity is sufficiently weak for the usual quantum-electrodynamical perturbation theory to be valid. A procedure developed by Schwartz and others is used to carry out the sum over intermediate states without explicit enumeration. The results are given for a range of incident wavelengths from 5000 \AA{} to 5\ensuremath{\mu}. For unpolarized light from a ruby laser (6934 \AA{}), the total cross section for quenching is found to be ${\ensuremath{\sigma}}_{Q}=1.27\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}22}$ cm2{\mathrm{cm}}^{2}cm2. The cross section for coherent scattering has also been calculated for the same range of wavelengths; for ruby laser light, the total cross section for scattering is found to be ${\ensuremath{\sigma}}_{S}=1.03\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}23}$ cm2{\mathrm{cm}}^{2}cm2.
INTERACTION OF LASER LIGHT WITH THE 2sup1sup 1sup1Ssub0sub 0sub0 METASTABLE STATE OF HELIUM.