Two-Photon Absorption and Stimulated Raman Scattering on Excited Helium Atoms in a Plasma
- 20 November 1972
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 29 (21), 1445-1449
- https://doi.org/10.1103/physrevlett.29.1445
Abstract
By focusing simultaneously microwave radiation and the beam from a tunable dye laser into a helium plasma, we observe two-photon absorption and stimulated Raman scattering on excited helium atoms. Both effects can be used to measure high-frequency electric fields in plasmas, and we discuss the advantages of this method as compared with the standard technique where such fields are investigated in emission spectra.Keywords
This publication has 9 references indexed in Scilit:
- Combined Zeeman and High-Frequency Stark Effects, with Applications to Neutral-Helium Lines Useful in Plasma DiagnosticsPhysical Review A, 1972
- Observation of Resonance Scattering on Excited Helium Atoms in a Plasma Using a Tunable Dye LaserPhysical Review Letters, 1972
- A new technique for the optical generation of electron plasma wavesJournal of Physics B: Atomic and Molecular Physics, 1971
- Observation of Infrared-Microwave Two-Photon Transitions in NH3Applied Physics Letters, 1971
- Spectroscopic Measurement of High-Frequency Electric Fields in a Plasma by Observation of Two-Quantum Transitions and Spectral Line ShiftsPhysical Review B, 1969
- Calculated Electron and Ion Stark Broadening of the Allowed and Forbidden 2^{3}P-4 ^{3}P, ^{3}D, ^{3}F Transitions in Neutral HeliumThe Astrophysical Journal, 1968
- Laboratory Observations of Plasma Satellites on theandLines of HeliumPhysical Review Letters, 1968
- Stark coupling of radiation and plasma oscillationsJournal of Quantitative Spectroscopy and Radiative Transfer, 1964
- Light as a Plasma ProbePhysical Review B, 1961