SUBPICOSECOND THOMSON SCATTERING MEASUREMENTS OF OPTICALLY IONIZED HELIUM PLASMAS

Authors
GLOVER TE DONNELLY TD LIPMAN EA SULLIVAN A FALCONE RW
Citation
Te. Glover et al., SUBPICOSECOND THOMSON SCATTERING MEASUREMENTS OF OPTICALLY IONIZED HELIUM PLASMAS, Physical review letters, 73(1), 1994, pp. 78-81
Citations number
20
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
73
Issue
1
Year of publication
1994
Pages
78 - 81
Database
ISI
SICI code
0031-9007(1994)73:1<78:STSMOO>2.0.ZU;2-Y
Abstract
We present the first subpicosecond time-resolved temperature measureme nts of plasmas produced by high-intensity optical ionization. Thomson scattering is used to measure electron and ion temperatures of helium plasmas created by 125 fs, 800 nm laser pulses focused to an intensity of 2 x 10(17) W/cm2. We find that the electron temperature is accurat ely predicted by a tunneling ionization model. The measured ion temper ature is consistent with direct heating by the laser pulse.