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Title: Observation of modulations in Lyman-{alpha} line profiles of multicharged ions in clusters irradiated by femtosecond laser pulses: Effect of a dynamic electric field

Abstract

Profiles of the Ly{sub {alpha}} line of O VIII ions in N{sub 2}O clusters irradiated by fs laser pulses (laser flux up to 4x10{sup 17} W/cm{sup 2}) were recorded. The features (peaks and dips) in the Ly{sub {alpha}} O VIII line profiles were observed. The experimental spectra were simulated theoretically assuming that strong oscillating electric fields are generated in the cluster plasma. We showed that allowing for oscillating electric fields of the amplitude E{sub 0}{approx}(0.5-1.0)x10{sup 9} V/cm and frequency {omega}{approx}(0.7-2.4)x10{sup 15} s{sup -1} leads to spectral features in the theoretical profiles of the Ly{sub {alpha}} O VIII line that are similar to the features observed experimentally. Possible mechanisms responsible for the generation of strong oscillating electric fields in the cluster plasma are discussed.

Authors:
 [1];  [2]; ; ; ;  [3]; ;  [4]
  1. A.M. Prokhorov Institute of General Physics, Russian Academy of Sciences, Vavilov Str. 38, Moscow 119991 (Russian Federation)
  2. (Russian Federation)
  3. Multicharged Ions Spectra Data Center of VNIIFTRI, Mendeleevo, Moscow Region, 141570 (Russian Federation)
  4. Institute for Physical Science and Technology, University of Maryland, College Park, Maryland 20742 (United States)
Publication Date:
OSTI Identifier:
20786727
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 73; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevA.73.013203; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; AMPLITUDES; ELECTRIC FIELDS; EMISSION SPECTRA; IRRADIATION; LASER-PRODUCED PLASMA; MODULATION; MOLECULAR CLUSTERS; MULTICHARGED IONS; NITROUS OXIDE; OXYGEN IONS; PHOTON-MOLECULE COLLISIONS; PLASMA PRODUCTION; PULSES; STARK EFFECT; X-RAY SPECTRA

Citation Formats

Gavrilenko, V. P., Center for Surface and Vacuum Research, Novatorov Street 40-1, Moscow 119421, Faenov, A. Ya., Magunov, A. I., Pikuz, T. A., Skobelev, I. Yu., Kim, K. Y., and Milchberg, H. M.. Observation of modulations in Lyman-{alpha} line profiles of multicharged ions in clusters irradiated by femtosecond laser pulses: Effect of a dynamic electric field. United States: N. p., 2006. Web. doi:10.1103/PHYSREVA.73.0.
Gavrilenko, V. P., Center for Surface and Vacuum Research, Novatorov Street 40-1, Moscow 119421, Faenov, A. Ya., Magunov, A. I., Pikuz, T. A., Skobelev, I. Yu., Kim, K. Y., & Milchberg, H. M.. Observation of modulations in Lyman-{alpha} line profiles of multicharged ions in clusters irradiated by femtosecond laser pulses: Effect of a dynamic electric field. United States. doi:10.1103/PHYSREVA.73.0.
Gavrilenko, V. P., Center for Surface and Vacuum Research, Novatorov Street 40-1, Moscow 119421, Faenov, A. Ya., Magunov, A. I., Pikuz, T. A., Skobelev, I. Yu., Kim, K. Y., and Milchberg, H. M.. Sun . "Observation of modulations in Lyman-{alpha} line profiles of multicharged ions in clusters irradiated by femtosecond laser pulses: Effect of a dynamic electric field". United States. doi:10.1103/PHYSREVA.73.0.
@article{osti_20786727,
title = {Observation of modulations in Lyman-{alpha} line profiles of multicharged ions in clusters irradiated by femtosecond laser pulses: Effect of a dynamic electric field},
author = {Gavrilenko, V. P. and Center for Surface and Vacuum Research, Novatorov Street 40-1, Moscow 119421 and Faenov, A. Ya. and Magunov, A. I. and Pikuz, T. A. and Skobelev, I. Yu. and Kim, K. Y. and Milchberg, H. M.},
abstractNote = {Profiles of the Ly{sub {alpha}} line of O VIII ions in N{sub 2}O clusters irradiated by fs laser pulses (laser flux up to 4x10{sup 17} W/cm{sup 2}) were recorded. The features (peaks and dips) in the Ly{sub {alpha}} O VIII line profiles were observed. The experimental spectra were simulated theoretically assuming that strong oscillating electric fields are generated in the cluster plasma. We showed that allowing for oscillating electric fields of the amplitude E{sub 0}{approx}(0.5-1.0)x10{sup 9} V/cm and frequency {omega}{approx}(0.7-2.4)x10{sup 15} s{sup -1} leads to spectral features in the theoretical profiles of the Ly{sub {alpha}} O VIII line that are similar to the features observed experimentally. Possible mechanisms responsible for the generation of strong oscillating electric fields in the cluster plasma are discussed.},
doi = {10.1103/PHYSREVA.73.0},
journal = {Physical Review. A},
number = 1,
volume = 73,
place = {United States},
year = {Sun Jan 15 00:00:00 EST 2006},
month = {Sun Jan 15 00:00:00 EST 2006}
}