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Title: Tune-out wavelengths for helium atom in plasma environments

Abstract

We investigate the effect of plasma screening on the tune-out wavelengths for helium atom using correlated exponential wave function within the framework of Debye shielding approach. The pseudostate summation technique has been used to calculate the dynamic dipole polarizability for the states (2 {sup 1}S, 3 {sup 1}S, 2 {sup 3}S, 3 {sup 3}S) of helium embedded in plasma environments. In a free-atomic system, our calculated results are in agreement with available theoretical and experimental predictions. The tune-out wavelengths show interesting behavior as functions of screening parameter.

Authors:
; ;  [1];  [2]
  1. Center for Theoretical Atomic and Molecular Physics, Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin 150080 (China)
  2. College of Physical Science and Technology, Heilongjiang University, Harbin 150080 (China)
Publication Date:
OSTI Identifier:
22599887
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 23; Journal Issue: 8; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ATOMS; DEBYE LENGTH; DIPOLES; FORECASTING; HELIUM; PLASMA; POLARIZABILITY; SCREENING; SHIELDING; WAVE FUNCTIONS; WAVELENGTHS

Citation Formats

Kar, Sabyasachi, E-mail: skar@hit.edu.cn, E-mail: karsabyasachi@yahoo.com, Wang, Yu-Shu, Wang, Yang, and Jiang, Zishi. Tune-out wavelengths for helium atom in plasma environments. United States: N. p., 2016. Web. doi:10.1063/1.4961434.
Kar, Sabyasachi, E-mail: skar@hit.edu.cn, E-mail: karsabyasachi@yahoo.com, Wang, Yu-Shu, Wang, Yang, & Jiang, Zishi. Tune-out wavelengths for helium atom in plasma environments. United States. doi:10.1063/1.4961434.
Kar, Sabyasachi, E-mail: skar@hit.edu.cn, E-mail: karsabyasachi@yahoo.com, Wang, Yu-Shu, Wang, Yang, and Jiang, Zishi. 2016. "Tune-out wavelengths for helium atom in plasma environments". United States. doi:10.1063/1.4961434.
@article{osti_22599887,
title = {Tune-out wavelengths for helium atom in plasma environments},
author = {Kar, Sabyasachi, E-mail: skar@hit.edu.cn, E-mail: karsabyasachi@yahoo.com and Wang, Yu-Shu and Wang, Yang and Jiang, Zishi},
abstractNote = {We investigate the effect of plasma screening on the tune-out wavelengths for helium atom using correlated exponential wave function within the framework of Debye shielding approach. The pseudostate summation technique has been used to calculate the dynamic dipole polarizability for the states (2 {sup 1}S, 3 {sup 1}S, 2 {sup 3}S, 3 {sup 3}S) of helium embedded in plasma environments. In a free-atomic system, our calculated results are in agreement with available theoretical and experimental predictions. The tune-out wavelengths show interesting behavior as functions of screening parameter.},
doi = {10.1063/1.4961434},
journal = {Physics of Plasmas},
number = 8,
volume = 23,
place = {United States},
year = 2016,
month = 8
}
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