Hyperpolarizabilities of one and two electron ions under strongly coupled plasma

被引：28
|
作者：
Sen, Subhrangsu [1 ,2 ]
Mandal, Puspajit [1 ]
Mukherjee, Prasanta Kumar [1 ,3 ]
Fricke, Burkhard [4 ]
机构：
[1] Visva Bharati Univ, Dept Math, Santini Ketan 731235, W Bengal, India
[2] Visva Bharati Univ, Santini Ketan 731235, W Bengal, India
[3] Ramakrishna Mission Vivekananda Univ, Dept Phys, Howrah 711202, W Bengal, India
[4] Univ Kassel, Inst Phys, D-34109 Kassel, Germany
来源：
PHYSICS OF PLASMAS | 2013年 / 20卷 / 01期
关键词：
NONLINEAR OPTICAL-PROPERTIES; HARTREE-FOCK CALCULATION; S-STATE ATOMS; HYDROGEN-ATOM; DIPOLE HYPERPOLARIZABILITIES; SPECTRAL PROPERTIES; DENSE-PLASMA; AB-INITIO; POLARIZABILITIES; HE;
D O I：
10.1063/1.4775730
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Systematic investigations on the hyperpolarizabilities of hydrogen and helium like ions up to nuclear charge Z=7 under strongly coupled plasma environment have been performed. Variation perturbation theory has been adopted to evaluate such properties for the one and two electron systems. For the two electron systems coupled Hartree-Fock theory, which takes care of partial electron correlation effects, has been utilised. Ion sphere model of the strongly coupled plasma, valid for ionic systems only, has been adopted for estimating the effect of plasma environment on the hyperpolarizability. The calculated free ion hyperpolarizability for all the systems is in good agreement with the existing data. Under confinement hyperpolarizabilities of one and two electron ions show interesting trend with respect to plasma coupling strength. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4775730]
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页数：10
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