Resonance laser-induced ionisation of sodium vapour taking radiative transfer into account

被引：6

作者：

Kosarev, NI

Shaparev, NY

机构：

[1] Minist Internal Affairs Russian Federat, Siberian Jurid Inst, Krasnoyarsk 660131, Russia

[2] Russian Acad Sci, Siberian Branch, Russian Acad Sci, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia

来源：

QUANTUM ELECTRONICS | 2006年 / 36卷 / 04期

关键词：

spontaneous decay; excitation; de-excitation; absorption coefficient; source function; transparency; bleaching; radiative transfer; photoplasma;

D O I：

10.1070/QE2006v036n04ABEH013153

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The problem of ionisation of atomic sodium in the field of resonance laser radiation is numerically solved taking radiative transfer into account. Seed electrons are produced due to the mechanism of associative ionisation, then they gain energy in superelastic processes (collisions of the second kind) and initiate the avalanche ionisation of the medium by electron impact. We studied the effect of secondary radiation on the laser pulse propagation upon competition between the ionising and quenching electron collisions with excited atoms, on the kinetics of ionisation-induced vapour bleaching, and the plasma channel expansion in the form of a halo.

引用

页码：369 / 375

页数：7

共 23 条

[1]

[Anonymous], ZH TEKH FIZ

[2] FAST EXCITATION AND IONIZATION IN A LASER-PUMPED BARIUM VAPOR - EXPERIMENTS AND CALCULATIONS [J].