PLASMA PRODUCTION BY MULTIPHOTON IONIZATION - DENSITY INHOMOGENEITIES DUE TO PONDEROMOTIVE EFFECTS

被引：13

作者：

MARQUES, JR

AMIRANOFF, F

DYSON, A

MATTHIEUSSENT, G

BENKHEIRI, P

GREGORY, C

JACQUET, F

MINE, P

MONTES, B

POILLEUX, P

STENZ, C

MORA, P

GOUEDARD, C

机构：

[1] UNIV PARIS 11,CNRS,PHYS GAZ & PLASMAS LAB,F-91405 ORSAY,FRANCE

[2] ECOLE POLYTECH,CNRS,PHYS NUCL HAUTES ENERGIES LAB,F-91128 PALAISEAU,FRANCE

[3] UNIV ORLEANS,RECH ENERGET MILIEUX IONISES GRP,F-45000 ORLEANS,FRANCE

[4] ECOLE POLYTECH,CTR PHYS THEOR,F-91128 PALAISEAU,FRANCE

[5] CTR ETUD LIMEIL VALENTON,CEA,F-94195 VILLENEUVE ST GEO,FRANCE

来源：

PHYSICS OF FLUIDS B-PLASMA PHYSICS | 1993年 / 5卷 / 02期

关键词：

D O I：

10.1063/1.860491

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：

The generation of long and homogeneous plasmas by multiphoton ionization of low-pressure gases-H-2, D2, and N2 at pressures of a few Torr-with a high-power laser at lambda = 0.53 mum and intensities of the order of 10(15) W/cm2 has been studied. The temperature and density of the plasma are measured by Thomson thermal scattering. After the initial full ionization the hydrodynamic density evolution with time is observed. The comparison with a simple model shows that this evolution is mainly due to the ponderomotive force of the laser beam itself. Typical density variations range from 1% to 5% per 100 psec.

引用

页码：597 / 604

页数：8