Thomson scattering from laser induced plasma in air

被引：22

作者：

Dzierzega, K. ^{[1
]}

Mendys, A. ^{[1
]}

Pellerin, S.

Thouin, E.

Travaille, G.

Bousquet, B.

Canioni, L.

Pokrzywka, B.

机构：

[1] Jagiellonian Univ, Inst Phys, PL-30059 Krakow, Poland

来源：

14TH INTERNATIONAL SYMPOSIUM ON LASER-AIDED PLASMA DIAGNOSTICS (LAPD14) | 2010年 / 227卷

关键词：

D O I：

10.1088/1742-6596/227/1/012029

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The laser induced plasma in air produced by 6 ns, 532 nm Nd:YAG pulses with 25 mJ energy was studied using the Thomson scattering method and plasma imaging techniques. Plasma images and Thomson scattered spectra were registered at delay times ranging from 150 ns to 1 mu s after the breakdown pulses. The electron density and temperature, as determined in the core of the plasma plume, were found to decrease from 7.4 x 10(17) cm(-3) to about 1.03 x 10(17) cm(-3) and from 100 900 K to 22 700 K. The highly elevated electron temperatures are the result of plasma heating by the second, probe pulse in the Thomson scattering experiments.

引用

页数：4

共 9 条

[1]

[Anonymous], 2006, Handbook of Laser-Induced Breakdown Spectroscopy

[2] Double pulse laser ablation and plasma: Laser induced breakdown spectroscopy signal enhancement [J].

Babushok, V. I. ;

DeLucia, F. C., Jr. ;

Gottfried, J. L. ;

Munson, C. A. ;

Miziolek, A. W. .

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 2006, 61 (09) :999-1014

[3] Experimental investigations of plasma perturbation in Thomson scattering applied to thermal plasma diagnostics [J].

Dzierzega, Krzysztof ;

Zawadzki, Witold ;

Pokrzywka, Bartlomiej ;

Pellerin, Stephane .

PHYSICAL REVIEW E, 2006, 74 (02)

[4] LASER LIGHT SCATTERING IN LABORATORY PLASMAS [J].

EVANS, DE ;

KATZENSTEIN, J .

REPORTS ON PROGRESS IN PHYSICS, 1969, 32 (02) :207-+

[5] Comparisons between LIBS and ICP/OES [J].

Fichet, P ;

Tabarant, M ;

Salle, B ;

Gautier, C .

ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 2006, 385 (02) :338-344

[6]

Hutchinson I. H., 2002, PRINCIPLES PLASMA DI

[7] Thomson scattering diagnostics of thermal plasmas: Laser heating of electrons and the existence of local thermodynamic equilibrium [J].

Murphy, AB .

PHYSICAL REVIEW E, 2004, 69 (01) :10

[8] Electron heating in the measurement of electron temperature by Thomson scattering: Are thermal plasmas thermal? [J].

Murphy, AB .

PHYSICAL REVIEW LETTERS, 2002, 89 (02)

[9]

Russo RE, 2006, LASER-INDUCED BREAKDOWN SPECTROSCOPY (LIBS): FUNDAMENTALS AND APPLICATIONS, pXV

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