Angular distribution of electron temperature and density in a laser-ablation plume

被引：118

作者：

Toftmann, B

Schou, J ^{[1
]}

Hansen, TN

Lunney, JG

机构：

[1] Riso Natl Lab, Dept Opt & Fluid Dynam, DK-4000 Roskilde, Denmark

[2] Univ Dublin Trinity Coll, Dept Phys, Dublin 2, Ireland

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.84.3998

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The angular distribution of electron temperature and density in a laser-ablation plume has been studied for the first time. The electron temperature ranges from 0.1 to 0.5 eV and is only weakly dependent on the angle in the low-intensity range studied here. In contrast, the typical ion energy is about 2 orders of magnitude larger, and its angular distribution is mon peaked about the target normal. The derived Values of the electron density are in agreement with the measured values of ion density.

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页码：3998 / 4001

页数：4

相关论文

共 28 条

[1] Charged species analysis as a diagnostic tool for laser produced plasma characterization [J].

Amoruso, S ;

Armenante, M ;

Berardi, V ;

Bruzzese, R ;

Pica, G ;

Velotta, R .

APPLIED SURFACE SCIENCE, 1996, 106 :507-512

[2] Emission of prompt electrons during excimer laser ablation of aluminum targets [J].

Amoruso, S ;

Armenante, M ;

Bruzzese, R ;

Spinelli, N ;

Velotta, R ;

Wang, X .

APPLIED PHYSICS LETTERS, 1999, 75 (01) :7-9

[3] An analytical model for three-dimensional laser plume expansion into vacuum in hydrodynamic regime [J].

Anisimov, SI ;

Lukyanchuk, BS ;

Luches, A .

APPLIED SURFACE SCIENCE, 1996, 96-8 :24-32

[4] GAS-DYNAMICS AND FILM PROFILES IN PULSED-LASER DEPOSITION OF MATERIALS [J].

ANISIMOV, SI ;

BAUERLE, D ;

LUKYANCHUK, BS .

PHYSICAL REVIEW B, 1993, 48 (16) :12076-12081

[5]

Chrisey D. B., 1994, PULSED LASER DEPOSIT

[6] DYNAMICS OF RECONTAMINATION OF LASER-CLEANED METALLIC SURFACES IN LASER-PRODUCED PLASMA-EXPERIMENTS [J].

DINGER, R ;

ROHR, K ;

WEBER, H .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1984, 17 (08) :1707-1712

[7] CU0, CU+, AND CU-2 FROM EXCIMER-ABLATED COPPER [J].

DREYFUS, RW .

JOURNAL OF APPLIED PHYSICS, 1991, 69 (03) :1721-1729

[8] ELECTRICAL CHARACTERIZATION OF PLASMA GENERATION IN KRF LASER CU ABLATION [J].

DYER, PE .

APPLIED PHYSICS LETTERS, 1989, 55 (16) :1630-1632

[9] Laser ablation plume thermalization dynamics in background gases: Combined imaging, optical absorption and emission spectroscopy, and ion probe measurements [J].

Geohegan, DB ;

Puretzky, AA .

APPLIED SURFACE SCIENCE, 1996, 96-8 :131-138

[10] Angular distributions of silver ions and neutrals emitted in vacuum by laser ablation [J].

Hansen, TN ;

Schou, J ;

Lunney, JG .

EUROPHYSICS LETTERS, 1997, 40 (04) :441-446