Emission of prompt electrons during excimer laser ablation of aluminum targets

被引:46
作者
Amoruso, S
Armenante, M
Bruzzese, R
Spinelli, N
Velotta, R
Wang, X
机构
[1] Ist Nazl Fis Mat, I-80126 Naples, Italy
[2] Univ Basilicata, Dipartimento Ingn & Fis Ambiente, I-85100 Potenza, Italy
[3] Ist Nazl Fis Nucl, I-80126 Naples, Italy
[4] Univ Naples Federico II, Dipartimento Sci Fisiche, I-80126 Naples, Italy
关键词
D O I
10.1063/1.124259
中图分类号
O59 [应用物理学];
学科分类号
摘要
We report on prompt emission of fast electrons occurring during xenon-fluoride (351 nm) laser ablation of aluminum targets in the nanosecond regime. We have measured both the kinetic energy distribution and the energy-integrated time-of-flight distribution of these electrons. Experimental data evidence that the energetic electrons are produced during the laser pulse as a consequence of two-photon processes, and that space-charge effects influence the photoemitted electron kinetic energy, leading to prompt electrons kinetic energy distributions extending up to approximate to 15 eV. (C) 1999 American Institute of Physics. [S0003-6951(99)02927-7].
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页码:7 / 9
页数:3
相关论文
共 13 条
[1]   Absorption and saturation mechanisms in aluminium laser ablated plasmas [J].
Amoruso, S ;
Armenante, M ;
Berardi, V ;
Bruzzese, R ;
Spinelli, N .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1997, 65 (03) :265-271
[2]   CALCULATIONS OF THE SURFACE-TEMPERATURE RISE AND DESORPTION TEMPERATURE IN LASER-INDUCED THERMAL-DESORPTION [J].
BURGESS, D ;
STAIR, PC ;
WEITZ, E .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1986, 4 (03) :1362-1366
[3]   HIGH-CURRENT, SMALL DIVERGENCE ELECTRON-BEAMS PRODUCED BY LASER-INDUCED SURFACE PHOTOELECTRIC EFFECT [J].
CHARALAMBIDIS, D ;
HONTZOPOULOS, E ;
FOTAKIS, C ;
FARKAS, G ;
TOTH, C .
JOURNAL OF APPLIED PHYSICS, 1989, 65 (07) :2843-2846
[4]   EFFECTS OF INVERSE BREMSSTRAHLUNG IN LASER-INDUCED PLASMAS FROM A GRAPHITE SURFACE [J].
CRONBERG, H ;
REICHLING, M ;
BROBERG, E ;
NIELSEN, HB ;
MATTHIAS, E ;
TOLK, N .
APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY, 1991, 52 (03) :155-157
[5]   INTENSE SURFACE PHOTOEMISSION - SPACE-CHARGE EFFECTS AND SELF-ACCELERATION [J].
GILTON, TL ;
COWIN, JP ;
KUBIAK, GD ;
HAMZA, AV .
JOURNAL OF APPLIED PHYSICS, 1990, 68 (09) :4802-4810
[6]   SPACE-CHARGE EFFECT ON THE ENERGY-SPECTRUM OF PHOTOELECTRONS PRODUCED BY HIGH-INTENSITY SHORT-DURATION LASER-PULSES ON A METAL [J].
GIRARDEAUMONTAUT, C ;
GIRARDEAUMONTAUT, JP .
PHYSICAL REVIEW A, 1991, 44 (02) :1409-1411
[7]   Prompt electron emission and collisional ionization of ambient gas during pulsed laser ablation of silver [J].
Issac, RC ;
Varier, GK ;
Gopinath, P ;
Harilal, SS ;
Nampoori, VPN ;
Vallabhan, CPG .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1998, 67 (05) :557-561
[8]   Twin peak distribution of electron emission profile and impact ionization of ambient molecules during laser ablation of silver target [J].
Issac, RC ;
Gopinath, P ;
Varier, GK ;
Nampoori, VPN ;
Vallabhan, CPG .
APPLIED PHYSICS LETTERS, 1998, 73 (02) :163-165
[9]   HIGH-CURRENT AND DIRECTIONAL ELECTRON-BEAMS PRODUCED FROM GOLD PHOTOCATHODES BY ULTRASHORT EXCIMER LASER-PULSES [J].
MOUSTAIZIS, SD ;
TATARAKIS, M ;
KALPOUZOS, C ;
FOTAKIS, C .
APPLIED PHYSICS LETTERS, 1992, 60 (16) :1939-1941
[10]   DESIGN OF ELECTRON SPECTROMETERS [J].
ROY, D .
REPORTS ON PROGRESS IN PHYSICS, 1990, 53 (12) :1621-1674