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High-Energy Ions Emitted from Ar Clusters Irradiated by Intense Femtosecond Laser Pulses |
| LI Zhong1;LEI An-Le1;NI Guo-Quan2;XU Zhi-Zhan1 |
| 1Laboratory for High Intensity Optics, 2Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 |
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| Cite this article: |
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LI Zhong, LEI An-Le, NI Guo-Quan et al 2000 Chin. Phys. Lett. 17 99-100 |
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Abstract We have experimentally studied the energy spectra of Ar ions emitted from Ar clusters irradiated by intense femtosecond laser pulses. The Ar clusters were produced in the adiabatic expansion of Ar gas into vacuum at high backing pressures. The laser peak intensity was about 2 Χ10l6W/cm2 with a pulse duration of 45fs. The maximum and the average energies of Ar ions are 0.2MeV and 15keV at a backing pressure of 2.5MPa, respectively. They are almost independent of the backing pressures in the range of 0.6 to 4.5 MPa.
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| Keywords:
36.40.-c
52.50.Jm
36.40.Vz
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Published: 01 February 2000
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| PACS: |
36.40.-c
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(Atomic and molecular clusters)
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52.50.Jm
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(Plasma production and heating by laser beams (laser-foil, laser-cluster, etc.))
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36.40.Vz
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(Optical properties of clusters)
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Abstract
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