| Original Articles |
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Polarization-Dependence of Coulomb Explosion of CO Irradiated with an Intense Femtosecond Laser Pulse |
| CHEN Jian-Xin;MA Ri;REN Hai-Zhen;LI Xia;YANG Hong;GONG Qi-Huang |
| State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871 |
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| Cite this article: |
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CHEN Jian-Xin, MA Ri, REN Hai-Zhen et al 2003 Chin. Phys. Lett. 20 1040-1042 |
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Abstract Laser-induced Coulomb explosion of CO is studied experimentally using differently polarized femtosecond laser pulses of 2 x 1015W/cm2 intensity at λ = 800 nm. The channels of molecular Coulomb explosion are observed to be independent of the laser polarizations. The critical distance R is deduced to be larger for the circularly polarized light in comparison with the linearly polarized light. The initial emissions of C+, C2+, O+, and O2+ ions are anisotropic for linear polarization and isotropic for circular polarization. The suppression of ionization occurs for the elliptically and circularly polarized lasers.
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| Keywords:
33.80.Rv
42.50.Hz
33.80.Wz
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Published: 01 July 2003
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| PACS: |
33.80.Rv
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(Multiphoton ionization and excitation to highly excited states (e.g., Rydberg states))
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42.50.Hz
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(Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)
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33.80.Wz
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(Other multiphoton processes)
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