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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Editor: Zhizhan Xu
  • Vol. 1, Iss. 1 — Jan. 20, 2003
  • pp: 60–62

Chirping-dependent ionization and dissociation of methane in an intense femtosecond laser field

Haizhen Ren, Chengyin Wu, Ri Ma, Hong Yang, Hongbing Jiang, and Qihuang Gong  »View Author Affiliations


Chinese Optics Letters, Vol. 1, Issue 1, pp. 60-62 (2003)


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Abstract

We studied the ionization and dissociation of polyatomic molecule methane in an intense femtosecond laser field with wavelength of 810 nm and intensities ranging from 1.4×10^(14) to 2.6×10^(15) W/cm2 by mass spectroscopy. Abundant fragment ions were observed in addition to the strong parent ion. The effect of frequency chirp was investigated and it was found that the negatively chirped pulses dramatically enhanced the dissociation probability, which might be used to control the dissociation pathways.

© 2005 Chinese Optics Letters

OCIS Codes
(260.5210) Physical optics : Photoionization
(270.6620) Quantum optics : Strong-field processes
(320.1590) Ultrafast optics : Chirping

Citation
Haizhen Ren, Chengyin Wu, Ri Ma, Hong Yang, Hongbing Jiang, and Qihuang Gong, "Chirping-dependent ionization and dissociation of methane in an intense femtosecond laser field," Chin. Opt. Lett. 1, 60-62 (2003)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-1-1-60


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