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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 11 — May. 29, 2006
  • pp: 4915–4922

Long lifetime plasma channel in air generated by multiple femtosecond laser pulses and an external electrical field

Jiabin Zhu, Zhonggang Ji, Yunpei Deng, Jiansheng Liu, Ruxin Li, and Zhizhan Xu  »View Author Affiliations

Optics Express, Vol. 14, Issue 11, pp. 4915-4922 (2006)

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The lifetime of a plasma channel produced by self-guiding intense femtosecond laser pulses in air is largely prolonged by adding a high voltage electrical field in the plasma and by introducing a series of femtosecond laser pulses. An optimal lifetime value is realized through adjusting the delay among these laser pulses. The lifetime of a plasma channel is greatly enhanced to 350 ns by using four sequential intense 100fs(FWHM) laser pulses with an external electrical field of about 350kV/m, which proves the feasibility of prolonging the lifetime of plasma by adding an external electrical field and employing multiple laser pulses.

© 2006 Optical Society of America

OCIS Codes
(320.7120) Ultrafast optics : Ultrafast phenomena
(350.5400) Other areas of optics : Plasmas

ToC Category:
Ultrafast Optics

Original Manuscript: February 17, 2006
Revised Manuscript: May 9, 2006
Manuscript Accepted: May 10, 2006
Published: May 29, 2006

Jiabin Zhu, Zhonggang Ji, Yunpei Deng, Jiansheng Liu, Ruxin Li, and Zhizhan Xu, "Long lifetime plasma channel in air generated by multiple femtosecond laser pulses and an external electrical field," Opt. Express 14, 4915-4922 (2006)

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