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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 19 — Sep. 23, 2013
  • pp: 22791–22798

Self-seeded lasing in ionized air pumped by 800 nm femtosecond laser pulses

Yi Liu, Yohann Brelet, Guillaume Point, Aurélien Houard, and André Mysyrowicz  »View Author Affiliations

Optics Express, Vol. 21, Issue 19, pp. 22791-22798 (2013)

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Abstract: We report on the lasing in air and pure nitrogen gas pumped by a single 800 nm femtosecond laser pulse. Depending on gas pressure, incident laser power and beam convergence, different lasing lines are observed in the forward direction with rapid change of their relative intensities. The lines are attributed to transitions between vibrational and rotational levels of the first negative band of the singly charged nitrogen molecule-ion. We show that self-seeding plays an important role in the observed intensity changes.

© 2013 OSA

OCIS Codes
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(260.5950) Physical optics : Self-focusing

ToC Category:
Ultrafast Optics

Original Manuscript: August 19, 2013
Manuscript Accepted: September 6, 2013
Published: September 20, 2013

Yi Liu, Yohann Brelet, Guillaume Point, Aurélien Houard, and André Mysyrowicz, "Self-seeded lasing in ionized air pumped by 800 nm femtosecond laser pulses," Opt. Express 21, 22791-22798 (2013)

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