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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 18 — Sep. 9, 2013
  • pp: 20632–20640

Electron trajectory selection for high harmonic generation inside a short hollow fiber

Hironori Igarashi, Ayumu Makida, and Taro Sekikawa  »View Author Affiliations


Optics Express, Vol. 21, Issue 18, pp. 20632-20640 (2013)
http://dx.doi.org/10.1364/OE.21.020632


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Abstract

The 19th harmonic beam divergences from a Ti:sapphire laser generated using a gas jet and 10-mm-long hollow fibers with bore diameters of 300 and 200 μm were investigated. The beam quality factor M2 of the harmonic beam generated in a 300-μm hollow fiber was found to be better than the gas jet using the phase match including the atomic dipole phase induced by the short trajectory. On the other hand, a 200-μm hollow fiber was found to generate a more divergent beam with a larger M2 because of the long trajectory. The electron trajectory contributing to high harmonic generation was selected using the phase-matching process inside a short hollow fiber.

© 2013 OSA

OCIS Codes
(190.4160) Nonlinear optics : Multiharmonic generation
(020.2649) Atomic and molecular physics : Strong field laser physics

ToC Category:
Nonlinear Optics

History
Original Manuscript: April 29, 2013
Revised Manuscript: July 22, 2013
Manuscript Accepted: August 8, 2013
Published: August 27, 2013

Citation
Hironori Igarashi, Ayumu Makida, and Taro Sekikawa, "Electron trajectory selection for high harmonic generation inside a short hollow fiber," Opt. Express 21, 20632-20640 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-18-20632


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