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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 38, Iss. 16 — Aug. 15, 2013
  • pp: 2938–2940

Generation of sub-20-fs deep-ultraviolet pulses by using chirped-pulse four-wave mixing in CaF2 plate

Jinping He and Takayoshi Kobayashi  »View Author Affiliations


Optics Letters, Vol. 38, Issue 16, pp. 2938-2940 (2013)
http://dx.doi.org/10.1364/OL.38.002938


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Abstract

Sub-20-fs deep ultraviolet (DUV) pulses are generated by using nondegenerate, chirped-pulse four-wave mixing of the fundamental and second-harmonic pulses from a commercial Ti:sapphire amplifier in a CaF2 plate. The energy of the DUV pulses is 3.8 μJ, with a conversion efficiency from total pump energy to DUV of 3.8%. The DUV pulse is compressed using a pre-chirp, introduced via a fused silica window in the fundamental beam. The central wavelength of the DUV spectrum can be tuned from 257 to 277 nm by adjusting the cross angle between the two pump beams. The spectrum can reach a width of 16.8 nm, which can support a pulse duration of 8.7 fs.

© 2013 Optical Society of America

OCIS Codes
(140.7240) Lasers and laser optics : UV, EUV, and X-ray lasers
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing
(320.7090) Ultrafast optics : Ultrafast lasers

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: June 3, 2013
Revised Manuscript: July 11, 2013
Manuscript Accepted: July 13, 2013
Published: August 5, 2013

Citation
Jinping He and Takayoshi Kobayashi, "Generation of sub-20-fs deep-ultraviolet pulses by using chirped-pulse four-wave mixing in CaF2 plate," Opt. Lett. 38, 2938-2940 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-16-2938


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