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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 26 — Dec. 21, 2009
  • pp: 23894–23902

Optimization of few-cycle pulse generation: Spatial size, mode quality and focal volume effects in filamentation based pulse compression

Adam Roberts, Niranjan Shivaram, Lei Xu, and Arvinder Sandhu  »View Author Affiliations


Optics Express, Vol. 17, Issue 26, pp. 23894-23902 (2009)
http://dx.doi.org/10.1364/OE.17.023894


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Abstract

We demonstrate the key role played by the spatial characteristics and focusing conditions of a femtosecond multi-cycle laser pulse in optimization of filament output for the purpose of obtaining compressed light pulses in the few-cycle regime. We find that for a given beam profile and focal parameters, driving the filament with energy above a certain limiting value can negatively impact pulse compression. However, for a given energy, a smaller and cleaner input beam mode obtained by using a hard aperture can substantially improve the pulse compression ability. In addition, we show that a larger focal volume can assist in creation of a shorter output pulse.

© 2009 OSA

OCIS Codes
(320.0320) Ultrafast optics : Ultrafast optics
(320.5520) Ultrafast optics : Pulse compression

ToC Category:
Ultrafast Optics

History
Original Manuscript: October 21, 2009
Revised Manuscript: December 7, 2009
Manuscript Accepted: December 8, 2009
Published: December 15, 2009

Citation
Adam Roberts, Niranjan Shivaram, Lei Xu, and Arvinder Sandhu, "Optimization of few-cycle pulse generation: Spatial size, mode quality and focal volume effects in filamentation based pulse compression," Opt. Express 17, 23894-23902 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-26-23894


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