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, Arvinder Singh Sandhu

Research output: Contribution to journalArticle

3 Citations (Scopus)

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.

Original languageEnglish (US)
Pages (from-to)23894-23902
Number of pages9
JournalOptics Express
Volume17
Issue number26
DOIs
StatePublished - Dec 21 2009

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pulse compression
cycles
optimization
filaments
pulses
cleaners
output
apertures
energy
profiles
lasers

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Optimization of few-cycle pulse generation : Spatial size, mode quality and focal volume effects in filamentation based pulse compression. / Roberts, Adam; Shivaram, Niranjan; Xu, Lei; Sandhu, Arvinder Singh.

In: Optics Express, Vol. 17, No. 26, 21.12.2009, p. 23894-23902.

Research output: Contribution to journalArticle

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