Intuitive analysis of space-time focusing with double-ABCD calculation

We analyze the structure of space-time focusing of spatially-chirped pulses using a technique where each frequency component of the beam follows its own Gaussian beamlet that in turn travels as a ray through the system. The approach leads to analytic expressions for the axially-varying pulse duratio...

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Bibliographic Details
Published inOptics express Vol. 20; no. 13; pp. 14244 - 14259
Main Authors Durfee, Charles G, Greco, Michael, Block, Erica, Vitek, Dawn, Squier, Jeff A
Format Journal Article
LanguageEnglish
Published United States Optical Society of America 18.06.2012
Subjects
Computer Simulation
Light
Models, Theoretical
Refractometry - methods
Scattering, Radiation
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Summary:We analyze the structure of space-time focusing of spatially-chirped pulses using a technique where each frequency component of the beam follows its own Gaussian beamlet that in turn travels as a ray through the system. The approach leads to analytic expressions for the axially-varying pulse duration, pulse-front tilt, and the longitudinal intensity profile. We find that an important contribution to the intensity localization obtained with spatial-chirp focusing arises from the evolution of the geometric phase of the beamlets.
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SourceType-Scholarly Journals-1
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.20.014244