Direct noninterference cylindrical vector beam generation applied in the femtosecond regime

This letter describes the generation of femtosecond cylindrical vector beams by passing the optical pulse through a microfabricated spiral phase plate and an azimuth-type polarization analyzer. The resulting beam resembles a doughnut and has a polarization that is axially symmetric. Portions of the...

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Bibliographic Details
Published in:Applied physics letters 2006-12, Vol.89 (25)
Main Authors: Moh, K. J., Yuan, X.-C., Bu, J., Low, D. K. Y., Burge, R. E.
Format: Article
Language:English
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Summary:This letter describes the generation of femtosecond cylindrical vector beams by passing the optical pulse through a microfabricated spiral phase plate and an azimuth-type polarization analyzer. The resulting beam resembles a doughnut and has a polarization that is axially symmetric. Portions of the wave front were sampled via the GRENOUILLE frequency resolved optical grating device; it was found that the original pulse of 200fs was stretched slightly by ∼13fs. Compared to an interferometric beam combination technique, this experiment geometry is simple, minimizes material dispersion, and has negligible spatial chirp.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2420777