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Hybrid optics for focusing ultrashort laser pulses

 
: Fuchs, U.; Zeitner, U.; Tünnermann, A.

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Optics Letters 31 (2006), No.10, pp.1516-1518
ISSN: 0146-9592
English
Journal Article
Fraunhofer IOF ()

Abstract
We present a specially designed hybrid optics comprising refraction and diffraction effects for tight spatial and temporal focusing of ultrashort laser pulses. Both aims can be put into practice by having a high numerical aperture (NA=0.45) and low internal dispersion at the same time. We are presenting what we believe is the first experimental realization of such a hybrid short plus focusing optics. The focusing properties are compared with a commonly used microscope objective (20\'01,NA=0.45) in theory and experimentally.

: http://publica.fraunhofer.de/documents/N-45807.html