Generation of femtosecond Bessel beams with microaxicon arrays

Authors
Grunwald, R Griebner, U Tschirschwitz, F Nibbering, ETJ Elsaesser, T Kebbel, V Hartmann, HJ Juptner, W
Citation
R. Grunwald et al., Generation of femtosecond Bessel beams with microaxicon arrays, OPTICS LETT, 25(13), 2000, pp. 981-983
Citations number
18
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
OPTICS LETTERS
ISSN journal
01469592 → ACNP
Volume
25
Issue
13
Year of publication
2000
Pages
981 - 983
Database
ISI
SICI code
0146-9592(20000701)25:13<981:GOFBBW>2.0.ZU;2-Q
Abstract
Multiple quasi-Bessel beams are generated by transmission of sub-30-fs puls es from a Ti:sapphire laser through refractive thin-film microaxicon arrays . Time-integrated intensity distributions at several axial positions and fo r pulse durations of 26 and 12.5 fs reveal significant changes of contrast, envelope function, and spatial frequency spectrum in comparison with conti nuous wave data. Evidence is presented that strong space-time coupling resu lts in a time-dependent interference zone. (C) 2000 Optical Society of Amer ica.