Long-range quasi-non-diffracting Gauss-Bessel beams in a few-cycle laser field

Many applications ranging from nonlinear optics to material processing would benefit from pulsed ultrashort (quasi-)non-diffracting Gauss-Bessel beams (GBBs). Here we demonstrate a straightforward yet efficient method for generating such zeroth- and first-order GBBs using a single reflective spatial...

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Veröffentlicht in:Optics express 2021-03, Vol.29 (7), p.10997-11008
Hauptverfasser: Stoyanov, Lyubomir, Zhang, Yinyu, Dreischuh, Alexander, Paulus, Gerhard G
Format: Artikel
Sprache:eng
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Zusammenfassung:Many applications ranging from nonlinear optics to material processing would benefit from pulsed ultrashort (quasi-)non-diffracting Gauss-Bessel beams (GBBs). Here we demonstrate a straightforward yet efficient method for generating such zeroth- and first-order GBBs using a single reflective spatial light modulator. Even in the sub-8-fs range there are no noticeable consequences for the measured pulse duration. The only effect is a weak "coloring" of the outer-lying satellite rings of the beams due to the spectrum spanning over more than 300 nm. The obtained beams have diffraction half-angles below 40 μrad and reach propagation distances in excess of 1.5 m.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.419486