Noncollinear second-harmonic generation in periodically poled KTiOPO4 excited by the Bessel beam

Authors
Piskarskas, A Smilgevicius, V Stabinis, A Jarutis, V Pasiskevicius, V Wang, S Tellefsen, J Laurell, F
Citation
A. Piskarskas et al., Noncollinear second-harmonic generation in periodically poled KTiOPO4 excited by the Bessel beam, OPTICS LETT, 24(15), 1999, pp. 1053-1055
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
OPTICS LETTERS
ISSN journal
01469592 → ACNP
Volume
24
Issue
15
Year of publication
1999
Pages
1053 - 1055
Database
ISI
SICI code
0146-9592(19990801)24:15<1053:NSGIPP>2.0.ZU;2-6
Abstract
Frequency doubling in periodically poled KTiOPO4 excited by the Bessel-like distribution of the fundamental radiation has been investigated. Theoretic al analysis and experiments show that the use of noncollinear geometry prov ides new possibilities for engineering nonlinear interactions in periodical ly poled crystals. We demonstrate conversion of the ring-shaped fundamental mode to the axial second-harmonic beam with 30% efficiency for 220-mu J Q- switched Nd:YAG pulses. (C) 1999 Optical Society of America.