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Observation of optical vortex streets in walking-second harmonic generation

Author
Molina, G.; Dmitri, V.; Recolons, J.; Torner, L.
Type of activity
Journal article
Journal
Optics letters
Date of publication
2002-04-15
Volume
27
Number
8
First page
625
Last page
627
DOI
https://doi.org/10.1364/OL.27.000625 Open in new window
Repository
http://hdl.handle.net/2117/107779 Open in new window
URL
http://www.opticsinfobase.org/view_article.cfm?gotourl=http%3A%2F%2Fwww.opticsinfobase.org%2FDirectPDFAccess%2F264D62DB-A109-7E09-4DE9C04A0A434675_68551.pdf%3Fda%3D1%26id%3D68551%26seq%3D0%26mobile%3Dno&org=Universitat%20Politecnica%20de%20Catalunya%20Biblioteca%20R%20Ferrate Open in new window
Abstract
We report what is believed to be the first experimental observation of spontaneous nucleation of arrays of optical vortices in the process of second-harmonic generation in a crystal with moderate Poynting vector walk-off, pumped with focused beams containing screw phase dislocations. Our experiments were conducted in lithium triborate under conditions of small-efficiency second-harmonic generation pumped by nanosecond pulses at 1064 nm.
Citation
Molina, G., Dmitri, V., Recolons, J., Torner, L. Observation of optical vortex streets in walking-second harmonic generation. "Optics letters", 15 Abril 2002, vol. 27, núm. 8, p. 625-627.
Group of research
FOTONICA - Photonics Research Group
RSLAB - Remote Sensing Lab

Participants