Spatial transformation of Laguerre-Gaussian laser modes

Authors
Arlt, J Kuhn, R Dholakia, K
Citation
J. Arlt et al., Spatial transformation of Laguerre-Gaussian laser modes, J MOD OPT, 48(5), 2001, pp. 783-787
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
JOURNAL OF MODERN OPTICS
ISSN journal
09500340 → ACNP
Volume
48
Issue
5
Year of publication
2001
Pages
783 - 787
Database
ISI
SICI code
0950-0340(200104)48:5<783:STOLLM>2.0.ZU;2-N
Abstract
A method is described to spatially transform the annular profile of an arbi trary high-order Laguerre-Gaussian (LG) laser mode into an ultranarrow annu lus using a combination of an axicon and a lens. The method is shown to con serve the azimuthal phase variation of the illuminating LG mode. The thin a nnular (hollow) light beam generated possesses orbital angular momentum and is suitable for experimental studies with cold atoms.