Journal
OPTICS EXPRESS
Volume 12, Issue 15, Pages 3605-3617Publisher
OPTICAL SOC AMER
DOI: 10.1364/OPEX.12.003605
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This paper examines the use of Gauss-Laguerre beams in STED microscopy. These types of beams are shown to have beneficial properties that can be utilised to generate stable, high quality STED beams resulting in an aberration-resilient generation volume. In this paper we obtain general expressions for Gauss-Laguerre beams being focused through a stratified medium and describe their optimization for STED microscopy purposes. Our results show that the circularly polarised, lowest order dark beam is the most beneficial for STED purposes. (C) 2004 Optical Society of America.
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