The use of Gauss-Laguerre vector beams in STED microscopy
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Open Access
- 26 July 2004
- journal article
- Published by Optica Publishing Group in Optics Express
- Vol. 12 (15) , 3605-3617
- https://doi.org/10.1364/opex.12.003605
Abstract
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.Keywords
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