Quantitative pupil analysis in stimulated emission depletion microscopy using phase retrieval.

Emil B Kromann, Travis J Gould, Manuel F Juette, Jens E Wilhjelm, Joerg Bewersdorf

Research output: Contribution to journalJournal articleResearchpeer-review

314 Downloads (Pure)

Abstract

The resolution attainable with stimulated emission depletion (STED) microscopy greatly depends on the quality of the STED laser focus. So far, visual inspection of a measured STED focus has been the only convenient means of gauging the source of aberrations. Here we describe a method, requiring no instrument modifications, for obtaining an equivalent to the complex pupil function at the back aperture of the objective and show that it provides quantitative information about aberration sources (including aberrations induced by the objective or sample). We show the accuracy of this field representation to be sufficient for reconstructing the STED focus in three dimensions and determining corrective steps.
Original languageEnglish
JournalOptics Letters
Volume37
Issue number11
Pages (from-to)1805-1807
ISSN0146-9592
Publication statusPublished - 2012

Fingerprint Dive into the research topics of 'Quantitative pupil analysis in stimulated emission depletion microscopy using phase retrieval.'. Together they form a unique fingerprint.

Cite this