Selectable light-sheet uniformity using tuned axial scanning

Martí Duocastella, Craig B. Arnold, Jason Puchalla

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

Light-sheet fluorescence microscopy (LSFM) is an optical sectioning technique capable of rapid three-dimensional (3D) imaging of a wide range of specimens with reduced phototoxicity and superior background rejection. However, traditional light-sheet generation approaches based on elliptical or circular Gaussian beams suffer an inherent trade-off between light-sheet thickness and area over which this thickness is preserved. Recently, an increase in light-sheet uniformity was demonstrated using rapid biaxial Gaussian beam scanning along the lateral and beam propagation directions. Here we apply a similar scanning concept to an elliptical beam generated by a cylindrical lens. In this case, only z-scanning of the elliptical beam is required and hence experimental implementation of the setup can be simplified. We introduce a simple dimensionless uniformity statistic to better characterize scanned light-sheets and experimentally demonstrate custom tailored uniformities up to a factor of 5 higher than those of unscanned elliptical beams. This technique offers a straightforward way to generate and characterize a custom illumination profile that provides enhanced utilization of the detector dynamic range and field of view, opening the door to faster and more efficient 2D and 3D imaging.

Original languageEnglish (US)
Pages (from-to)250-259
Number of pages10
JournalMicroscopy Research and Technique
Volume80
Issue number2
DOIs
StatePublished - Feb 1 2017

All Science Journal Classification (ASJC) codes

  • Anatomy
  • Histology
  • Instrumentation
  • Medical Laboratory Technology

Keywords

  • (180.2520) fluorescence microscopy
  • (180.6900) three-dimensional microscopy
  • OCIS codes: (110.1080) active or adaptive optics

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