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Updated: May 28, 2026

Video-rate Scanning Confocal Microscopy and Microendoscopy
Published on: October 20, 2011
Beam position stabilization for a confocal multiphoton microscope
P Gross1, L Kleinschmidt, S Beer
1Institute of Applied Physics, University of Münster, Münster, Germany. p.gross@uni‐muenster.de
Abstract:
The influence of beam-pointing on scanning confocal microscopy is investigated. The beam displacement is measured using a quadrant photodiode, and the apparent movement of a sub-micron-sized particle observed by second-harmonic microscopy is linked to the beam displacement. A simple beam-pointing stabilization is implemented, and improvement of beam stability by three orders of magnitude on long time scales is achieved.
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