Minimizing intensity fluctuations in dynamic holographic optical tweezers by restricted phase change.
We present a method for reducing intensity fluctuations that typically occur when a spatial light modulator is updated between consecutive computer generated holograms. The method is applicable to most iterative hologram generating algorithms and minimizes the average phase difference between consecutive holograms. Applications with high stability requirements, such as optical force measurement with holographic optical tweezers, should benefit from this improvement.
Persson
Martin
M
Department of Physics, University of Gothenburg, SE-412 96 Göteborg, Sweden. martin.persson@physics.gu.se
Engström
David
D
Frank
Anders
A
Backsten
Jan
J
Bengtsson
Jörgen
J
Goksör
Mattias
M
D000465:Algorithms; D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006696:Holography / Q000295:instrumentation*; D008962:Models, Theoretical; D052898:Optical Tweezers; D013314:Stress, Mechanical