title: Symmetry dependence of holograms for optical trapping.
abstract: No iterative algorithm is necessary to calculate holograms for most holographic optical trapping patterns. Instead, holograms may be produced by a simple extension of the prisms-and-lenses method. This formulaic approach yields the same diffraction efficiency as iterative algorithms for any asymmetric or symmetric but nonperiodic pattern of points while requiring less calculation time. A slight spatial disordering of periodic patterns significantly reduces intensity variations between the different traps without extra calculation costs. Eliminating laborious hologram calculations should greatly facilitate interactive holographic trapping.
authors.affiliation: Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 253, 69120 Heidelberg, Germany. Jennifer.Curtis@urz.uni-heidelberg.de
authors.forename: Jennifer E
authors.initials: JE
authors.lastname: Curtis
authors.forename: Christian H J
authors.initials: CH
authors.lastname: Schmitz
authors.forename: Joachim P
authors.initials: JP
authors.lastname: Spatz
mesh_terms: D000465:Algorithms; D006696:Holography / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D008846:Micromanipulation / Q000379:methods*; D010812:Physical Stimulation / Q000379:methods*