Document Detail

Spatial light modulator-controlled alignment and spinning of birefringent particles optically trapped in an array.
MedLine Citation:
PMID:  12962388     Owner:  NLM     Status:  MEDLINE    
We demonstrate the use of a phase-only liquid-crystal spatial light modulator (SLM) for polarization-controlled rotation and alignment of an array of optically trapped birefringent particles. A collimated beam incident upon a two-dimensional lenslet array yields multiple foci, scaled to produce optical gradient traps with efficient three-dimensional trapping potentials. The state of polarization of each trapping beam is encoded by the SLM, which acts as a matrix of wave plates with computer-controlled phase retardations. Control of the rotation frequency and alignment direction of the particles is achieved by the transfer of tunable photon spin angular momentum.
René L Eriksen; Peter J Rodrigo; Vincent R Daria; Jesper Glückstad
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Applied optics     Volume:  42     ISSN:  0003-6935     ISO Abbreviation:  Appl Opt     Publication Date:  2003 Sep 
Date Detail:
Created Date:  2003-09-09     Completed Date:  2003-10-29     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0247660     Medline TA:  Appl Opt     Country:  United States    
Other Details:
Languages:  eng     Pagination:  5107-11     Citation Subset:  IM    
Optics and Fluid Dynamics Department, Risø National Laboratory, P.O. Box 49, DK-4000 Roskilde, Denmark.
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MeSH Terms
Equipment Design
Microscopy, Polarization* / instrumentation
Optics and Photonics*
Particle Size

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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