Abstract

We explore a simple, inexpensive approach to large particle manipulation using diode laser bar optical trapping. This method overcomes limitations that prevent conventional point laser traps from effectively directing large particles. Expanding a previously developed line optical trap model into larger particle regimes, we verify and examine the advantages and limitations of diode laser bar trapping for manipulating particles greater than 100 µm in diameter within fluidic environments for biochemical, biological, and biomedical applications.

© 2009 OSA

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History
Original Manuscript: August 20, 2009
Manuscript Accepted: September 1, 2009
Published: September 3, 2009

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Author Affiliations

Robert W. Applegate Jr., Steven W. Graves

Center for Biomedical Engineering, The University of New Mexico, 222 University Blvd NE 
Centennial Engineering Center Room 2041, Albuquerque, NM 87131, USANational Flow Cytometry Resource, Los Alamos National Laboratory, MS M888 Los Alamos, NM 87545, USA

David W. M. Marr

Chemical Engineering Department, Colorado School of Mines, Golden, CO 80401, USA

Jeff Squier

Physics Department, Colorado School of Mines, Golden, CO 80401, USA

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