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Optics Letters


  • Editor: Alan E. Willner
  • Vol. 33, Iss. 6 — Mar. 15, 2008
  • pp: 584–586

Continuous sorting of Brownian particles using coupled photophoresis and asymmetric potential cycling

Tuck Wah Ng, Adrian Neild, and Pascal Heeraman  »View Author Affiliations

Optics Letters, Vol. 33, Issue 6, pp. 584-586 (2008)

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Feasible sorters need to function rapidly and permit the input and delivery of particles continuously. Here, we describe a scheme that incorporates (i) restricted spatial input location and (ii) orthogonal sort and movement direction features. Sorting is achieved using an asymmetric potential that is cycled on and off, whereas movement is accomplished using photophoresis. Simulations with 0.2 and 0.5 μ m diameter spherical particles indicate that sorting can commence quickly from a continuous stream. Procedures to optimize the sorting scheme are also described.

© 2008 Optical Society of America

OCIS Codes
(350.4990) Other areas of optics : Particles
(350.4855) Other areas of optics : Optical tweezers or optical manipulation

ToC Category:
Other Areas of Optics

Original Manuscript: December 6, 2007
Revised Manuscript: January 30, 2008
Manuscript Accepted: February 1, 2008
Published: March 12, 2008

Virtual Issues
Vol. 3, Iss. 4 Virtual Journal for Biomedical Optics

Tuck Wah Ng, Adrian Neild, and Pascal Heeraman, "Continuous sorting of Brownian particles using coupled photophoresis and asymmetric potential cycling," Opt. Lett. 33, 584-586 (2008)

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