Colloidal traffic in static and dynamic optical lattices

Ryan L. Smith, G. C. Spalding, S. L. Neale, K. Dholakia, M. P. MacDonald

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Here, we present real-space studies of Brownian hard sphere transport though externally defined potential energy landscapes. Specifically, we examine how colloidal particles are re-routed as moderately dense suspensions pass through optical lattices, concentrating our attention upon the degree of sorting that occurs in multi-species flows. While methodologies reported elsewhere for microfluidic sorting of colloidal or biological matter employ active intervention to identify and selectively re-route particles one-by-one, the sorting described here is passive, with intrinsically parallel processing. In fact, the densities of co-flowing species examined here are sufficient to allow for significant many-body effects, which generally reduce the efficiencies of re-routing and sorting. We have studied four classes of transport phenomena, involving colloidal traffic within, respectively, a static lattice with a DC fluid flow, a continuously translating lattice with a DC fluid flow, a flashing lattice with AC fluid flow, and a flashing lattice with combined AC and DC fluid flow. We find that continuous lattice translation helps to reduce nearest neighbor particle distances, providing promise for efficiency improvements in future high throughput applications.

Original languageEnglish
Title of host publicationOptical Trapping and Optical Micromanipulation III
DOIs
Publication statusPublished - 2006 Dec 1
EventOptical Trapping and Optical Micromanipulation III - San Diego, CA, United States
Duration: 2006 Aug 132006 Aug 17

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6326
ISSN (Print)0277-786X

Conference

ConferenceOptical Trapping and Optical Micromanipulation III
CountryUnited States
CitySan Diego, CA
Period06/8/1306/8/17

Fingerprint

Optical lattices
Optical Lattice
Sorting
traffic
Fluid Flow
Flow of fluids
Traffic
classifying
fluid flow
direct current
Continuous Lattice
Transport Phenomena
Energy Landscape
alternating current
Microfluidics
Hard Spheres
Parallel Processing
Potential energy
High Throughput
Nearest Neighbor

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Smith, R. L., Spalding, G. C., Neale, S. L., Dholakia, K., & MacDonald, M. P. (2006). Colloidal traffic in static and dynamic optical lattices. In Optical Trapping and Optical Micromanipulation III [63262N] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6326). https://doi.org/10.1117/12.684278
Smith, Ryan L. ; Spalding, G. C. ; Neale, S. L. ; Dholakia, K. ; MacDonald, M. P. / Colloidal traffic in static and dynamic optical lattices. Optical Trapping and Optical Micromanipulation III. 2006. (Proceedings of SPIE - The International Society for Optical Engineering).
@inproceedings{0f25171021af481284309b6d6c31d395,
title = "Colloidal traffic in static and dynamic optical lattices",
abstract = "Here, we present real-space studies of Brownian hard sphere transport though externally defined potential energy landscapes. Specifically, we examine how colloidal particles are re-routed as moderately dense suspensions pass through optical lattices, concentrating our attention upon the degree of sorting that occurs in multi-species flows. While methodologies reported elsewhere for microfluidic sorting of colloidal or biological matter employ active intervention to identify and selectively re-route particles one-by-one, the sorting described here is passive, with intrinsically parallel processing. In fact, the densities of co-flowing species examined here are sufficient to allow for significant many-body effects, which generally reduce the efficiencies of re-routing and sorting. We have studied four classes of transport phenomena, involving colloidal traffic within, respectively, a static lattice with a DC fluid flow, a continuously translating lattice with a DC fluid flow, a flashing lattice with AC fluid flow, and a flashing lattice with combined AC and DC fluid flow. We find that continuous lattice translation helps to reduce nearest neighbor particle distances, providing promise for efficiency improvements in future high throughput applications.",
author = "Smith, {Ryan L.} and Spalding, {G. C.} and Neale, {S. L.} and K. Dholakia and MacDonald, {M. P.}",
year = "2006",
month = "12",
day = "1",
doi = "10.1117/12.684278",
language = "English",
isbn = "0819464058",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Optical Trapping and Optical Micromanipulation III",

}

Smith, RL, Spalding, GC, Neale, SL, Dholakia, K & MacDonald, MP 2006, Colloidal traffic in static and dynamic optical lattices. in Optical Trapping and Optical Micromanipulation III., 63262N, Proceedings of SPIE - The International Society for Optical Engineering, vol. 6326, Optical Trapping and Optical Micromanipulation III, San Diego, CA, United States, 06/8/13. https://doi.org/10.1117/12.684278

Colloidal traffic in static and dynamic optical lattices. / Smith, Ryan L.; Spalding, G. C.; Neale, S. L.; Dholakia, K.; MacDonald, M. P.

Optical Trapping and Optical Micromanipulation III. 2006. 63262N (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6326).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Colloidal traffic in static and dynamic optical lattices

AU - Smith, Ryan L.

AU - Spalding, G. C.

AU - Neale, S. L.

AU - Dholakia, K.

AU - MacDonald, M. P.

PY - 2006/12/1

Y1 - 2006/12/1

N2 - Here, we present real-space studies of Brownian hard sphere transport though externally defined potential energy landscapes. Specifically, we examine how colloidal particles are re-routed as moderately dense suspensions pass through optical lattices, concentrating our attention upon the degree of sorting that occurs in multi-species flows. While methodologies reported elsewhere for microfluidic sorting of colloidal or biological matter employ active intervention to identify and selectively re-route particles one-by-one, the sorting described here is passive, with intrinsically parallel processing. In fact, the densities of co-flowing species examined here are sufficient to allow for significant many-body effects, which generally reduce the efficiencies of re-routing and sorting. We have studied four classes of transport phenomena, involving colloidal traffic within, respectively, a static lattice with a DC fluid flow, a continuously translating lattice with a DC fluid flow, a flashing lattice with AC fluid flow, and a flashing lattice with combined AC and DC fluid flow. We find that continuous lattice translation helps to reduce nearest neighbor particle distances, providing promise for efficiency improvements in future high throughput applications.

AB - Here, we present real-space studies of Brownian hard sphere transport though externally defined potential energy landscapes. Specifically, we examine how colloidal particles are re-routed as moderately dense suspensions pass through optical lattices, concentrating our attention upon the degree of sorting that occurs in multi-species flows. While methodologies reported elsewhere for microfluidic sorting of colloidal or biological matter employ active intervention to identify and selectively re-route particles one-by-one, the sorting described here is passive, with intrinsically parallel processing. In fact, the densities of co-flowing species examined here are sufficient to allow for significant many-body effects, which generally reduce the efficiencies of re-routing and sorting. We have studied four classes of transport phenomena, involving colloidal traffic within, respectively, a static lattice with a DC fluid flow, a continuously translating lattice with a DC fluid flow, a flashing lattice with AC fluid flow, and a flashing lattice with combined AC and DC fluid flow. We find that continuous lattice translation helps to reduce nearest neighbor particle distances, providing promise for efficiency improvements in future high throughput applications.

UR - http://www.scopus.com/inward/record.url?scp=33751437932&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33751437932&partnerID=8YFLogxK

U2 - 10.1117/12.684278

DO - 10.1117/12.684278

M3 - Conference contribution

AN - SCOPUS:33751437932

SN - 0819464058

SN - 9780819464057

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Optical Trapping and Optical Micromanipulation III

ER -

Smith RL, Spalding GC, Neale SL, Dholakia K, MacDonald MP. Colloidal traffic in static and dynamic optical lattices. In Optical Trapping and Optical Micromanipulation III. 2006. 63262N. (Proceedings of SPIE - The International Society for Optical Engineering). https://doi.org/10.1117/12.684278