Long distance beam propagation in colloidal suspensions: Comparison between theory and experiment

E. M. Wright, W. M. Lee, P. L. Giscard, K. Dholakia

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

1 Citation (Scopus)

Abstract

It has been conjectured for some time that colloidal suspensions can act as artificial self-guiding media and support solitary beam-like solutions. The optical forces, along a diverging Gaussian beam, act to pull and retain the diffusing nanoparticles into its beam path. Consequently, the nanoparticle suspension acts to guide the diverging Gaussian beam and maintain the beam waist over a distance longer than its Rayleigh range. In this paper, we present a detailed analysis of beam propagation within nanoparticle suspensions. Using a recently developed theory by El-Ganainy et. al. (1), we seek to understand the beam dynamics by monitoring the scattered light from the particles along the propagation of the beam. An initial comparison of the theoretical and the experimental results shows interesting deviations due to the exponential nature of the optical nonlinearity.

Original languageEnglish
Title of host publicationOptical Trapping and Optical Micromanipulation V
DOIs
Publication statusPublished - 2008 Nov 21
EventOptical Trapping and Optical Micromanipulation V - San Diego, CA, United States
Duration: 2008 Aug 102008 Aug 13

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7038
ISSN (Print)0277-786X

Conference

ConferenceOptical Trapping and Optical Micromanipulation V
CountryUnited States
CitySan Diego, CA
Period08/8/1008/8/13

Fingerprint

Colloidal Suspensions
Beam Propagation
colloids
Suspensions
Gaussian beams
Nanoparticles
propagation
Gaussian Beam
Experiment
Experiments
Optical Forces
nanoparticles
Monitoring
Rayleigh
Deviation
Nonlinearity
Propagation
Path
Experimental Results
Range of data

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

Wright, E. M., Lee, W. M., Giscard, P. L., & Dholakia, K. (2008). Long distance beam propagation in colloidal suspensions: Comparison between theory and experiment. In Optical Trapping and Optical Micromanipulation V [70380P] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7038). https://doi.org/10.1117/12.796243
Wright, E. M. ; Lee, W. M. ; Giscard, P. L. ; Dholakia, K. / Long distance beam propagation in colloidal suspensions : Comparison between theory and experiment. Optical Trapping and Optical Micromanipulation V. 2008. (Proceedings of SPIE - The International Society for Optical Engineering).
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Wright, EM, Lee, WM, Giscard, PL & Dholakia, K 2008, Long distance beam propagation in colloidal suspensions: Comparison between theory and experiment. in Optical Trapping and Optical Micromanipulation V., 70380P, Proceedings of SPIE - The International Society for Optical Engineering, vol. 7038, Optical Trapping and Optical Micromanipulation V, San Diego, CA, United States, 08/8/10. https://doi.org/10.1117/12.796243

Long distance beam propagation in colloidal suspensions : Comparison between theory and experiment. / Wright, E. M.; Lee, W. M.; Giscard, P. L.; Dholakia, K.

Optical Trapping and Optical Micromanipulation V. 2008. 70380P (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7038).

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

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Wright EM, Lee WM, Giscard PL, Dholakia K. Long distance beam propagation in colloidal suspensions: Comparison between theory and experiment. In Optical Trapping and Optical Micromanipulation V. 2008. 70380P. (Proceedings of SPIE - The International Society for Optical Engineering). https://doi.org/10.1117/12.796243