Generating Bessel beams with a tunable acoustic gradient index of refraction lens

Tracy Tsai, Euan McLeod, Craig B. Arnold

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

17 Scopus citations

Abstract

The Tunable Acoustic Gradient Index of Refraction (TAG) lens is shown to be an alternative method of generating Bessel beam for optical manipulation. The TAG lens exhibits a combination of tunability, optical throughput, and fast switching speed, overcoming many limitations linked with conventional Bessel beam techniques. A refractive fluid is contained within a circular piezoelectric that is driven with an AC signal to establish a periodic index of refraction in the liquid. Simple changes in amplitude or frequency of the driving signal allows for the rapid modification to the transmitted pattern. The switching speed is characterized by the time to reach a steady state pattern, which is shown to depend primarily on the viscosity of the filling liquid. Times between 300 and 2000 μs are obtained corresponding to fluids with viscosity of 640 cs and 0.65 cs respectively.

Original languageEnglish (US)
Title of host publicationOptical Trapping and Optical Micromanipulation III
DOIs
StatePublished - Dec 1 2006
EventOptical Trapping and Optical Micromanipulation III - San Diego, CA, United States
Duration: Aug 13 2006Aug 17 2006

Publication series

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

Other

OtherOptical Trapping and Optical Micromanipulation III
CountryUnited States
CitySan Diego, CA
Period8/13/068/17/06

All Science Journal Classification (ASJC) codes

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

Keywords

  • Acousto-optics
  • Bessel beam
  • Gradient index lens
  • Optical trapping
  • TAG

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  • Cite this

    Tsai, T., McLeod, E., & Arnold, C. B. (2006). Generating Bessel beams with a tunable acoustic gradient index of refraction lens. In Optical Trapping and Optical Micromanipulation III [63261F] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6326). https://doi.org/10.1117/12.682945