Optical coherence measurements of vortex light fields using optically manipulated micro-apertures

W. M. Lee, K. Dholakia

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

Abstract

In this paper, we make use of optically controlled phase sampling methods with the use of a dual beam optical trapping system. The dual beam trap enables us to remotely position a single birefringent particle and a second silica microsphere to form a Young's slits type experiments within a probe laser field. The controlled rotation of the birefringent particle means that it acts as both a micro-diffuser and diffracting aperture at the same time. By observing the visibility of the far-field interference fringes, we measure the relative mutual coherence of the optical field between any two selected point sources. This technique provides us with a unique localized sampling method.

Original languageEnglish
Title of host publicationOptical Trapping and Optical Micromanipulation IV
DOIs
Publication statusPublished - 2007 Dec 1
EventOptical Trapping and Optical Micromanipulation IV - San Diego, CA, United States
Duration: 2007 Aug 262007 Aug 29

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6644
ISSN (Print)0277-786X

Conference

ConferenceOptical Trapping and Optical Micromanipulation IV
CountryUnited States
CitySan Diego, CA
Period07/8/2607/8/29

All Science Journal Classification (ASJC) codes

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

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  • Cite this

    Lee, W. M., & Dholakia, K. (2007). Optical coherence measurements of vortex light fields using optically manipulated micro-apertures. In Optical Trapping and Optical Micromanipulation IV [66440Y] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6644). https://doi.org/10.1117/12.734131