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Experimental research on a ring beam with a phase-only spatial light modulator

  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Usually the intensity distribution of laser is Gaussian, but practical laser applications often require beam shaping. A ring-shaped pattern may be required in the confocal scanning microscopic imaging. Because phase-only spatial light modulators (SLMs) can be flexibly used to convert light wave fronts, the investigation of beam shaping by SLMs has become an active research area. In this paper, a phase-only liquid crystal spatial light modulator is used to transform a single-mode He-Ne laser into a ring-shaped pattern. This generated ring beam is investigated experimentally, and the experimental results with the pinhole size are analyzed.

Original languageEnglish
Title of host publicationInternational Symposium on Optoelectronic Technology and Application 2014
Subtitle of host publicationLaser and Optical Measurement Technology; and Fiber Optic Sensors
EditorsYanbiao Liao, Jin Lu, Wei Wang, Mircea Guina, Haimei Gong, Zhichuan Niu, David Sampson
PublisherSPIE
ISBN (Electronic)9781628413830
DOIs
StatePublished - 2014
EventInternational Symposium on Optoelectronic Technology and Application 2014: Laser and Optical Measurement Technology; and Fiber Optic Sensors, IPTA 2014 - Beijing, China
Duration: 13 May 201415 May 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9297
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceInternational Symposium on Optoelectronic Technology and Application 2014: Laser and Optical Measurement Technology; and Fiber Optic Sensors, IPTA 2014
Country/TerritoryChina
CityBeijing
Period13/05/1415/05/14

Keywords

  • Beam shaping
  • Ring-shaped pattern
  • Spatial light modulator

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