Holographic tweezers: A platform for plasmonics

Maria Dienerowitz, Graham M. Gibson, Richard Bowman, Miles J. Padgett

Research output: Chapter or section in a book/report/conference proceedingChapter in a published conference proceeding

2 Citations (SciVal)


We present a holographic tweezers workstation to optically trap and spectroscopically characterise metal nanoparticles. The versatility of the holographic tweezers allows us to create multiple traps manipulating several metal nanoparticles simultaneously. We developed an imaging system to view the nanoparticles in a transmission darkfield configuration without compromising the high numerical aperture of our trapping and viewing objective. In addition we implemented single particle spectroscopy to interrogate the trapped particles' properties with the ability to directly monitor the plasmonics coupling between particles while changing the distance between them. We also demonstrate a laser based method to generate fixed arrays of nanoparticles.

Original languageEnglish
Title of host publicationOptical Trapping and Optical Micromanipulation VIII
Publication statusPublished - 2011
EventOptical Trapping and Optical Micromanipulation VIII - San Diego, CA, USA United States
Duration: 21 Aug 201125 Aug 2011


ConferenceOptical Trapping and Optical Micromanipulation VIII
Country/TerritoryUSA United States
CitySan Diego, CA


  • Holographic tweezers
  • Metal nanoparticles
  • Nanoparticle spectroscopy

ASJC Scopus subject areas

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


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