Optical guiding with continuous wave and femtosecond lasers

H. Little, C. T.A. Brown, V. Garcés-Chávez, W. Sibbett, K. Dholakia

Research output: Contribution to journalConference articlepeer-review


Optical guiding of microscopic particles in femtosecond and continuous wave Bessel light beams is studied and compared. We confirm that optical guiding is an average power effect and observe no difference in the guiding velocities of non-fluorescing polymer spheres. Furthermore, we observe second harmonic generation of guided KTP crystallites in femtosecond Bessel light beams. This observation opens up the prospect of using multi-photon effects in optical manipulation for applications such as optical identification of guided cells for sorting purposes.

Original languageEnglish
Article number71
Pages (from-to)524-529
Number of pages6
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2004
EventOptical Trapping and Optical Micromanipulation - Denver, CO, United States
Duration: 2004 Aug 22004 Aug 6

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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