An optical torque wrench-simple and general optical rotation

A. I. Bishop, T. A. Nieminen, N. R. Heckenberg, H. Rubinsztein-Dunlop

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

Abstract

A simple and general method of optical rotation of microparticles in optical traps is demonstrated, avoiding all of the problems associated with the usual methods of rotation. The applied torque are optically measured; making the technique useful for a wide range of quantitative applications using naturally occurring particles as well as for orientational manipulation of specimens. Generation of optical torque is modelled by calculating the scattering by the particle in the trap using the T-matrix method. Results confirm that the torque results from the transfer of spin angular momentum.

Original languageEnglish
Title of host publication2003 European Quantum Electronics Conference, EQEC 2003
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages1
ISBN (Electronic)0780377338, 9780780377332
DOIs
Publication statusPublished - 1 Jan 2003
Externally publishedYes
EventEuropean Quantum Electronics Conference, EQEC 2003 - Munich, Germany
Duration: 22 Jun 200327 Jun 2003

Conference

ConferenceEuropean Quantum Electronics Conference, EQEC 2003
CountryGermany
CityMunich
Period22/06/0327/06/03

Cite this

Bishop, A. I., Nieminen, T. A., Heckenberg, N. R., & Rubinsztein-Dunlop, H. (2003). An optical torque wrench-simple and general optical rotation. In 2003 European Quantum Electronics Conference, EQEC 2003 [1314227] IEEE, Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/EQEC.2003.1314227