Spin-to-Orbital Angular Momentum Conversion in a Strongly Focused Optical Beam

Y Zhao, J.S. Edgar, G.D.M. Jefferies, David McGloin, D.T. Chiu

Research output: Contribution to journalArticlepeer-review

546 Citations (Scopus)

Abstract

As a fundamental property of light, the angular momentum of photons has been of great interest. Here, we demonstrate that optical spin-to-orbital angular momentum conversion can occur in a homogeneous and isotropic medium. This Letter presents both theoretical and experimental studies of this conversion in a tightly focused beam and shows that the orbital rotation speeds of trapped particles are altered because of this conversion as predicted by theory.
Original languageEnglish
Article number073901
JournalPhysical Review Letters
Volume99
Issue number7
DOIs
Publication statusPublished - 17 Aug 2007

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