We experimentally create a ‘perfect’ vortex beam, which has a uniform ring profile and fixed radius. In contrast with other vortex fields, the intensity profile is independent of its topological charge. We then correct this field in situ using a single trapped particle as a probe. This results in a constant angular velocity for the particle regardless of its position on the beam circumference.
|Number of pages||4|
|Publication status||Published - 2015 Feb 1|
Bibliographical notePublisher Copyright:
© 2015, The Optical Society of Japan.
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics