ISSN:
1349-9432
Keywords:
optical micro-rotator
;
cylindrical rotator
;
optical torque
;
optical tweezers
;
ray-tracing
;
viscosity
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract A newly designed cylindrical optical micro-rotator which has slopes for trapping and rotation on its upper surface is proposed. The cylindrical shape is effective in decreasing viscous drag force (damping factor) in the medium. A ray-tracing method considering the beam waist is employed to analyze the radiation pressure exerted on the upper surface of the rotator. We have demonstrated optical trapping and high speed rotation for various optical beam parameters such as the lens numerical aperture and the Gaussian mode profile as well as rotator shape parameters including oblique angle, height and diameter.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s10043-997-0447-9
