Optical micromanipulation using supercontinuum Laguerre-Gaussian and Gaussian beams.
We characterize a single beam supercontinuum "white light" trap and determine the trap stiffness in the transverse trapping plane. We realize a holographic white light trapping system using a spatial light modulator, and explore the generation of a dual beam trap and characterize its performance. We also demonstrate optical trapping and rotation of particles using a supercontinuum vortex beam. It is shown that orbital angular momentum can be transferred to spheres trapped in a supercontinuum vortex. Quantified rotation rates are demonstrated.
Morris
J E
JE
SUPA, J.F. Allen Research Labs, School of Physics and Astronomy, University of St Andrews, Fife, KY16 9SS, UK. jem9@st-andrews.ac.uk
Carruthers
A E
AE
Mazilu
M
M
Reece
P J
PJ
Cizmar
T
T
Fischer
P
P
Dholakia
K
K
D000465:Algorithms; D004867:Equipment Design; D006696:Holography / Q000379:methods; D007834:Lasers; D008027:Light; D008846:Micromanipulation / Q000295:instrumentation* / Q000379:methods; D008853:Microscopy; D015233:Models, Statistical; D008962:Models, Theoretical; D016011:Normal Distribution; D052898:Optical Tweezers; D055095:Optics and Photonics