Optically driven micromachine elements
Artikel i vetenskaplig tidskrift, 2001

We report on a proof of principle demonstration of an optically driven micromachine element. Optical angular momentum is transferred from a circularly polarized laser beam to a birefringent particle confined in an optical tweezers trap. The optical torque causes the particle to spin at up to 350 Hz, and this torque is harnessed to drive an optically trapped microfabricated structure. We describe a photolithographic method for producing the microstructures and show how a light driven motor could be used in a micromachine system.

alignment

angular-momentum

spin

particles

Författare

M. E. J. Friese

Halina Rubinsetein

Julie Gold

Chalmers, Teknisk fysik, Kemisk fysik

Petter Hagberg

Göteborgs universitet

Dag Hanstorp

Göteborgs universitet

Applied Physics Letters

0003-6951 (ISSN) 1077-3118 (eISSN)

Vol. 78 4 547-549

Ämneskategorier

Atom- och molekylfysik och optik

Nanoteknik

DOI

10.1063/1.1339995