Creation and manipulation of three-dimensional optically trapped structures.
An interferometric pattern between two annular laser beams is used to construct three-dimensional (3D) trapped structures within an optical tweezers setup. In addition to being fully translatable in three dimensions, the trapped structure can be rotated controllably and continuously by introducing a frequency difference between the two laser beams. These interference patterns could play an important role in the creation of extended 3D crystalline structures.
MacDonald
M P
MP
School of Physics and Astronomy, St. Andrews University, North Haugh, St. Andrews, Fife KY16 9SS, Scotland.
Paterson
L
L
Volke-Sepulveda
K
K
Arlt
J
J
Sibbett
W
W
Dholakia
K
K