TY - JOUR
T1 - Orbital angular momentum transfer in helical Mathieu beams
AU - López-Mariscal, Carlos
AU - Gutiérrez-Vega, Julio C.
AU - Milne, Graham
AU - Dholakia, Kishan
PY - 2006
Y1 - 2006
N2 - We observe the transfer of orbital angular momentum to trapped particles in the azimuthally asymmetric transverse intensity distribution of a helical Mathieu beam. The average rotation rate, instantaneous angular displacement and terminal velocity of the trapped particles are measured experimentally. The angular dependence of these parameters is found to be in good agreement with the variation of the optical gradient force, the transfer of OAM from the wavefield and the Stokes drag force.
AB - We observe the transfer of orbital angular momentum to trapped particles in the azimuthally asymmetric transverse intensity distribution of a helical Mathieu beam. The average rotation rate, instantaneous angular displacement and terminal velocity of the trapped particles are measured experimentally. The angular dependence of these parameters is found to be in good agreement with the variation of the optical gradient force, the transfer of OAM from the wavefield and the Stokes drag force.
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U2 - 10.1364/OE.14.004183
DO - 10.1364/OE.14.004183
M3 - Article
C2 - 19516570
AN - SCOPUS:61849115107
VL - 14
SP - 4183
EP - 4188
JO - Optics Express
JF - Optics Express
SN - 1094-4087
IS - 9
ER -