Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 4183-4188 |
| Number of pages | 6 |
| Journal | Optics Express |
| Volume | 14 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2006 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
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Orbital angular momentum transfer in helical Mathieu beams. / López-Mariscal, Carlos; Gutiérrez-Vega, Julio C.; Milne, Graham; Dholakia, Kishan.
In: Optics Express, Vol. 14, No. 9, 01.01.2006, p. 4183-4188.Research output: Contribution to journal › Article
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 - 2006/1/1
Y1 - 2006/1/1
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.
UR - http://www.scopus.com/inward/record.url?scp=61849115107&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=61849115107&partnerID=8YFLogxK
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 -