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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/1398
- Title
- Optical lifting force under focused evanescent wave illumination: a ray optics model
- Author(s)
-
Chon, James W.;
Gan, Xiaosong;
Gu, Min;
Kuriakose, Smitha
- Abstract
- We propose a ray optics model to calculate the trapping force on a dielectric particle located on the interface between two media and illuminated by a focused evanescent field beam. Such a focused evanescent beam is produced by a high numerical aperture objective with a central obstruction whose size satisfies the total internal reflection condition on the interface. The dependence of the lifting force on the obstruction size, the particle size, and the distance of the particle from the interface is revealed.
- Publication type
- Journal article
- Research centre
- Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Centre for Micro-Photonics
- Source
- Journal of applied physics, Vol. 97, no. 8 (2005)
- Publication year
- 2005
- Publisher
- American Institute of Physics
- Language
- English
- Publisher URL
- http://dx.doi.org/10.1063/1.1863453
- Copyright
- © 2005 American Institute of Physics. Reproduced in accordance with the copyright policy of the publisher.
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