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Near-field scanning optical microscopy with laser trapping

Ke, Pu Chun (2000) Near-field scanning optical microscopy with laser trapping. PhD thesis, Victoria University of Technology.

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Abstract

This thesis is concerned with a comprehensive understanding of particle-trapped near-field scanning optical microscopy. This technique is unique in that it relies on the collection of scattered evanescent waves from a sample with a laser-trapped particle. In comparison with the other forms of near-field scanning optical microscopy with a tapered fibre or a metallic needle probe, particle-trapped near-field scanning optical microscopy offers several advantages such as no need of distance control, high signal collection efficiency, and easy replacement of a particle probe. In consideration of the major problems of particle-trapped near-field scanning optical microscopy such as low signal strength and low transverse scanning speed due to the use of a dielectric particle, a two-dimensional laser-trapped metallic particle is proposed as a near-field probe for imaging.

Item Type: Thesis (PhD thesis)
Uncontrolled Keywords: Scanning probe microscopy, Lasers, optical microscopy, evanescent waves, depolarisation
Subjects: FOR Classification > 0205 Optical Physics
Faculty/School/Research Centre/Department > School of Engineering and Science
Depositing User: VU Library
Date Deposited: 18 Aug 2010 02:07
Last Modified: 23 May 2013 16:45
URI: http://vuir.vu.edu.au/id/eprint/15616
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