Forces and torques on the nanoscale: from measurement to applications
Date
2012
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Source Title
Proceedings of SPIE Vol. 8458, Optical Trapping and Optical Micromanipulation IX
Print ISSN
0277-786X
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SPIE
Volume
8458
Issue
Pages
1 - 10
Language
English
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Abstract
The possibility of measuring microscopic forces down to the femtonewton range has opened new possibilities in fields such as biophysics and nanophotonics. I will review some of the techniques most often employed, namely the photonic force microscope (PFM) and the total internal reflection microscope (TIRM), which are able to measure tiny forces acting on optically trapped particles. I will then discuss several applications of such nanoscopic forces: from plasmonic optical manipulation, to self-propelled microswimmers, to self-organization in large ensembles of particles.