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17 August 2014 Chirality enables unusual optical force (presentation video)
Shubo Wang, Che Ting Chan
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Proceedings Volume 9163, Plasmonics: Metallic Nanostructures and Their Optical Properties XII; 91631V (2014) https://doi.org/10.1117/12.2062811
Event: SPIE NanoScience + Engineering, 2014, San Diego, California, United States
Abstract
Light can exert radiation pressure on any object it encounters and that resulting optical force can be used to manipulate particles. It is natural to expect that light should push a particle forward. However, our results indicate that a lateral force can be induced in a direction perpendicular to that of the incident photon momentum if a chiral particle is placed above a substrate that does not break any left-right symmetry. Analytical theory shows that the coupling between structural chirality and the light reflected from the substrate surface induces this sideway force that pushes chiral particles with opposite handedness in opposite directions.
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Shubo Wang and Che Ting Chan "Chirality enables unusual optical force (presentation video)", Proc. SPIE 9163, Plasmonics: Metallic Nanostructures and Their Optical Properties XII, 91631V (17 August 2014); https://doi.org/10.1117/12.2062811
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KEYWORDS
Particles
Video
Current controlled current source
Nanostructures
Optical properties
Plasmonics
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