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Optical Tweezers Charlie Mueller Jesse Fogleman
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Qualitative Description
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Qualitative Description 2
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Ray Tracing Analysis of Force Trap Force vector exerted by light on dielectric particle as a result of momentum conservation Incoming light ray Dielectric particle being trapped Exiting light ray Scattering force vector
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The force on charge particle in an electric field is given by the Lorentz Force Equation: Electric Dipole Approximation
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Sources Used: A. Ashkin, J.M. Dziedzic, J.E. Bjorkholm and S. Chu. 1986. "Observation of a Single-Beam Gradient Force Optical Trap for Dielectric Particles." Opt. Lett. 11 (5) 288-290. Block S. M. 1992. "Making light work with optical tweezers." Nature 360(6403):493-5. Dholakia, Kishan, Gabriel Spaulding, and Michael Macdonald. "Optical Tweezers: the next Generation." Physics World Oct. 2002. Physicsweb.org. Oct. 2002. Web. 13 Nov. 2010. http://physicsworldarchive.iop.org/index.cfm?action=summary&doc=15%2F1 0%2Fphwv15i10a37%40pwa-xml&qt http://physicsworldarchive.iop.org/index.cfm?action=summary&doc=15%2F1 0%2Fphwv15i10a37%40pwa-xml&qt Pressurized Viruses, Gelbart, et al.Science 27 March 2009: 1682- 1683.DOI:10.1126/science.1170645 http://www.absoluteastronomy.com/topics/Optical_tweezers http://www.absoluteastronomy.com/topics/Optical_tweezers
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