Optical tweezers for undergraduates: Theoretical analysis and experiments
نویسنده
چکیده
A theoretical treatment of optical tweezers is presented at a level suitable for undergraduates. We explore the Rayleigh and the geometrical optics regimes with an emphasis on the latter. We discuss a model for the geometrical optics regime, including spherical aberration effects, and show that the model can easily be implemented numerically. A comparison of the model with experimental data yields excellent agreement between theory and experiment. We also briefly discuss a theory of optical tweezers valid for microspheres of any size. © 2009 American Association of Physics Teachers. DOI: 10.1119/1.3138698
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