Observation of microsphere movement driven by optical pulse: comment |
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Authors: | Požar Tomaž Možina Janez |
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Institution: | Faculty of Mechanical Engineering, University of Ljubljana, A?ker?eva 6, 1000 Ljubljana, Slovenia. tomaz.pozar@fs.uni‐lj.si |
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Abstract: | We show that fiber-delivered, pulsed laser propulsion of glass microspheres, as observed in a recent Letter Opt. Lett. 36, 1996 (2011).], due to only radiation pressure cannot explain the measured maximum velocity of microspheres. Our considerations, based on the reported results, indicate that the main momentum transfer mechanism is due to mass recoil that very likely follows a dielectric breakdown near or on the surface of the microsphere. |
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