Force measurement on microspheres in an optical standing wave
作者： W. Mu , Z. Li , L. Luan , G. C. Spalding , G. Wang
关键词: Rayleigh scattering 、 Physics 、 Equipartition theorem 、 Molecular physics 、 Optical instrument 、 Standing wave 、 Optics 、 Optical tweezers 、 Drag 、 Optical force 、 Optical lattice
摘要: We have measured the optical forces on isolated particles trapped in an lattice generated by interference of two coherent laser beams. Two independent methods are employed here that based equipartition theorem and hydrodynamic drag. The force a particle depends strongly ratio diameter to period lattice. Based observed size dependence, we developed approach allows tunable, size-dependent selection subset from ensemble containing mixed particles.
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