Symmetry and the generation and measurement of optical torque
نویسندگان
چکیده
منابع مشابه
Symmetry and the generation and measurement of optical torque
A key element in the generation of optical torque in optical traps, which occurs when electromagnetic angular momentum is transferred from the trapping beam to the trapped particle by scattering, is the symmetries of the scattering particle and the trapping beam. We discuss the effect of such symmetries on the generation and measurement of optical torque in optical tweezers, and some consequent...
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The ability to controllably rotate, align, or freely spin microparticles in optical tweezers greatly enhances the manipulation possible. A variety of different techniques for achieving alignment or rotation have been suggested and demonstrated. Although these methods are diverse, employing specially shaped particles, birefringent particles, multiple trapping beams, complex beam profiles, vortex...
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ژورنال
عنوان ژورنال: Journal of Quantitative Spectroscopy and Radiative Transfer
سال: 2009
ISSN: 0022-4073
DOI: 10.1016/j.jqsrt.2009.03.013