The tweezers use lasers with a Bessel beam profile produced by illuminating an axicon with a Gaussian beam, which can trap several particles along the beam's axis.
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Petersen has, at various times, held director-level board positions at Hewlett-Packard Company, Capital Research and Management Company ( mutual funds ), Axicon Technologies, Juran Center for Leadership in Quality ( Member, Exec.
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An article published by the research team at St . Andrews University in the UK in the Sept . 12 issue of " Nature " describes axicon use in optical tweezers, which are commonly used for manipulating microscopic particles such as cells and colloids.
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One the most important applications of metasurfaces is to control the wavefront of electromagnetic waves by imparting local, gradient phase shift to the incoming waves, which leads to a generalization of the ancient laws of reflection and refraction . vortex generator, beam deflector, axicon and so on.
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