Generation of a beam with a dark focus surrounded by regions of higher intensity: The optical bottle beam

Tipo de material: Texto

TextoSeries ; Optics Letters, 25(4), p.191-193, 2000Trabajos contenidos:

Arlt, J
Padgett, M.J

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Resumen: A computer-generated hologram is used to form an optical beam with a localized intensity null at its focus. The beam is a superposition of two Laguerre-Gaussian modes that are phased so that they interfere destructively to give a beam focus that is surrounded in all directions by regions of higher intensity. Beams of this kind will have applications in the optical trapping of macroscopic objects or atoms; hence the term optical bottle beam. © 2000 Optical Society of America.

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A computer-generated hologram is used to form an optical beam with a localized intensity null at its focus. The beam is a superposition of two Laguerre-Gaussian modes that are phased so that they interfere destructively to give a beam focus that is surrounded in all directions by regions of higher intensity. Beams of this kind will have applications in the optical trapping of macroscopic objects or atoms; hence the term optical bottle beam. © 2000 Optical Society of America.

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