Method for altering light interactions with complex structured light

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United States of America Patent

PATENT NO 11567234
APP PUB NO 20190324171A1
SERIAL NO

16433764

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Abstract

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Structured beams, Bessel beams, Laguerre Gaussian beams, and focused Gaussian are used as a natural waveguide and its group velocity can be subluminal (slower than the speed of light) as compared to a Gaussian beam in free space. A free space dispersion relation for a Bessel beam, i.e., the dependence of its wavenumber on its angular frequency, is outlined from which the Bessel beam's subliminal group velocity is derived. For reasonable conditions a Bessel light beam has associated parameters that allow slowing near a critical frequency. The application of Bessel beams for a natural optical buffer in free space is presented. Optical transitions and selection rules in materials are altered by structured light carrying orbital angular momentum (OAM). Nano antennas are used to enhance the interactions of structured light.

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Patent Owner(s)

  • RESEARCH FOUNDATION OF THE CITY UNIVERSITY OF NEW YORK

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Alfano, Robert R Bronx, US 141 6856
Nolan, Daniel Painted Post, US 6 90

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