Converging thermal lenses, and optical systems, kits, and methods for formation and use thereof

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12199396
APP PUB NO 20210336406A1
SERIAL NO

17238863

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Abstract

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A converging thermal lens is transiently formed by directing a shaped pulsed light beam having at least a first wavelength to a thermo-optic material, whereby the thermo-optic material absorbs the light beam and experiences local heating in response thereto. The heating induces a refractive index profile in the thermo-optic material that temporarily forms the converging thermal lens. In some embodiments, the refractive index of the thermo-optic material has a negative temperature dependence, and the pulsed light beam is shaped to have an inverted light pattern with a maximum intensity in an outer region of the beam cross-section. Alternatively, in some embodiments, the refractive index of the thermo-optic material has a positive temperature dependence, and the pulsed light beam is shaped to have a radially-varying light pattern with a maximum intensity in a central region of the beam cross-section.

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Patent Owner(s)

Patent OwnerAddress
UNIVERSITY OF MARYLAND COLLEGE PARK0134 LEE BUILDING 7809 REGENTS DRIVE UM VENTURES COLLEGE PARK MD 20742

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Edrei, Eitan Jerusalem, IL 4 13
Scarcelli, Giuliano Washington, US 21 426

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