The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 14, 2020

Filed:

Jan. 30, 2014
Applicant:

The Trustees of Columbia University IN the City of New York, New York, NY (US);

Inventor:

Nanfang Yu, New York, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 27/00 (2006.01); H01Q 1/38 (2006.01); H01Q 21/00 (2006.01); H01Q 21/06 (2006.01); G02F 1/015 (2006.01); G02B 21/00 (2006.01); G02B 5/00 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0075 (2013.01); G02B 5/008 (2013.01); G02B 21/0004 (2013.01); G02F 1/015 (2013.01); H01Q 1/38 (2013.01); H01Q 21/0087 (2013.01); H01Q 21/064 (2013.01); G02F 2203/10 (2013.01); G02F 2203/11 (2013.01);
Abstract

Exemplary embodiment can utilize the properties of tunable thin-film, material (e.g., graphene) to efficiently modulate the intensity, phase, and/or polarization of transmitted and/or reflected radiation, including mid-infrared ('mid-IR') radiation. Exemplary embodiments include planar antennas comprising tunable thin-film material sections and metallic sections disposed in contact with the tunable thin-film material sections, each metallic section having a gap with at least one dimension related to a wavelength of the radiation, which in some embodiments may be less than the wavelength. The metallic layer may comprise rods arrange in one or more shapes, or one or more apertures of one or more shapes. Embodiments of the antenna may also comprise a substrate, which may be a semiconductor or conductor in various embodiments. Embodiments also include systems, computer-implemented methods, devices, and computer-readable media for effectuating desired modulation of incident radiation by, e.g., varying the doping level of the tunable thin-film material.


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