Patent
Gradient index lenses and methods with zero spherical aberration
David R. Smith,Nathan Kundtz +1 more
TLDR
In this article, a gradient index lens with no aberrations and related methods for making such lenses are described, which can be a substantially spherically-shaped lens that has at least one side that is flattened such that a locus of focal points resides on a plane.Abstract:
Gradient index lenses with no aberrations and related methods for making such lenses are described. In one aspect, a gradient index lens can be a substantially spherically-shaped lens that has at least one side that is flattened such that a locus of focal points resides on a plane. A method for making a gradient index lens can include forming material layers, each of the material layers defining an effective refractive index, and laminating the material layers together to form a substantially spherically-shaped lens having at least one side that is flattened to a substantially planar surface. The material layers can have a gradient refractive index distribution such that a locus of focal points resides on the substantially planar surface.read more
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Patent
Controllable planar optical focusing system
Amir Arbabi,Andrei Faraon +1 more
TL;DR: In this paper, a first metasurface disposed over a substrate is used for modifying a phase front of an incident light beam, and a second surface is used to shape the modified phase front into a converging spherical phase front.
Patent
High gain, multi-beam antenna for 5G wireless communications
TL;DR: In this paper, a high gain, multi-beam lens antenna system for future fifth generation (5G) wireless networks is proposed, which includes a spherical dielectric lens fed with a plurality of radiating antenna elements.
Patent
Tunable medium linear coder
TL;DR: In this article, an antenna system includes a plurality of near-end electromagnetic (EM) radiating elements, a tunable medium, and control circuitry, which includes a controller operably coupled to the tunables.
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Admittance matrix calibration using external antennas for tunable metamaterial systems
TL;DR: In this paper, the authors present a system and methods for calibrating a tunable metamaterial device including a plurality of external antennas, where a sequence of port impedance vectors, (z (m), m) may be generated.
Patent
Offset-feed type microwave antenna
TL;DR: In this article, an offset feed type microwave antenna which comprises a feed source, a first metamaterial panel and a reflecting panel, wherein the reflecting panel is attached to the back side of the first metAMaterial panel was disclosed.
References
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Patent
Dielectric lens apparatus
TL;DR: In this paper, the radiation directivity of radio waves can be controlled more easily over a wider range by using the disclosed dielectric lens, where the distribution mode of the relative dielectrics constants in the laminate element is controlled.
Patent
Metamaterial gradient index lens
TL;DR: In this article, a gradient index element formed from a metamaterial, the material having an index profile and an index gradient profile, where the index profile includes at least one discontinuity and the gradient gradient profile is substantially continuous.
Patent
Optical package with alignment means and method of assembling an optical package
TL;DR: In this article, an optical package is provided including a housing having first and second ends, a ferrule receiving bore is formed in the first end, and an optics cavity is created in the second end.
Patent
Side viewing optical fiber endoscope
TL;DR: In this article, an optical fiber conveys light from a source at a proximal end, to a distal end, where a piezoelectric material tube applies a force that causes the distal part of the optical fiber to scan in a desired pattern.
Patent
Arrayed imaging systems having improved alignment and associated methods
Edward R. Dowski,Paulo E. X. Silveira,George C. Barnes,Vladislav V Chumachenko,Dennis W. Dobbs,Regis S. Fan,Gregory E. Johnson,Miodrag Scepanovic,Satoru Tachihara,Christopher J. Linnen,Inga Tamayo,Donald Combs,Howard E. Rhodes,James Xinping He,John J. Mader,Goran M. Rauker,Kenneth S. Kubala,Mark A. Meloni,Brian T. Schwartz,Robert H. Cormack,Michael Hepp,Kenneth Ashley Macon,Gary L. Duerksen +22 more
TL;DR: In this paper, the authors describe an array of detectors formed with a common base and a first array of layered optical elements, each one of the layers being optically connected with a detector in the array.