Search Results - benjamin+williams

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PMU-Embedded Analytics for Online Event Detection and Classification in Power Grids

The energy requirement of the world is increasing exponentially every year. With the power demand sites concentrated in the region with the highest population density, energy production sites must be located remotely. This isolation requires lengthy and complicated grids to be designed and manufactured to transmit power over long distances. Grid failures...

Published: 7/28/2025 | Inventor(s): Payman Dehghanian, Shiyuan Wang, Li Li

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Category(s): Technology Classifications > Industrial or Consumer Tech > Energy Infrastructure and Environment

2015-797 External Cavity Laser Based Upon Metasurfaces

SUMMARYUCLA researchers in the Department of Electrical Engineering have developed a novel approach for terahertz (THz) quantum-cascade (QC) lasers to achieve scalable output power, high quality diffraction limited, and directive output beams.BACKGROUNDIt is challenging for many types of semiconductor lasers to achieve a symmetric, directive, diffraction-limited,...

Published: 7/17/2025 | Inventor(s): Benjamin Williams, Luyao Xu

Keywords(s): Imaging, Medical Imaging, Photonics

Category(s): Medical Devices > Medical Imaging, Software & Algorithms > Security & Privacy, Optics & Photonics

2017-221 Focusing and Amplifying Reflectarray Metasurfaces for Stable Laser Cavities

Focusing And Amplifying Reflectarray Metasurfaces For Stable Laser CavitiesSUMMARYUCLA researchers in the Department of Electrical Engineering have developed a novel design of reflectarray metasurface that focuses and amplifies THz laser beams with record high efficiency and stability.BACKGROUNDTerahertz (THz) lasers are widely applicable in THz imaging...

Published: 7/17/2025 | Inventor(s): Benjamin Williams, Luyao Xu

Keywords(s): Antennas/Wireless, Electronics & Semiconductors, Photonics

Category(s): Electrical > Electronics & Semiconductors, Electrical > Wireless, Optics & Photonics

Distributed Feedback Fiber Laser Pumped by Multimode Diode Lasers

Researchers at the University of Arizona College of Optical Sciences and Canada's Carleton University recently succeeded in fabricating high reflectivity (>99%) Fiber Bragg Gratings (FBGs) into phosphate glass fibers using UV light and a phase mask technique. With this new manufacturing technique, fiber lasers can be created as single monolithic...

Published: 4/3/2023 | Inventor(s): Nasser Peyghambarian, Axel Schülzgen, Li Li, Jacques Albert

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Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Lasers & Other Sources

All-Fiber Multicore Fiber Laser Devices

Researchers at the University of Arizona have developed a compact, power-scalable, alignment-free fiber laser that takes a new approach to stabilizing phase-locked operation of multi-core fiber lasers by completely removing all free space optical components. This high-brightness, all-fiber laser package uses passive optical fiber spliced at both ends...

Published: 4/3/2023 | Inventor(s): Nasser Peyghambarian, Axel Schülzgen, Li Li

Keywords(s):

Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Fiber Optics, Technology Classifications > Imaging & Optics > Lasers & Other Sources