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The compressing ion-beam ion shutter developed at The University of Arizona is composed of a series of electrically charged screens. By varying the relative voltages on the screens, the flow of ions into the detector chamber is blocked or opened. When the shutter is first opened, ions accumulate between the screens. When the shutter voltage is changed,...

Published: 3/12/2024 | Inventor(s): Roger Sperline

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Category(s): Technology Classifications > Engineering & Physical Sciences, Technology Classifications > Engineering & Physical Sciences > Devices & Instrumentation, Technology Classifications > Engineering & Physical Sciences > Devices & Instrumentation > Mass Spectrometry

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

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

Micro Faraday-Element Array Detector for Ion Mobility Spectroscopy

The novel ion mobility spectrometry (IMS) includes a drift tube having a collecting surface covering a collecting area at one end of the tube. The surface comprises a plurality of closely spaced conductive elements on a non-conductive substrate, each conductive element being electrically insulated from each other element. A plurality of capacitive transimpedance...

Published: 3/12/2024 | Inventor(s): M Denton, Roger Sperline, Christopher Gresham, Phillip Rodacy

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Differential Transimpedance Amplifier Circuit for Correlated Differential Amplification

Researchers at the University of Arizona have created a differential transimpedance amplifier circuit for correlated differential amplification. The amplifier circuit increases electronic signal-to-noise ratio in charge detection circuits designed for the detection of very small quantities of electrical charge and/or very weak electromagnetic waves....

Published: 3/12/2024 | Inventor(s): M Denton, Roger Sperline, Christopher Gresham

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