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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
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Inventor(s): Nasser Peyghambarian, Axel Schülzgen, Li Li, Jacques Albert
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Lasers & Other Sources
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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
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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
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Carbon Nanostructure Synthesis from Carbon-Excess Explosives in Supercrital Fluid
This invention relates to the synthesis of carbon nanostructures such as graphene, fullerenes and nano-tubes, and more particular to the synthesis of such nanostructures from carbon-excess explosives in supercritical fluid.
Background:
Carbon nanostructures are synthesized from carbon-excess explosives having a negative oxygen balance. A supercritical...
Published: 6/20/2024
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Inventor(s): J. Warren Beck, Delmar Barker, William Owens, Mead Jordan
Keywords(s): carbon nanostructure, explosive, negative oxygen balance, supercritical CO2
Category(s): Technology Classifications > Materials, Technology Classifications > Materials > Nanomaterials
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Carbon Ion Beam Growth of Isotopically-Enriched Graphene and Isotope-Junctions
Isotopically-enriched graphene and isotope junctions are epitaxially grown on a catalyst substrate using a focused carbon ion beam technique. The focused carbon ion beam is filtered to pass substantially a single ion species including a single desired carbon isotope. The ion beam and filtering together provide a means to selectively isotopically-enrich...
Published: 3/12/2024
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Inventor(s): J. Warren Beck, Delmar Barker, William Owens
Keywords(s): epitaxial, graphene, ion-beam, isotope heterojunction
Category(s): Technology Classifications > Materials, Technology Classifications > Materials > Nanomaterials
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Fabrication of Pillared Graphene
This invention is a method of fabricating pillared graphene. This is accomplished by first constraining a layer of fullerenes between graphene sheets (the proto structure). Tether molecules may be employed to help chemically bind the fullerenes to the graphene at attachment points. Energy is applied to the proto structure via chemical reaction, thermal...
Published: 3/12/2024
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Inventor(s): J. Warren Beck, Delmar Barker, William Owens
Keywords(s): carbon heterostructure, carbon nanostructure, pillared graphene
Category(s): Technology Classifications > Materials, Technology Classifications > Materials > Composites
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