Search Results - photonic+crystals

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Terbium Oxyhydroxide for Better Faraday Rotators
This crystal growth method utilizes a hydrothermal process to produce single crystals for use in high-power industrial lasers. The global market for industrial lasers is projected to grow from $4.6 billion in 2015 to $6.3 billion by 2020, reflecting a sustained increase in manufacturing interest. The industry standard, Terbium Gallium Garnet (TGG),...
Published: 1/5/2024   |   Inventor(s): Joseph Kolis, Duminda Sanjeewa, Kyle Fulle
Keywords(s): Photonic Crystals
Category(s): Manufacturing
Chromogenic Vapor Sensor that Precisely Detects Various Gases
Convenient, Inexpensive, Reusable Sensors Easy to Install or Use in the FieldThis chromogenic vapor sensor, utilizing a new type of shape memory polymer, shows a striking color change when exposed to different vapors. Commonly available vapor sensors work by monitoring the change in electrical properties of a conducting device; they are expensive, bulky,...
Published: 6/27/2021   |   Inventor(s): Peng Jiang, Yin Fang, Beverly Ge
Keywords(s): 3D, micropores, Photonic crystals, sensor, shape memory polymer
Category(s): Technology Classifications > Engineering > Chemical, Technology Classifications > Engineering > Instrumentation-Sensors-Photonics, Technology Classifications > Engineering > Materials
Pressure-Sensitive Hydrogels for Measuring Intraocular Pressure In-Situ
Changes Color in Response to Different Pressure Levels Exerted Inside the EyeThis bio-compatible pressure-sensitive hydrogel coating applied to or embedded in existing ocular implants provides direct and continuous measurement of intraocular pressure. Ophthalmologists measure intraocular pressure to diagnose and treat eye diseases such as glaucoma,...
Published: 6/27/2021   |   Inventor(s): Mark Sherwood, Peng Jiang, Aaron Webel
Keywords(s): chromogenic, Coatings (nanotech) 112614, color change bio-compatible material, direct measurement, intraocular pressure measurement, Photonic crystals, pressure sensitive, sensor technology related to measurements, shape memory polymer
Category(s): Technology Classifications > Engineering > Materials, Technology Classifications > Human Health Care > Diagnostics, Technology Classifications > Medical Devices > Others
Smart Coating to Reflect Lasers and Dissipate Their Energy
Responds Automatically and Transforms to Reflect Laser IlluminationThis surface coating uses a graphene-oxide-reinforced shape memory polymer that changes color in response to laser beam. The early detection of a laser beams is desirable to prevent damage to military equipment, such as drones, that can lose functionality from laser beam illumination....
Published: 7/18/2023   |   Inventor(s): Ruochen Liu, Peng Jiang, Sin Leo, Rao Fei, Wei Zhang
Keywords(s): Coatings (nanotech) 112614, Graphene oxide, laser light, Photonic crystals, shape memory polymer, stimuli-responsive
Category(s): Technology Classifications > Engineering > Materials, Technology Classifications > Others > Cleantech
Chromogenic Sensor for Analyzing Ethanol Concentration in Gasoline
Reusable, Inexpensive, Tunable Polymer Membrane Detects Ethanol Concentration Using One Drop of Gasoline or a Similar Commercial ProductThis reusable, chromogenic ethanol sensor can detect the concentration of ethanol in a single drop of gasoline. Ethanol has lower energy content than gasoline; it also can cause corrosive damage to rubber and aluminum...
Published: 6/27/2021   |   Inventor(s): Peng Jiang, Sin Leo, Tianwei Xie
Keywords(s): chromogenic, ethanol sensor, gasoline, Photonic crystals, polymer swelling, sensor, shape memory polymer, vapor
Category(s): Technology Classifications > Engineering > Instrumentation-Sensors-Photonics, Technology Classifications > Engineering > Materials
Polymer for Optical and Biometric Identity Authentication Systems
Pressure-Responsive Polymer Memorizes the Shape of 3D Objects, Changes Color When CompressedThis pressure-responsive polymer collapses when a small force is applied to it and quickly returns to its original shape when no longer compressed. The technology is useful for identity authentication systems. The Federal Bureau of Investigation (FBI) alone maintains...
Published: 6/27/2021   |   Inventor(s): Peng Jiang, Blayne Phillips, Khalid Askar, Yin Fang
Keywords(s): Anti-glaring coatings, diffractive optics, Fingerprinting, Macroporous, Photonic crystals, shape memory polymer, Template
Category(s): Technology Classifications > Engineering > Materials
Hydrothermal Crystal Growth that Eliminates Spontaneous Emission
This hydrothermal approach to growing single crystal oxide hosts resolves the issues posed by amplified spontaneous emission (ASE). ASE is the result of unwanted internal reflection of photons at the lasing frequency within the laser crystal. The consequences of ASE include induced emission of ions from the excited state and unwanted internal lasing...
Published: 4/16/2024   |   Inventor(s): Joseph Kolis, Colin Mcmillen
Keywords(s): Photonic Crystals
Category(s): Advanced Materials
Hydrothermal Growth of Single Crystals for UV Solid State Lasers (2017-002)
This crystal growth approach utilizes a hydrothermal process to produce single crystals for use in ultraviolet (UV) solid state lasers. The global market for industrial lasers is projected to grow from $4.6 billion in 2015 to $6.3 billion in 2020, reflecting a significant and growing commercial interest. Existing crystals for UV solid state lasers consistently...
Published: 1/24/2020   |   Inventor(s): Joseph Kolis, Colin Mcmillen
Keywords(s): Optical Fibers/Materials/Other, Photonic Crystals
Category(s): Advanced Materials
Simplified Production of Single Crystals for Solid State Laser Applications (2013-060)
This approach to growing heterogeneous single crystals relies on cutting trenches or drilling circular holes in the substrate seed and allowing hydrothermal growth of the crystals to occur. The resulting crystals can be used as the active medium in solid state laser applications. The global market for solid state lasers is projected to steadily increase,...
Published: 1/5/2024   |   Inventor(s): Joseph Kolis, Colin Mcmillen
Keywords(s): Photonic Crystals
Category(s): Advanced Materials
Hydrothermal Growth of Thin Film, Co-Doped Crystals with Optimized Properties for Mass Production (2010-051)
This alternative approach for growing thin film and co-doped crystals uses hydrothermal techniques that result in optimized crystal qualities, ideal for solid state laser applications. Solid state lasers are used in a wide variety of applications, including the defense, communication, and medical fields. This broad spectrum of uses and the consumer...
Published: 7/11/2023   |   Inventor(s): Joseph Kolis, Colin Mcmillen, James Matthew Mann, John Ballato
Keywords(s): Photonic Crystals
Category(s): Advanced Materials
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