Search Results - swastik+kar

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Physical security and authentication systems using near-invisible, forgery-resistant quantum signatures.
INV-22047 Background: In a world where forgery and counterfeit of high-value items are rampant, the need for advanced physical security measures is more critical than ever. This challenge spans across various sectors including art, antiques, medicines, aircraft parts, currency, and luxury goods. Traditional physical security tags, while helpful,...
Published: 9/10/2024   |   Inventor(s): Swastik Kar, Arun Bansil, Paul Stevenson
Keywords(s): magnetic nanoparticles, physical security, quantum imaging magnetometer, random number generator, unique identifier
Category(s): Technology Classifications > 2. Physical Science, Technology Classifications > 2. Physical Science > Security, Technology Classifications > 2. Physical Science > Advanced materials/Nanomaterials
Controlled Vapor-phase ion-gating (VPIG) and ion capping of Nanomaterials
INV-17050 Background The investigation of charged particles is a fundamental aspect of several disciplines including physics, astronomy, atmospheric science, and geophysics, and, in addition to ion gauge based pressure metrology, forms a critical component of numerous advanced applications such as mass spectroscopy, plasma acceleration, oncology,...
Published: 9/10/2024   |   Inventor(s): Swastik Kar, Ji Hao, Daniel Rubin, Yung Joon Jung
Keywords(s): Carbon nanotubes, nanoparticles
Category(s): -Materials, -Nanotechnology, Technology Classifications > 2. Physical Science > Electronics/Semiconductors
Vapour-phase gating induced single-ion detection in graphene and single-wall carbon nanotube networks
INV-17012 Background Miniaturized devices having ultrasensitive ion detection capability are useful as ion detectors in diverse applications, including detection of radioactive material or other sources of radiation, electron/ion beam calibration, monitoring of pressure or vacuum, and detection of energetic particles from outer space. Carbon nanotubes...
Published: 9/10/2024   |   Inventor(s): Swastik Kar, Ji Hao, Yung Joon Jung
Keywords(s):  
Category(s): -Materials, -Sensors tech
Tunable and Reconfigurable Atomically Thin Heterostructures
3 layers can form rotationally-aligned stacks with long-range crystallographic order. Our theory predicts and experiments reveal striking electronic and optical changes when Bi2Se3 is stacked layer-by-layer on monolayer MoS2, including the formation of an indirect bandgap and 100% photoluminescence (PL) suppression, tunable transmittance-edge (1.1 eV®0.75...
Published: 9/10/2024   |   Inventor(s): Swastik Kar, Fangze Liu, Christopher Lane, Daniel Rubin, Arun Bansil, Anthony Vargas, Zachariah Hennighausen
Keywords(s): Data Storage, Devices, Electronics, Energy Technology, Materials, Memory, Optoelectronics
Category(s): -Chemistry, -Materials, -Optics, -Nanotechnology, -Sensors tech, Technology Classifications > 2. Physical Science > Electronics/Semiconductors
A-Eye: A device for accurately identifying color
INV-20032 Background Cone cells are natural photoreceptor cells in the retinas of vertebrate eyes. They respond differently to light of different wavelengths and thus responsible for color vision, a sensation in our brain in response to the incidence of mixed wavelength values (i.e. non-monochromatic light) incident on the cone cells. Similarly,...
Published: 9/10/2024   |   Inventor(s): Davoud Hejazi, Swastik Kar, Sarah Ostadabbas
Keywords(s): 2D materials, Artificial eye, Artificial intelligence, color sensing, Machine Learning, spectral estimation, Wavelength estimation
Category(s): -Sensors tech
A method to directly synthesize 2D nanomaterials by heating of bulk sources
INV-20015 Background There exist a multitude of methods for fabricating monolayer nanomaterials, such as chemical methods (including chemical vapor deposition (CVD), vacuum deposition and vaporization, gas condensation, sol‑gel fabrication, electrodeposition), and mechanical methods (including liquid-phase exfoliation (LPE), Scotch‑tape). The...
Published: 9/10/2024   |   Inventor(s): Davoud Hejazi, Swastik Kar, Renda Tan
Keywords(s): 2D materials, nanomaterial synthesis
Category(s): -Materials