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Graphene Photodetector Demonstrates Speed, High Responsivity

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A new photodetector, made with graphene, can operate across a broader range of wavelengths and process images faster than existing photodetectors. The detector is also more sensitive to low levels of light than current technology. The photodetector operates across a broad range of light, processes images more quickly, and is more sensitive to low levels of light than current technology. Courtesy of UCLA Engineering. Researchers from University of California, Los Angeles (UCLA) fabricated the photodetector using photoconductive nanostructures based on gold-patched graphene...Read full article

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    Published: July 2018
    Glossary
    nanopositioning
    Nanopositioning refers to the precise and controlled movement or manipulation of objects or components at the nanometer scale. This technology enables the positioning of objects with extremely high accuracy and resolution, typically in the range of nanometers or even sub-nanometer levels. Nanopositioning systems are employed in various scientific, industrial, and research applications where ultra-precise positioning is required. Key features and aspects of nanopositioning include: Small...
    hyperspectral imaging
    Hyperspectral imaging is an advanced imaging technique that captures and processes information from across the electromagnetic spectrum. Unlike traditional imaging systems that record only a few spectral bands (such as red, green, and blue in visible light), hyperspectral imaging collects data in numerous contiguous bands, covering a wide range of wavelengths. This extended spectral coverage enables detailed analysis and characterization of materials based on their spectral signatures. Key...
    photodetector
    A photodetector, also known as a photosensor or photodiode, is a device that detects and converts light into an electrical signal. Photodetectors are widely used in various applications, ranging from simple light sensing to more complex tasks such as imaging and communication. Key features and principles of photodetectors include: Light sensing: The primary function of a photodetector is to sense or detect light. When photons (particles of light) strike the active area of the photodetector,...
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    Research & TechnologyAmericaseducationImagingLight SourcesNanopositioningOpticsSensors & Detectorshyperspectral imagingthermal sensingmedical imagingphotodetectorgraphenegraphene photodetectorMaterialsnanoenvironmentUCLA Samueli School of EngineeringTech Pulse

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