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Coupled Waveguide Technology Enables Multiple Imaging Advances

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Dr. Kirat Singh, APNI Technology Corp., and Dr. Alan Streater, Boulder Optical Design Inc.

This approach enables not only wide-range tunable filters, but also an image demultiplexer that forms the core of a multispectral imaging system that captures high-resolution images in real time over a broad wavelength range. Waveguide technology is the basis for a wide variety of optical devices, including filters and demultiplexers. Perhaps the simplest and most well-studied are planar waveguides, which are simply stacks of optical materials arranged in such a way that optical energy can flow along one or more of the layers. This can produce resonances in the structure that result in...Read full article

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    Published: April 2013
    Glossary
    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...
    multispectral imaging
    Multispectral imaging is a technique that involves capturing and analyzing images at multiple discrete spectral bands within the electromagnetic spectrum. Unlike hyperspectral imaging, which acquires data across a continuous range of wavelengths, multispectral imaging is characterized by capturing information at several specific, predefined bands. This allows for the extraction of spectral signatures and information from different parts of the spectrum. Key aspects of multispectral imaging...
    Alan StreaterAmericasAPNI TechnologyBoulder Optical DesigncamerasCoupled WaveguidedemultiplexerFeaturesFiltershyperspectral imagingImagingKirat SinghMicroscopymultispectral cameramultispectral imagingSensors & Detectorsspectroscopytunable filters

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