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Metamaterial Detects Circularly Polarized Light

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NASHVILLE, Tenn., Oct. 27, 2015 — A metamaterial detector for circularly polarized light (CPL) may open the door for development of small, portable sensors for applications from drug screening to communications and beyond. "Although it is largely invisible to human vision, the polarization state of light can provide a lot of valuable information," said Vanderbilt University professor Jason Valentine. "However, the traditional way of detecting it requires several optical elements that are quite bulky and difficult to miniaturize." Valentine and colleagues at Vanderbilt and Ohio University got around this limitation...Read full article

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    Published: October 2015
    Glossary
    metamaterial
    Metamaterials are artificial materials engineered to have properties not found in naturally occurring substances. These materials are designed to manipulate electromagnetic waves in ways that are not possible with conventional materials. Metamaterials typically consist of structures or elements that are smaller than the wavelength of the waves they interact with. Key characteristics of metamaterials include: Negative refraction index: One of the most notable features of certain...
    polarization
    Polarization refers to the orientation of oscillations in a transverse wave, such as light waves, radio waves, or other electromagnetic waves. In simpler terms, it describes the direction in which the electric field vector of a wave vibrates. Understanding polarization is important in various fields, including optics, telecommunications, and physics. Key points about polarization: Transverse waves: Polarization is a concept associated with transverse waves, where the oscillations occur...
    chiral
    Description of a particle that cannot be superimposed on its mirror image.
    Research & TechnologyAmericasTennesseeOhioVanderbilt UniversityOpticsmetamaterialpolarizationWei LiJason ValentineBiophotonicsdrug discoveryCommunicationsSensors & DetectorschiralCPLcircular polarization

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