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Hamamatsu Corp. - Earth Innovations LB 2/24

Lens-on-MEMS Technology Could Lead to More Compact Optical Devices

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In a collaboration between Argonne National Laboratory and Harvard University, researchers have built a metasurface-based lens on top of a MEMS platform, creating a “lens-on-MEMS” device that focuses light in the MIR spectrum. The MEMS-integrated metasurface lens combines the best features of both technologies while reducing the size of the optical system. It measures 900 m in diameter and is 10 m thick. In this hybrid device, MEMS mirrors reflect scanned light, which the metalens then focuses without the need for an additional optical component, such as a focusing lens. A...Read full article

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    Published: March 2018
    Glossary
    metalens
    A metalens, short for "metasurface lens," is a type of optical lens that uses nanostructured materials to manipulate light at a subwavelength scale. Unlike traditional lenses made of glass or other transparent materials, metalenses do not rely on the curvature of their surface to refract or focus light. Instead, they use carefully engineered patterns of nanostructures, such as nanoscale antennas or dielectric structures, to control the phase and amplitude of light across the lens's surface....
    lidar
    Lidar, short for light detection and ranging, is a remote sensing technology that uses laser light to measure distances and generate precise, three-dimensional information about the shape and characteristics of objects and surfaces. Lidar systems typically consist of a laser scanner, a GPS receiver, and an inertial measurement unit (IMU), all integrated into a single system. Here is how lidar works: Laser emission: A laser emits laser pulses, often in the form of rapid and repetitive laser...
    Research & TechnologyeducationAmericasArgonne National LaboratoryHarvard John A. Paulson SchoolImagingLight SourcesOpticslensesflat lensmetalenslidarMEMSmicoelectronicTech Pulse

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