Researchers have demonstrated electrically tunable large-area metalenses controlled by artificial muscle technology. The adaptive metalens simultaneously controls for three of the major contributors to blurry images: focus, astigmatism and image shift. The device thickness is only 30 μm. ...Read full articleRelated content from Photonics MediaARTICLESLens-on-MEMS Technology Could Lead to More Compact Optical DevicesIn 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...Photonics Spectra May 2018 IssueAchromatic Metalens Operates Over a Continuous Visible BandwidthThe development of a flat lens that works within a continual bandwidth of colors that are close to that of an LED could lead to novel applications in imaging, spectroscopy and sensing. The...Photonics Spectra May 2017 IssueCapasso Group Develops Flat Lenses with Same Technology Used to Make ChipsOptics and lenses are everywhere. They’re in laptops, cameras, and telescopes. Focusing the entire visible spectrum with lenses has been a challenge because each wavelength moves through...Photonics.com 7/5/2018Graphene Photodetector Demonstrates Speed, High ResponsivityA 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...Photonics Spectra September 2018 IssuePRODUCTSZoom LensThe Z10-HD zoom lens from Resolve Optics Ltd. is designed for machine vision, broadcast TV and CCTV applications that require top-quality, high-definition images. The motorized 10×...EuroPhotonics June 2017 IssueConnector Inspection SystemThe FOCIS Flex connector inspection system from AFL uses Varioptic’s liquid lens technology. 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Resolution, however, is a more complex concept.Camera resolution depends upon the optical blur diameter and the detector size. Schade combined these to create an equivalent resolution that is a function of Fλ/d where F is the focal ratio,...Photonics HandbookAdaptive Optics: Taming Atmospheric Turbulence: For more than three centuries, the Earth’s atmosphere has frustrated astronomers. The layer of gases that we breathe also distorts the images formed by telescopes. This means that conventional telescopes of more than a few centimeters in diameter cannot reach the resolution limit set by their optics.To Isaac Newton the problem was clear, and in 1704 he realized the effects of atmospheric turbulence on image formation. 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