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. To create the tunable metalens, researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) first needed to scale up existing metalens structures. Current metalenses focus light through a dense pattern of nanostructures, each smaller than a wavelength. The...Read full articleRelated content from Photonics MediaARTICLESMetalens Design Enables Reconfigurable ImagingA Northwestern University research team has developed an imaging platform based on fully reconfigurable metalenses. The lenses focus light by exciting surface lattice resonances that are tuned by...Photonics.com 3/29/2019Diamond Metalens Could Improve Quantum Device Performance and ScalabilityAt the chemical level, diamonds are no more than carbon atoms aligned in a 3D crystal lattice. Even a diamond that looks flawless contains defects that can absorb or emit light. Small defects in...Photonics Spectra August 2019 IssueMetasurfaces Enable Low-Loss Integrated Photonics PlatformA University of Delaware (UD) research team has designed an integrated photonics platform using metasurfaces. To limit the loss of data, the team fabricated a high-contrast transmitarray (HCTA)-based...Photonics Spectra January 2020 IssueMetasurface-Based Contact Lenses Could Correct Red-Green Color BlindnessA custom contact lens could offer a convenient way to help people who experience color blindness. Researchers at Tel Aviv University (TAU) embedded large-scale, plasmonic metasurfaces into...Photonics Spectra May 2020 IssuePRODUCTSOptical ComparatorThe HB400 Benchtop Optical Comparator from the L.S. Starrett Co. features expanded X-axis travel for the measurement of larger parts on its workstage. Available with optical edge detection, the...Photonics Spectra June 2020 IssueTelephoto LensThe 100-400 mm F5-6.3 DG DN OS Contemporary Telephoto Lens from Sigma Corp. is designed exclusively for full-frame mirrorless cameras. Its optical formula ensures edge-to-edge sharpness and...Photonics.com 7/28/2020MIPI CameraThe e-CAM50_CUNX from e-con Systems Inc. is a 5-MP MIPI CSI-2 fixed-focus color camera for the NVIDIA® Jetson Xavier NX™ Developer Kit. The e-CAM50_CUNX is based on the 1/ 2.5-in....Photonics.com 8/21/2020Virtual Reality CameraThe 360 Action Camera from 360Rize provides affordable access to virtual reality. The 360° system allows 5.7K-resolution video recording and 24-MP photos. Supports 90 min. of recording time...Photonics.com 11/20/2019PHOTONICS HANDBOOK ARTICLESDigital Still Cameras: The Changing Face of Imaging: The digital camera reflects a sea change in the compact camera market. While the 20th was the century of film cameras, the 21st belongs to the digital camera.The digital camera represents an integration of optics, mechanics and electronics consisting of three layers (Figures 1a, b and c). The top and the middle layers are printed circuit boards (PCBs),...Photonics HandbookAspheric Lenses: Design Considerations: This first of two articles will cover design and manufacturing options for aspheres; the second will include more detail on manufacturing and testing processes. These articles will provide the tools optics designers need to tailor their designs to the appropriate manufacturing process and to optimize the cost of component fabrication.Aspheric surfaces are powerful tools that combine the optical corrections of multiple lenses into a single element (Figure 1) and affect performance in ways that spherical optics cannot. For example,...Photonics HandbookCamera Resolution: Combining Detector and Optics Performance: Most image-quality discussions center on resolution, which is thought to uniquely determine system performance. 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. Just as heat waves shimmering above a hot patch of ground can distort our...Photonics HandbookWHITEPAPERSAdvances in Precision Motion Control and MechanismsPart I: Improving Stage Accuracy with ACS Dynamic Error Compensation Even the best precision motion systems exhibit some amount of position error. These errors can be measured using external...Photonics.com 9/5/2019Is a DIY Microscope for you?Recently, it has become very popular for researchers to explore building their own microscopes. Budgetary and technical specifications are among the motivations for this approach. However, there is a...Photonics.com 3/5/2020Nanopositioning and Precision Motion Control: A Step AheadNanopositioning mechanisms are key to progress in fields as diverse as materials science, genomics, photonics, defense, biophysics, and semiconductors. A nanopositioning mechanism is defined as a...Photonics.com 5/31/2019Replacing Hard to Source and Obsolete Optical ComponentsPeriodically organisations are faced with replacing hard to source or obsolete optical components within their camera, sensor, or instrument systems. It is at this critical point that you have to...Photonics.com 5/24/2019WEBINARSHow the Metalens Will Transform Lens Technology and Everyday DevicesMetalenses — ultrathin planar lenses — represent a revolutionary step in lens design and fabrication, a technology that has remained essentially unchanged for centuries. Metalenses have...Photonics.com 5/9/2018Biophotonic Imaging for Medicine: A Digital ConferenceResearchers from around the world presented their latest work at “Biophotonic Imaging for Medicine: A Digital Conference.” Presentations focused on a range of light-based imaging and...Photonics.com 6/11/2015Advances in Rapid 3D Imaging of Large Tissue SamplesThis webinar will discuss rapid 3D, multiplexed imaging of large tissue samples, based on recent advances in light-sheet fluorescence microscopy, multiplexed molecular labeling, and optical tissue...Photonics.com 1/24/2019Digital Holographic Microscopy for Cytometry and HistologyIn this webinar, Björn Kemper, Ph.D., will introduce quantitative phase imaging (QPI) and digital holographic microscopy (DHM), providing examples and an overview of representative applications...Photonics.com 9/24/2020PHOTONICS DICTIONARY TERMSthermoplastic elastomer (TPE)A material used in the jacket of fiber optic cables.EDU.photonics.com 9/8/2009elastomerAny material of a macromolecular nature that can stretch at room temperature to more than twice its length and return to approximately its original shape when stress is released.EDU.photonics.com 9/8/2009StereomicroscopyThe use of a specialized optical microscope designed to provide a more three-dimensional view of a sample. Stereomicroscopy usually uses reflected light and provides enhanced depth perception via the...EDU.photonics.com 3/5/2018point-probing scanning optical microscopeEDU.photonics.com 9/8/2009MEDIACapasso Group Revolutionizes Flat LensesResearchers at the Harvard John A. Paulson School of Engineering and Applied Sciences have developed a single flat lens that can focus the entire visible spectrum of light in the same spot and in...Photonics.com 7/5/2018Photonics on the Showroom Floor and in the Lab - LIGHT MATTERS 02.2018On this month's episode of Light Matters, we take you on a brief tour of the Higgins Laboratories at Worcester Polytechnic Institute (WPI). Quinsigamond Community College and WPI received a $4M grant...Photonics.com 2/21/2018Light Matters Extra: Weird and Strange: Quantum Photonics - 03.2018In this month's Light Matters Extra, we take you to the Quantum Photonics Laboratory at MIT run by Dr. Dirk Englund. Dr. Englund's group, the Quantum Photonics Group, is made up of postdocs and...Photonics.com 3/29/2018Fundamentally Different Photonics - LIGHT MATTERS 03.2018On this month's episode of Light Matters, we take you to the South by Southwest (SXSW) Trade Show in Austin, Texas, as new photonics innovations hit the show floor of the Austin Convention Center....Photonics.com 3/29/2018PHOTONICS BUYERS' GUIDE CATEGORIESSolar CoatingsNear-Field Scanning Optical MicroscopesA near-field scanning optical microscope is a scanning probe microscope that analyzes the surface of a specimen by recording the intensity of light as it is focused through a pipette and raster...MicropositionersTelevision LensesCOMPANIESA.R.W. Optical CorporationARW Optical is your reliable manufacturer of quality optics and coatings. Beamsplitters • Prototyping through volume-production quantities • High-performance and durable optical...Photonics Buyers' GuideFOCtek Photonics Inc.FOCtek provides customers with all types of custom manufactured lenses, Precision Optical Components, Polarizing Optics, Prisms, Filters, Coatings, Optical Systems, Crystals, Nonlinear Crystals,...Photonics Buyers' GuideLaCroix Precision OpticsOptics that Defend, Build, Cure and Discover The LaCroix name is synonymous with quality precision optics. Since 1947, three generations of family leadership have placed LaCroix Precision Optics...Photonics Buyers' GuideMeller Optics Inc.Meller Optics has been providing high quality optics to defense, medical, laser and industrial markets for over 50 years. Specializing in grinding and polishing of hard, durable materials such as...Photonics Buyers' Guide