A metamaterial has been designed with a switchable metasurface that allows it to either block or transmit light waves in response to light pulses. Developed by researchers at the University of Southampton, the optically switchable metamaterial uses the phase-change medium germanium antimony telluride (GST) to change properties, a capability that may be useful for a range of optical devices. Switchable metamaterials have previously included a metal component that is structurally engineered to provide the desired optical properties, as well as a phase change component that can be used to...Read full articleRelated content from Photonics MediaARTICLESMetasurface-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 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 IssueFabrication Technique Brings Metasurface Production CloserResearchers from Chalmers University of Technology have developed a new method of creating metasurfaces, which could bring mass production of ultrathin lenses closer to reality. Metasurfaces...Photonics Spectra August 2020 IssueDiamond 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 IssuePRODUCTSFast-Axis Collimator LensesFast-axis collimator (FAC) lenses from LIMO GmbH are designed for all types of diode-pumped laser sources. The devices feature acylindrical surfaces and are manufactured from high-grade glass....BioPhotonics May/Jun 2019 IssueReflective AxiconsReflective axicons from Cailabs SAS are optics that improve Bessel beam glass-cutting processes. An axicon is a specialized type of lens with a conical surface to transform a laser beam into a...Photonics.com 7/19/2019TFL-Mount LensesCompact TFL-Mount Lenses from Schneider-Kreuznach feature standardized M35×0.75 thread and 17.52 back flange distances, ideal for large-format compact lenses. To serve the demand of...Photonics.com 8/4/2020Cinematography LensesCooke Optics Ltd. has released new focal lengths in its S7/i and Anamorphic/i Full Frame Plus range of lenses. 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Schade combined these to create an equivalent resolution that is a function of Fλ/d where F is the focal ratio,...Photonics HandbookOptical System Design: Keeping the Coatings in Mind: The design of optical systems should balance the coating constraints with the optical and mechanical requirements. Understanding the key properties and limitations of optical coatings enables the system designer to improve the performance of the optical system.An optical coating engineer is frequently confronted with a difficult specification for a coating. Often the difficulty in the specification results from the particular form of the optical system. If...Photonics HandbookDigital 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 HandbookWHITEPAPERSCamera-based Observation in Laser Material ProcessingCamera-based imaging enables real time observation and feedback during laser processing. This paper gives you an overview about several methods of camera-based observation to find the best solution...Photonics.com 7/1/2020Replacing 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 5/24/2019Radiation Resistant LensesDrawing upon approaching 30 years experience — Resolve Optics has built a strong reputation for specialist lens design and manufacture of smaller production quantities of radiation resistant...Photonics.com 5/24/2019Light Changes Matter – with Optics, Lasers and SensorsThe Light & Optics division is a global OEM supplier of solutions and products based on photonics technologies. Jenoptik provides a broad portfolio of technologies combined with deep experience of...Photonics.com 9/11/2020WEBINARSDevelopments in Optics and Optical ComponentsFree Webinar Additional Questions & Answers from the Webinar below: Speakers: Dr. Robert R. McLeod Associate Professor and Graduate Director Electrical, Computer and Energy...Photonics.com 5/29/2013Flat Optics Based on Metasurfaces: Molding Wavefronts and Surface WavesMetasurfaces based on subwavelength patterning have major potential for realizing arbitrary control of the wavefront of diffracted light by achieving local control of the phase amplitude and...Photonics.com 2/26/2015How 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 5/9/2018Photonics for OphthalmologyPhotonics Media invites you to join us for our upcoming FREE digital conference, "Photonics for Ophthalmology." The event will feature several 15-minute online presentations on the use of light-based...Photonics.com 6/9/2016PHOTONICS DICTIONARY TERMSmetamaterialA material engineered from artificial matter not found in nature. The artificial makeup and design of metamaterials give them intrinsic properties not common to conventional materials that are...EDU.photonics.com 2/15/2013micro-opticsTiny (less than 2 mm in diameter) lenses, beamsplitters and other optical components used, for example, in endoscopes or microscopes or to focus light from semiconductor lasers and optical fibers.EDU.photonics.com 3/24/2016spectrographAn optical instrument for forming the spectrum of a light source and recording it on a film. The dispersing medium may be a prism or a diffraction grating. A concave grating requires no other means...EDU.photonics.com 9/8/2009diffractive lensAny optical device that utilizes diffraction in an image-forming capability. Familiar diffractive lenses are zone plates, holographic lenses, kinoform lenses and binary optics.EDU.photonics.com 9/8/2009MEDIACapasso Group Embeds, Projects Independent Images on MetasurfaceMembers of the Capasso Group at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have successfully encoded multiple holographic images in a metasurface. The separate...Photonics.com 8/9/2018Penn's Agarwal Group Focuses on Light-Matter Interactions for Optoelectronic DevicesThe Agarwal Group at the University of Pennsylvania's Department of Materials Science and Engineering focuses on understanding how light interacts with small scale nanostructures. They also work to...Photonics.com 10/1/2018Laser Munich & Portable Quantum Tech - LIGHT MATTERS 05.15.2013-Laser Munich -Portable Quantum Tech -Metamaterial bandwidth This week on Light Matters: a moon-shaped metamaterial broadens bandwidths, Laura Marshall reports from Laser World of Photonics in...Photonics.com 5/15/2013Photonics 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 2/21/2018PHOTONICS BUYERS' GUIDE CATEGORIESLaser Diode Collimating LensesLaser Scanning LensesLaser OpticsMicroscope 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