Material Coefficient of Expansion (×10–6 per °C) Density (lbs/cubic in.) Aluminum 23.8 0.10 Brass (cast) 18.8 0.30 Carbon (diamond) 1.2 0.25 Carbon (graphite) 7.9 — Copper 16.2 0.32 Germanium 5.9 0.20 Glass (optical) maximum ...Read full articleRelated content from Photonics MediaARTICLESTechnique Could Offer Gentler Approach to Making Hybrid Photovoltaic MaterialsA thin-film deposition method for creating hybrid thin-film materials, applied to the fabrication of perovskite cells, could lead to a means to develop next-gen solar materials. Researchers at...Photonics.com 1/5/2018Optically Heated Nanotweezers Manipulate Materials at NanoscaleOpto-thermoelectric nanotweezers (OTENTs) have been developed that use light at the nanoscale to manipulate metal nanoparticles in a wide range of materials, sizes, and shapes, with single-particle...Photonics.com 4/9/2018Laser Pulses, Class of New Materials Show Potential for Energy EfficiencyAn experiment that involves the cutting edge of condensed matter physics and materials science could make superconductivity at room temperature and more efficient energy usage a reality. Thanks...Photonics Spectra August 2017 IssueTransparent Materials Absorb LightResearchers have demonstrated an optical paradox — they have made a completely transparent material appear perfectly light-absorbing. 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The systematic...EuroPhotonics December 2017 IssuePhotoswitch Chemistry Creates 3D Shapes From LightA novel technology uses a special class of photoactivatable molecules and digital light processing (DLP) to construct light shapes into animated structures that have volume and are viewable from 360...Photonics Spectra January 2018 IssueDiscovery Could Lead to Materials with Brighter, Faster Light EmissionScientists have discovered why a certain class of nanocrystals — caesium lead halide quantum dots — shines in such bright colors. They have also confirmed that these nanocrystals emit...Photonics.com 1/16/2018Penn State’s Werner Awarded $8M to Advance Engineered Metamaterials ResearchDoug Werner, John L. and Genevieve H. McCain Chair Professor of Electrical Engineering at Penn State, has been awarded nearly $8 million to continue his pioneering work in metamaterials development...Photonics.com 6/6/2017PRODUCTS3D-Printing MaterialsThe Proofgrade line of materials from Glowforge are sourced, encoded and lab-tested for 3D printing. The materials are specially formulated for the Glowforge 3D laser printer and work well with...Industrial Photonics April 2018 IssueThick-Film Resist MaterialsThe SUEX and ADEX dry, thick-film resist materials from DJ MicroLaminates Inc. feature high resolution and high aspect ratios. 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Quinsigamond Community College and WPI received a $4M grant...Photonics.com 2/21/2018Merging Industry and Education Through Photonics - LIGHT MATTERS 09.2017Tune into this month’s edition of Light Matters for the complete list of Photonics Media’s Industry Beacon award winners. We’ll also introduce you to an Industry Beacon in the Educator category, and...Photonics.com 9/28/2017Light 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 3/29/2018WHITEPAPERSUse Injection Molded Plastic Optics to Reduce System CostPlastic optics in complex optical systems offer many advantages over glass. 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They...Photonics.com 4/27/2017PHOTONICS DICTIONARY TERMSoptical materialsMaterials that, by virtue of their optical characteristics (i.e. refractive index, dispersion, etc.), are used in optical elements. See crystal; glass; plastic lens.EDU.photonics.com 3/5/2018high-density storageExtensive data storage in the form of bits, with the use of high-resolution photographic materials and optics, and generally a laser.EDU.photonics.com 9/8/2009flash photographic density filterA filter, partially opaque to near-ultraviolet, visible and infrared radiation, that may be made by exposing and processing photographic film. Such materials are almost equally opaque to radiation of...EDU.photonics.com 9/8/2009flux densityFlux per unit area measured normal to the direction of propagation of the flux.EDU.photonics.com 9/8/2009PHOTONICS HANDBOOK ARTICLESTransmission Ranges for Optical Materials: Chart showing Transmission Ranges for Optical Materials.Photonics HandbookDensityConversion Table – Density to Percent Transmission Density – % Transmission (Opacity x % Transmission = 100) Density Opacity %T 0 1.0 100 0.1 ...Photonics HandbookCommon Infrared Optical Materials and Coatings: A Guide to Properties, Performance and Applications: The purpose of this guide is to identify the most common infrared-transmitting materials, pointing out key properties and their typical manufacturing and optical coating options. The information provided within this article is for reference purposes only.The optical materials selected for an optical system depend upon the application, the required system performance and the environment in which the system is to perform; thus the materials’...Photonics HandbookOptical Coating: Materials and Deposition Technology: Surface coatings used to control optical, mechanical and electrical properties are deposited as nano- and micrometer thicknesses of special materials.Optical coatings are deposited as thin-film multilayers of a variety of materials using specific deposition techniques. Coatings are applied to optical components that are intended for use at...Photonics HandbookPHOTONICS BUYERS' GUIDE CATEGORIESOptical MaterialsOptical materials are materials that, by virtue of their optical characteristics, are used in optical elements.Nonlinear Optical MaterialsUltraviolet MaterialsSemiconductor MaterialsCOMPANIESNewport Thin Film Laboratory Inc.Newport Thin Film Laboratory, Inc. (NTFL) is a leading manufacturer of high performance thin film coatings. For more than four decades, custom thin film coatings produced by NTFL have contributed to...Photonics Buyers' GuideOmega Optical Inc.Omega Optical has been bringing you the light you need since 1969. Omega specializes in thin-film interference filters in the 190 nm - 20 µm wavelength range. The layers are...Photonics Buyers' GuideReynard CorporationFor over 30 years, Reynard Corporation has been a premier supplier of custom optics and thin-film coatings to a global customer base. Reynard focuses on manufacturing the highest quality products...Photonics Buyers' GuideZeus Industrial ProductsZeus delivers precision polymer solutions that transform businesses, markets and lives. We have dedicated 50 years to building partnerships, products and services. Headquartered in Orangeburg, South...Photonics Buyers' Guide