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Raman Spectroscopy Peers Through Packaging Dec 29, 2017 — Raman spectroscopy is a well-established molecular spectroscopic technique for noninvasive and nondestructive chemical analysis. It is used to identify mostly organic materials, such as carbon nanomaterials, controlled substances and hazardous chemicals, pharmaceutical raw materials, gemstones and minerals, pigments and paintings in art works<sup<>1,2,3, and diseased tissue4. The instrumentation can be portable — even handheld — and equipped with software that, together
Photonics Spectra, Feb 2018
Onboard Lidar Detects Turbulence, Volcanic Ash Near and Far Dec 22, 2017 — The accurate measurement of relative air speed, temperature and pressure is essential for the flight control system to operate safely and economically within the operational envelope and set flight corridor. Air speed is typically measured using...
Photonics Spectra, Feb 2018
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New Frontier for Quantum Sensing Dec 21, 2017 — Quantum physics is a peculiar field. In the subatomic domain, the usual physical laws no longer apply. Instead, nonintuitive behaviors reign and new laws govern. A case in point is the Heisenberg uncertainty principle, which tells us that it is not...
Photonics Spectra, Feb 2018
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Additive Manufacturing Ups Its Game Dec 14, 2017 — Additive manufacturing builds up parts by binding plastics and other materials together, with lasers, LEDs, other light sources, heaters or electron beams supplying the necessary energy. The resulting parts are light yet still strong. What’s...
Industrial Photonics, Jan 2018
Thermal Imaging Spurs New Applications Dec 13, 2017 — Long-wave infrared (LWIR) imaging, also known as thermal imaging, has played a critical role in the defense and security market for decades because of its ability to detect warm (or live) objects independent of ambient lighting. Recently, advances...
Industrial Photonics, Jan 2018
Mastering Machine Vision Dec 12, 2017 — As competition increases and customer requirements become more stringent, machine vision technology is becoming imperative for companies in manufacturing. Vision systems provide an automated and repeatable way of performing the quality control and...
Industrial Photonics, Jan 2018
Image-Based Barcode Reading Fulfills its Promise Dec 12, 2017 — Traditionally, 1D barcodes have been read by laser scanners that project a beam across the barcode and use reflected light to generate an electrical signal for decoding. Although these scanners are mature and effective, a number of inherent...
Industrial Photonics, Jan 2018
Endospectroscopic Imaging Takes Optical Biopsies to the Next Level Dec 8, 2017 — Spectroscopy has the potential to provide pathologists with fast in vivo tissue characterization to determine tumor type and grade and to delineate tumor margins. However, extending the applicability of microspectroscopy to in vivo imaging requires...
BioPhotonics, Jan 2018
MUSE: Simple Slide-Free Microscopy Dec 8, 2017 — Even in this era of molecular medicine, conventional light microscopy remains the principal contributor to cancer diagnostics and also serves to guide surgical procedures, monitor disease activity and follow therapy responses over time. Although...
BioPhotonics, Jan 2018
Silicone Immersion Objectives Boost 3D Live-Cell Imaging Dec 6, 2017 — Refractive index mismatch and resulting spherical aberration has historically plagued researchers interested in long-term, live-cell imaging at high resolution. The use of silicone oil objectives helps mitigate this mismatch, as the refractive index...
BioPhotonics, Jan 2018
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Terahertz Imaging Takes Aim at Dermatology and Dentistry Dec 4, 2017 — The first terahertz image was taken at the AT&T Bell Laboratories more than 20 years ago in 1995. The astonishingly clear image of the inside of a packaged semiconductor integrated circuit brought immense attention to terahertz imaging for...
BioPhotonics, Jan 2018
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Reflections on a Storied Career Nov 28, 2017 — For 18 years, Eugene Arthurs, Ph.D., has served at the helm of SPIE, the international society for optics and photonics. During that time, SPIE saw its membership ranks expand, launched seven new journals, marked its 50th anniversary and, in 2008,...
Photonics Spectra, Jan 2018
Evolution of the Supercontinuum Light Source Nov 28, 2017 — For many applications, coherent light at a single frequency is more than adequate. But having a light source that combines the properties of a laser with the broad bandwidth of an incandescent bulb and a short pulse duration opens up a new realm of...
Photonics Spectra, Jan 2018
Optics Transforming AR, Wearables and Beyond Nov 21, 2017 — The sea change of optics usually moves gradually, but today we are on the precipice of rapid change. As in the past, optics continues its coupling with other nonoptical technologies — fabless semiconductor manufacturing, microelectronics,...
Photonics Spectra, Jan 2018
Breakthrough in Fabricating Active-Matrix GaN Microdisplays Nov 20, 2017 — The growing interest in wearable devices has highlighted the need for high-performance microdisplays. Such displays are based on technologies that include reflective or transmissive liquid crystal displays (LCDs), organic LEDs (OLEDs) or MEMS-based...
Photonics Spectra, Jan 2018
Packing More Performance Into Smaller Spectrometers Nov 9, 2017 — From food safety and manufacturing efficiency, to environmental testing and medical diagnosis, optical spectroscopy is already an indispensable tool across several industries. Today, thanks to miniaturization of instruments and sophisticated...
Photonics Spectra, Jan 2018
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New Laser Technologies Displacing Old Nov 8, 2017 — For some CO2 laser applications, the end is at hand, with fiber lasers having almost totally replaced the older technology. Another shift currently brewing is due to the arrival of high-power diode lasers, which are impacting materials processing...
Photonics Spectra, Jan 2018
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3D Imaging Aids Life Sciences Nov 2, 2017 — While human bodies and single cells are three-dimensional, imaging of them often was not. Data might be captured in two-dimensional slices during a computed tomography, magnetic resonance, ultrasound or even microscope study. But the interpretation...
BioPhotonics, Dec 2017
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Photonics West Brings Together Industry’s Best, Brightest Nov 1, 2017 — With three conferences — BiOS, LASE and OPTO — and two exhibitions, SPIE Photonics West is the world’s largest annual event for the photonics, laser and biomedical optics industries. And it’s just around the corner —...
Photonics Spectra, Dec 2017
Display Technologies Shape the Immersive Experience Oct 31, 2017 — Almost four years ago, Facebook’s Mark Zuckerberg plunked down a reported $3 billion for technolgy company Oculus VR and said, “We believe this kind of immersive, augmented reality [AR] will become a part of daily life for billions of...
Photonics Spectra, Dec 2017
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Optical Techniques Tackle Nanoscale Measurements Oct 31, 2017 — Materials at the nanoscale can behave in surprising ways. While the properties of macro materials can often be predicted, the behaviors of a material invisible to the naked eye can differ greatly. Providing insight into this nanospace is essential...
Photonics Spectra, Dec 2017
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Pushing the Limits of Interferometric Testing Oct 30, 2017 — Laser interferometers have come a long way in the last 40 years. At 76 million independent surface image points per second in phase-shifting mode, the latest in laser interferometer instrumentation delivers extreme levels of surface...
Photonics Spectra, Dec 2017
Fabricating Precise Polymer Optics Oct 30, 2017 — Polymer optics are one of the cornerstones of photonics, driving the innovation necessary to meet the requirements for ever-smaller installation spaces and significant weight savings, all while achieving a higher image quality. The miniaturization...
Photonics Spectra, Dec 2017
Competition, Collaboration Fuel U.S. Photonics Industry Oct 26, 2017 — Photonics production in the U.S is a multibillion dollar industry. Programs such as the American Institute for Manufacturing Integrated Photonics (AIM Photonics), as well as developments in technology are helping to fuel the market. Industrial...
EuroPhotonics, Dec 2017
Advances in Power and Tunability for GaSb-VECSELs Oct 24, 2017 — Recently, there has been growing demand for light sources in the near- to mid-infrared range with high output power in combination with good beam quality. This demand is driven by applications such as optical pumping Holmium:YAG lasers or optical...
Photonics Spectra, Dec 2017
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