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IR Sensors Make Smart Devices Smarter
Dramatic advancements in smart technology and the Internet of Things (IoT) have occurred over the past decade, with powerful implications for industry and our everyday lives, enabled in no small measure by the development of increasingly sophisticated sensors. Today, electronic sensors and detectors allow for unprecedented automation capabilities in automobiles, manufacturing equipment, consumer products, and homes. The proliferation of mobile devices and their associated computing power,...
Photonics Spectra, June 2018
Terahertz 3D Spectroscopy Boosts Imaging Applications
Terahertz imaging is a promising technique for noncontact, noninvasive, nonionizing 3D spectroscopy. Terahertz rays, located between microwave and IR on the electromagnetic spectrum from approximately 0.06 THz (60 GHz) to 10 THz, are capable of...
Photonics.com, June 2018
Augmented Reality Takes Shape
The world of virtual reality (VR) has made a splash in the consumer market in recent years with its fully occluded VR headsets, such as the Oculus Rift and HTC Vive, that transport gamers to a virtual world. But an even bigger trend with more...
Photonics.com, June 2018
Extreme UV Sources Fill the Gap
The electromagnetic spectrum has several regions where emitters, detectors, or both are not readily available. Terahertz and the far-infrared are prime examples. Even within the visible spectrum, much has been said about the “green gap”...
Photonics Spectra, May 2018
Adaptive Optics Look Farther Than Ever Before
Decades after the Cold War ended, technology developed for the U.S. Strategic Defense Initiative (“Star Wars”) missile defense program continues to be of use, emerging in fields ranging from space communication and exploration to brain...
Photonics Spectra, May 2018
Member Exclusive
Thinnest of Materials Loom Large
Only a few atomic layers thick, 2D materials such as graphene, the compound semiconductor germanium selenium, the transition metal dichalcogenide molybdenum ditelluride, and others could provide new photonic capabilities — better multispectral...
Photonics Spectra, May 2018
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Quantum Dots: Taking the Display World by Storm
Quantum dots. QDs. QLED. The presence of quantum dots (QDs) in consumer displays has been on the rise since Sony introduced QD Vision’s edge optic in its 2013 Triluminos TV series. Samsung introduced its super ultrahigh-definition QLED TV two...
Photonics Spectra, May 2018
Optical Mapping Delivers Realistic, 3D Images for AR
The global market for virtual reality (VR), augmented reality (AR), and mixed reality (MR) continues to expand, with a variety of these technologies sprouting in the past five years, cultivated by both tech giants such as Microsoft and Google and...
Photonics Spectra, May 2018
All-Optical Logic Gates Show Promise for Optical Computing
When it comes to computing, one of the primary bottlenecks in increasing data transfer rates is the conversion time required from optics to electronics when the signal reaches a semiconductor microprocessor. One approach to addressing this problem...
Photonics Spectra, April 2018
Laser-Induced Breakdown Spectroscopy Beyond the Lab
Laser-induced breakdown spectroscopy (LIBS) techniques have been studied and applied for more than half a century. The first plasma induced by a laser was observed shortly after the invention of the laser itself, but only recently has LIBS moved...
Photonics Spectra, April 2018
Maximizing Optical Alignment
Advances in silicon photonics and micro-optic technologies are driving automated alignment tolerances down to nanometer levels. Misalignment between optical components in today’s photonic devices directly impacts the quality of light...
Photonics Spectra, April 2018
Member Exclusive
Lasers Adapt to Changing Threat Landscape
The danger facing today’s global defense force is shifting. With the rise in unmanned aerial vehicles (UAVs) and enemies gaining greater ballistic missile expertise, ultraprecise and quick-response laser systems are attracting more interest...
Photonics Spectra, April 2018
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Germanium Alternative Gaining Momentum for IR Optics
When it comes to designing IR imaging systems, manufacturers have traditionally worked with crystalline materials such as germanium. To make compact, lightweight systems, fabricators are driven to use aspheric surfaces, which has meant diamond...
Photonics Spectra, April 2018
Getting the Total Picture, Remotely
Thanks to advances in photonics and image processing, scientists, farmers and others can get a better picture of what’s going on across a landscape. With cameras operating over large swaths of the spectrum and lidar capturing fine structural...
Photonics Spectra, April 2018
Innovation Shines at 2018 SPIE Prism awards
The 2018 Prism Awards for Photonics Innovation brought out the best of the best. Many companies in Europe and others from around the world were among 30 finalists for the awards that recognize the industry’s top innovations and groundbreaking...
Photonics.com, March 2018
Innovations in Lens Measurement
Automobile cameras, telescopes, head-mounted displays, laser-focusing heads and other modern photonic devices incorporate high-grade optics that can perform under extreme environmental conditions. The demand for such lenses means they must be...
Photonics Spectra, March 2018
Member Exclusive
Getting More Out of Telecom Fiber
The rising amount of data generated by people and machines around the world travels largely by fiber, with some of it moving thousands of miles in a hop. For some long jumps, new ultralow-loss, large effective area fiber is going into the ground and...
Photonics Spectra, March 2018
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Nano-FTIR Spectroscopy Reveals Material’s True Nature
Fourier transform infrared spectroscopy (FTIR) from about 2 to 20 µm is a common analytical tool for characterizing material and useful in a range of applications in analytical chemistry, biology, geology and medicine. Besides chemical...
Photonics Spectra, March 2018
Sensor Balancing Act for UAVs
Commercial applications such as crop disease detection, environmental monitoring, geological exploration and infrastructure inspection are prime examples of how the confluence of drones and sensing instruments is evolving globally. On-demand data...
Photonics Spectra, March 2018
Ytterbium Fiber Amplifiers Set the Mark for Speed and Power
Ytterbium fiber laser amplifiers encompass one of the most dynamic areas in femtosecond lasers. Recent advances in power and speed are opening doors in scientific research and materials processing, impacting diverse fields spanning multiphoton...
Photonics Spectra, March 2018
Continuously Variable Bandpass Filters Aid Optics and HSI
Hyperspectral imaging (HSI) has been used for a couple of decades in applications such as satellite imaging, air reconnaissance and other markets that are not price sensitive. Still, there is no clear definition of the term. Sometimes techniques...
Photonics.com, March 2018
Imaging UAVs Move to the Forefront of Surveillance and Reconnaissance
With the U.S. and the U.K. deploying more troops overseas, and given the global increase in the frequency and lethality of terrorist attacks, it’s little surprise that versatile unmanned aerial vehicles (UAVs) are playing a bigger role than...
Photonics.com, March 2018
Silicon-on-Insulator Substrates: The Basis of Silicon Photonics
The demand for greater internet connectivity is driven by mobile device applications, new video-on-demand services and connected industrial services. And it’s growing at an average rate of 24 percent per year (Figure 1). All of this internet...
Photonics.com, March 2018
Measuring Diffraction Grating Efficiency
Diffraction gratings are in most optical spectrometers covering visible, IR and UV spectra. Absorption and emission spectrometers, fluorimeters, inductively coupled plasma instruments and high-performance liquid chromatography equipment all use...
Photonics Spectra, February 2018
Diffractive Optical Elements: Minimizing Zero Order
Over the years, diffractive optics have evolved into an effective way of beam shaping and splitting. Their advantages over refractive optics are well known; they’re lightweight and compact and can be integrated easily into optical systems....
Photonics Spectra, February 2018
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