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Great Strides in Optical Fabrication
In 2018, a six-and-a-half-meter mirror made up of 18 hexagonal segments will quietly unfurl 1.5 million km from Earth, marking the end of years of intense research and refining of optics fabrication techniques. In the silence of space, the James Webb Space Telescope will turn its giant primary mirror toward deep space, kicking off the start of man’s chance to look further back in history than ever before. Its development, and other high-tech projects like it, has led to many improvements in...
Photonics Spectra, October 2016
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Two-Dimensional MEMS Arrays Pave Way for Mobile Spectrometers
In the field of near-infrared (NIR) spectroscopy, a system that combines portability with the accuracy and functionality of high-performance laboratory systems would significantly enhance real-time analysis. The development of small handheld...
Photonics Spectra, October 2016
Maximum Exposure: Ray-Tracing Software Optimizes Reflector Design
The concentrated solar market is often overshadowed by photovoltaic (PV) panels, yet the market segment is expected to grow by nearly 20 percent annually through 2020. Concentrated solar power — or CSP — has unique performance advantages...
Photonics Spectra, October 2016
3D Displays Get Closer but Face Hurdles
For viewers, a trip into the third dimension is getting cheaper and more satisfying. It also could be getting a lot nearer, driven by changes in photonics, optics and the market. Further out lies the possibility of 3D displays that mimic what is...
Photonics Spectra, October 2016
THz Photonics: Delivering Fiber Data Rates on Radio Channels
The development of THz devices, operating at fiber optic wavelengths, could soon cover the last available part of the spectrum — millimeter/submillimeter frequencies — tackling the problem of bandwidth requirements for mobile end-user connectivity.
Photonics.com, September 2016
For Compactness and Ruggedness, Linear Variable Filters Fit the Bill
Spectroscopic optical applications have conventionally utilized dispersive elements such as diffraction gratings and, less commonly, prisms to separate light into its constituent wavelengths for spectral interrogation. Gratings have the advantage in...
Photonics Spectra, September 2016
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For MEMS Displays, Projections of Success
When it comes to microelectromechanical systems (MEMS)-based displays, what’s old is new — and now the only game in town. The old, and now only, technology involves projectors, which exploit MEMS chips to create images by bouncing light off either...
Photonics Spectra, September 2016
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Testing the Limits of Excimer Lasers: Annealing for Advanced Displays
Low-temperature polycrystalline silicon is increasingly used as the thin-film transistor material on the glass backplanes of high-performance displays, particularly for smartphones. These thin films are fabricated on large glass panels that then are...
Photonics Spectra, September 2016
Ensuring Accurate Quantitative Image Analysis
Quality control in materials inspection requires the ability to detect and quantify both minute surface imperfections, and those beneath the surface. Inspection is often conducted with digital imaging microscopy setups; however, such images are...
Photonics.com, September 2016
Innovation in Surface Tracking Opens Doors to Raman Imaging Applications
Scientists dream of being able to probe variations in the chemical composition and structure of materials without any form of sample preparation. Raman spectroscopy, a noncontact, nondestructive analysis tool that yields information on the chemical,...
Photonics Spectra, September 2016
Achieving Optimum LED Performance With Quantum Dots
The use of quantum dots in combination with LEDs shows huge potential benefits for the lighting industry. The versatility and tunability of quantum dots can offer solutions when optimizing luminaire design for peak performance.
Photonics.com, September 2016
Beacons of the Photonics Industry
As part of the annual Reader issue, Photonics Spectra is unveiling a new recognition program called The Beacons. Selected from nominations put forth by you, our readers, the distinction is reserved for those in the industry who have made significant...
Photonics Spectra, August 2016
Integrated Photonics: A Tale of Two Materials
With its suitability for monolithic integration for optics and photonics, silicon has been widely hailed as the material of the future. But graphene — with its capacity for signal emission, transmission and detection — could be the next...
Photonics Spectra, August 2016
Image Processing Interprets the Modern World
From the moment we wake up and open our eyes, we are processing images. It is this image processing that enables us to successfully complete tasks from the mundane to those that are undertaken only by the gifted professionals trained to make...
Photonics Spectra, August 2016
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Optical Metrology Breaks Barriers
At one time, the diffraction limit, half the wavelength of light, acted as a cutoff to optical measurement. That’s no longer the case. Superresolution techniques now allow optical metrology well below that point in the XY direction, while...
Photonics Spectra, August 2016
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Simulation, Experiment Unite Graphene and Plasmonics
Ever since a single-atom-thick film of graphite was first successfully synthesized back in 2004, graphene has been on a decade-long ride through applications ranging from photovoltaics and next-generation batteries to electronics.
Photonics Spectra, August 2016
Innovations Make Ultrafast Lasers Even Faster
Ultrafast lasers or ultrashort pulse lasers emit pulses in the range of a few femtoseconds up to a few picoseconds. These lasers are essential tools for a variety of applications like laser material processing including cutting, marking, drilling,...
Photonics Spectra, August 2016
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Reality Check
Germany is known as “the land of ideas” in the photonics industry. France has become a top contender in optics and photonics innovation. And now, Australia, China, Japan and others in the Asia-Pacific region are swiftly emerging as major players in...
Photonics Spectra, July 2016
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DLIP Quickly Changing Surface Functionalization
A wide range of products — from LEDs to solar cells to medical implants — can be improved through the use of micro- and nanostructures that significantly influence the physical properties of their surfaces. Such topographies can be...
Photonics.com, June 2016
TEA CO2 Lasers Cut into Excimer Market
Transversely excited atmosphere carbon dioxide (TEA CO2) lasers are unique in that they offer much shorter pulses and higher peak powers than conventional CO2 lasers. These properties allow TEA CO2 lasers to emulate the better-known — but...
Photonics.com, June 2016
Femtosecond Lasers: More Micromachining Apps
In the more than two decades since a team of researchers from the Center for Ultrafast Optical Science at the University of Michigan first demonstrated the use of a femtosecond laser for micromachining1, this technology has clearly made its...
Photonics.com, June 2016
Breakthrough for Real-Time THz Imaging
Terahertz technologies have become a major field of applied research, driven by the tremendous potential of applications such as nondestructive testing, biomedical imaging, security screening and telecommunications. Imaging using THz radiation has...
Photonics Spectra, July 2016
Applications on the Upswing as Cost of Imaging Systems Come Down
Every autumn — usually from mid-September until around mid-November in North America and March through May in South America — cranberries reach their peak of color and flavor and are ready for harvesting. It’s then the turn of...
Photonics Spectra, July 2016
Airy Beam Light-Sheet Microscopy Holds Promise for Life Sciences Imaging
Airy light-sheet microscopy has great potential to help further research and clinical diagnoses through its ability to image larger 3D volumes of tissues and organoids. Developed in the last three years, it is best-suited to the fields of...
Photonics Spectra, July 2016
High-Performance UVC LEDs Driving Spectroscopy Innovations
UVC LEDs are fast becoming the technology of choice for designers developing a new breed of spectroscopy devices that are smaller, less costly and more energy-efficient, while still delivering precise, real-time measurements. With efficiency and...
Photonics Spectra, July 2016
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