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LSCM and RelA for Quantifying Microwear: A Case Study
Laser scanning confocal microscopy and relative area are effective tools for surface-roughness analysis of experimental Mistassini quartzite scrapers. Laser scanning confocal microscopy (LSCM) and relative area (RelA) are effective tools for the documentation and discrimination of surface roughness on experimental stone tools made from Mistassini quartzite. Together, their ability to effectively document and discriminate wear on these experimental tools offers archaeologists another method
Photonics Spectra, February 2015
Multispectral Imaging Extends Vision Technology Capability
Multispectral imaging takes the detection capability of machine vision beyond just color inspection. With wafer-level coating of multispectral filters, advanced multispectral cameras now can be designed in a compact form factor. The result: many new...
Photonics Spectra, February 2015
Nanoimprint Lithography Enables Cost-Effective Photonics Production
The ability to create wafer-scale stitching-error-free patterns of nanostructures on bowed and warped surfaces and even on topography, as well as direct patterning of 3-D structures, makes nanoimprint lithography ideally suited for the needs of a...
Photonics Spectra, February 2015
CO2 Laser Machine Tools Speed Sign Cutting
Interior plastic signs are ubiquitous in hotels, office buildings, hospitals and other structures. These signs may seem like simple products, but they are actually often complex assemblies of numerous pieces. Like many other manufacturers, sign...
Photonics.com, January 2015
Industrial Applications of Laser Profiling
Beam intensity profiling is an essential tool in many aspects of industry. The precise intensity distribution is critical in many applications, such as laser plate printing, laser cutting, particle measurement, medical lasers and biomedical...
Photonics.com, January 2015
Ultrafast Lasers Enable Improvements in Microprocessing
Ultrafast lasers provide an avenue into a number of new microprocessing applications because of their capability for athermal ablation and their extremely high peak power. Many materials and applications can be susceptible to adverse heating effects...
Photonics.com, January 2015
Photonics Innovators Named 2015 Prism Awards Finalists
Finalists include tools for 3-D printing, water analysis and laser-engineered surfaces. Innovative products, inventions and companies will take center stage Feb. 11, as the winners of the 2015 Prism Awards for Photonics Innovation are honored during...
Photonics Spectra, January 2015
Silicon Photonics: A Field that Is Constantly Changing
In this active, exciting area of development, new devices, techniques and studies are presented at every turn. Electronics and photonics have been two worlds apart for many years: Electronics had an explosion that forever changed the way consumers...
Photonics Spectra, January 2015
Trends in Miniaturization
Exploiting the unusual optical properties of very small objects, quantum-based technologies are starting to revolutionize lasers, solar cells, communications and more. Smaller is often better, as it frequently can reduce the size and weight of gear...
Photonics Spectra, January 2015
Trends in Modularity
Step by step, piece by piece, modularity is finding a home in optics, and microscopy and spectrometry applications are benefiting from the availability of modular systems. Furniture. Spacecraft. “Dungeons & Dragons” adventures. In...
Photonics Spectra, January 2015
Trends in New Materials
Scientists are developing an entirely new generation of ultrathin materials such as graphene and germanene, whose photonic properties promise a new frontier of components and devices. Graphene is a wonder material: a sheet of pure, stable carbon in...
Photonics Spectra, January 2015
Trends in Sustainability
The global “green revolution” is pushing the boundaries of photonics as governments, companies and citizens work to preserve our world and its resources. From individual citizens and businesses right up to entire industries and...
Photonics Spectra, January 2015
Trends in The Economy
Advancing technologies, broader applications and societal trends are impacting both the industry and the economy. No trends issue would be complete without a discussion about the global economy and its impact on the photonics industry – as...
Photonics Spectra, January 2015
High-Speed Line-Scan Sensors Improve Spectroscopy
CMOS linear arrays allow the optical signal to be digitized directly on the chip, making the electronics design simpler, more cost-efficient and more robust. CMOS image sensors were attractive initially because of their lower overall system costs,...
Photonics.com, December 2014
Nanotube-Based Solar Cells Make More of the Sun
They’re cheaper, lighter, flexible and easy to dispose – it’s little wonder that carbon nanotubes are grabbing the attention of solar cell specialists in Europe and beyond. Since they were first discovered in 1991, carbon nanotubes...
Photonics.com, December 2014
Printed Optics Usher in New Era of Manufacturing
Additive manufacturing techniques are set to revolutionize fabrication and integration of optical products for a variety of applications, from lighting to imaging and beyond. Additive manufacturing techniques are creating a new awakening in optics...
Photonics.com, December 2014
Active Alignment Techniques Improve Lens Centering
An optimized active optical alignment process enables accurate, cost-effective production of precision lens assemblies. An optomechanical engineer faces many challenges when assigning tolerances for precision lens assemblies. Beginning with a...
Photonics Spectra, December 2014
Automated Fiber Aligners Improve Packaging
Computer-controlled fiber alignment engines help process engineers achieve higher throughput in photonics packaging applications. Fiber alignment used to be a tedious manual task, back before the telecom boom. But automated fiber aligners have...
Photonics Spectra, December 2014
Mounting Precision Enhances Laser Performance
Optical mounts literally form the skeleton of virtually all laser systems. The development of mounts with greater stability and wavefront fidelity is key to the creation of higher-performance laser-based tools. This, in turn, extends the precision...
Photonics Spectra, December 2014
OPO-Based Photoacoustic Spectroscopy Speeds Up Gas Analysis
High mid-IR output power from an optical parametric oscillator teams up with novel cantilever-enhanced photoacoustic measurement technology to offer extreme sensitivity and selectivity in industrial gas analysis and monitoring. The ultimate...
Photonics Spectra, December 2014
'Internet of Lights' Meets Industrial Internet of Things
A network of LED lights can be controlled with new levels of ease and precision using commercially available intelligent lighting modules and control networking solutions. The initial promise of LED lighting was to deliver more efficient lighting...
Photonics Spectra, November 2014
Breaking Ground Now: Next-Gen Giant Telescopes
The largest telescope on Earth is currently the Gran Telescopio Canarias in the Canary Islands of Spain, which was built in 2009 with an aperture of 10.4 m. This 10-m design will hold the record for another four to eight years, but a new crop of...
Photonics Spectra, November 2014
Microbolometers Move Thermal Imaging into Next-Gen Commercial Uses
Technology advances and improved manufacturing of uncooled thermal detectors are fueling this application expansion. First developed for military applications in the 1950s, thermal imaging lets humans see objects that are not visible to the eye by...
Photonics Spectra, November 2014
MWIR for Remote Sniffing and Locating of Gases
A mid-wave infrared camera visualizes methane gas cloud leaking from a drilling platform. Methane is a greenhouse gas that is significantly more damaging than carbon dioxide. When it leaks uncontrolled from industrial plants, it can easily escape...
Photonics Spectra, November 2014
PMD Camera Enhances 3-D Imaging
A CMOS-architecture imaging array where each pixel is a photonic mixer device overcomes challenges in 3-D image capture. Gauging the distance, size and shape of an object is of paramount and self-evident practical importance in everyday life. Nature...
Photonics Spectra, November 2014
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