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Measuring Surface Features With High Resolution in Factory Environments May 24, 2017 — Small-scale surface features, whether desired — such as laser marking and dot peening — or unintended — such as scratches, nicks, dents, pitting, edge break and local curvature — can greatly affect the value, performance and lifetime of critical components. Portable roughness gages are able to quantify surface roughness on the shop floor. Coordinate measurement machines, stereoscopes and laser line scanners can examine overall shape. But to date, it has not been
Industrial Photonics, Jul 2017
Dynamic Beam Shaping Improves Laser Cutting of Thick Steel Plates May 23, 2017 — Even though thick plate cutting has a subsidiary market share in laser material processing, it is still a necessary feature for state-of-the-art machines. In recent years, research has concentrated on various quality issues, especially dross...
Industrial Photonics, Jul 2017
Quantum Dots, Fluorescent Proteins Vie for Supremacy May 23, 2017 — The first advances in color displays date to the mid ’50s with the development of the cathode ray tube1, the primary display technology until liquid crystal displays (LCDs) emerged a decade ago. For a brief period, plasma technology showed...
Photonics Spectra, Jul 2017
Embedded Vision Propels Bead Inspection May 23, 2017 — Automotive designers are more frequently turning to structural adhesives as a solution for strengthening, structurally optimizing and lightweighting automotive bodies. These adhesives enable mixing material types to achieve lightweight structures...
Industrial Photonics, Jul 2017
Interweaving Photonics Research, Industry May 22, 2017 — Laser World of Photonics provides a spotlight for promising newcomers, industry veterans and innovative companies. And with tens of thousands of people from countries around the globe attending the show, that spotlight is huge. In 2015, the...
EuroPhotonics, Jun 2017
Getting the Picture on Quality Control May 17, 2017 — As product and manufacturing specifications tighten, imaging for industrial quality control (QC) faces challenges. For one thing, the tolerances that parts must be inspected to are more exacting. For another, specifications for layer composition,...
Industrial Photonics, Jul 2017
Interweaving Photonics Research, Industry May 4, 2017 — Laser World of Photonics provides a spotlight for promising newcomers, industry veterans and innovative companies. And with tens of thousands of people from countries around the globe attending the show, that spotlight is huge. In 2015, the...
Photonics Spectra, Jun 2017
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IoT Unlocks New Markets for Compact Optical Sensors May 3, 2017 — It’s a complex, technology-mixing ecosystem that combines sensors, IT and networking technologies to enable billions of devices to be connected around the world. On a typical day, you may not even realize the plethora of smart technology...
Photonics Spectra, Jun 2017
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Demanding Applications Call for Reflective Objectives May 3, 2017 — Laser systems costs are falling, leading to their increased use in a host of demanding applications from machining to hyperspectral imaging. Often in these cases, a small, diffraction-limited spot size is required. When specifying a microscope...
Photonics Spectra, Jun 2017
Fast and Sensitive Mid-IR Detectors for Gas Sensing May 2, 2017 — Demands from industrial, petrochemical and new medical diagnostic applications are very wide-ranging — from air quality, emission monitoring and leak detectors, to breath analyzers and explosive material sensors. For many years, mid-IR...
EuroPhotonics, Jun 2017
Optical Sensors Advancing Precision in Agricultural Production May 1, 2017 — Agricultural production, already incredibly efficient in much of the developed world, is increasing each year — this is a necessity to feed the 9+ billion people expected on the planet by 2050. A great example of productivity gains is in corn...
Photonics Spectra, Jun 2017
Designing Lighting Systems Tuned to Circadian Rhythms Apr 25, 2017 — There is a lot of interest these days in the physiological effect of light on the human body. Variously referred to as human-centric lighting, biological lighting, or circadian lighting, all reflect the emerging understanding that light can have a...
Photonics Spectra, Jun 2017
Spectroscopy for the Masses Apr 25, 2017 — The past few years have seen an explosion in consumer adoption of connected and wearable devices, which has been good for photonics. In 2017, nearly 40 million consumers in the U.S. alone (roughly 30 percent of households) are expected to own...
Photonics Spectra, Jun 2017
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3D Imaging Aids Life Sciences Apr 17, 2017 — While human bodies and single cells are three-dimensional, in the past, 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...
EuroPhotonics, Jun 2017
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Fiber Laser Welding Cuts Costs and Improves Results Apr 12, 2017 — Most traditional — i.e., nonlaser — welding techniques currently in use are variations of arc welding. In these methods, two pieces of metal are first brought into contact or close physical proximity. The edges of the pieces may have...
EuroPhotonics, Jun 2017
Fluorescence Imaging Enters the Surgical Suite Apr 12, 2017 — In the last decade, researchers have worked extensively on medical devices and applications that measure the spectral response of tissue to various wavelengths of light. These applications, in a lab or proof-of-principle setup, have proven the...
BioPhotonics, Jun 2017
Medical Lasers Cut and Heal Apr 7, 2017 — For medical lasers, the future may include both addition and subtraction. That’s because in medicine, lasers have traditionally been used for ablation, cutting and other processes that remove tissue. Now researchers and companies are looking...
BioPhotonics, Jun 2017
Free-Space Optical Communications Comes of Age Apr 6, 2017 — Back in the early 1960s, when first the laser and soon thereafter the semiconductor laser were invented, it was predicted by visionaries that, before long, such sources of coherent light would be used for communication. It actually took more than 25...
Photonics Spectra, May 2017
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FLIM Delivers Intracellular Images Based on Differences Apr 6, 2017 — Fluorescence lifetime imaging microscopy (FLIM) enables researchers in the life sciences to get information from live specimens about interactions on the molecular scale. The technique captures the differences in the excited state decay rate from a...
BioPhotonics, Jun 2017
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A Breakthrough for Reference-Free Holography Mar 30, 2017 — The term “holography” means a drawing that contains all the information of light — including its intensity and phase information. In contrast, photography only measures the intensity of light, and thus cannot address...
Photonics Spectra, May 2017
Challenges and Opportunities in Superresolution Mar 28, 2017 — Much of our understanding of biology has come from our ability to image biological processes and structures through microscopes. But until recently, the imaging of intracellular structures and activities has been constrained by the optical...
BioPhotonics, Jun 2017
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Added Intelligence Transforms Medical Sensors Into Diagnostic Devices Mar 21, 2017 — As sensors shrink in size, they are able to reach places that were previously inaccessible — such as inside the human body. What is more, incorporating such increasingly tiny sensors within a medical device means there is more space left for added...
Photonics Spectra, May 2017
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Superluminescent LEDs Bridge the Gap Mar 10, 2017 — Superluminescent light-emitting diodes are broadband semiconductor devices that are closely related to their more commonly known relatives, laser diodes and light-emitting diodes. All three architectures consist of positively (p)-doped and...
Photonics Spectra, May 2017
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Point-of-Care Photonics Deliver Vital Care in Developing Regions Mar 8, 2017 — Nowhere does the burden of disease weigh as heavily on people as it does in the low-resource settings of the developing world. Residents in parts of Asia, Africa and South America are highly vulnerable to communicable diseases such as malaria and...
BioPhotonics, Apr 2017
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In Optogenetics, Femtosecond Lasers Blaze New Paths Mar 6, 2017 — One of the most active and exciting areas in neuroscience is the use of optogenetics to unravel how neural pathways in the brain process and transmit information. Optogenetics involves the use of light-sensitive opsins — a special class of...
BioPhotonics, Apr 2017
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