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Photonics and LED Lighting News

Signify adds faster, wider-range, and industrial Li-Fi systems

The dongle is still there, but a mix of infrared, optics, and other tricks is broadening the technology’s reach and applications. Meanwhile, a standards battle simmers.

Posted on 19 June 2019 | 9:12 pm

What Are The Advantages Of Drill Sets?

In the construction field, having the right tool and equipment are key to having a successful and quality result of work. One of the most important and mainly used in construction is drill set. Thus, having the right drill set will allow you to work well in creating holes for a particular project that you […]

Posted on 19 June 2019 | 8:25 am

Gooee providing IoT analytics across Dutch properties — but where are the lights?

Luminaires could come later, but for now, Gooee and its new CEO are behaving more like an IT company.

Posted on 18 June 2019 | 6:20 pm

A new force for optical tweezers

When studying biological cells using optical tweezers, one main issue is the damage caused to the cell by the tool. Giovanni Volpe, University of Gothenburg, has discovered a new type of force that will greatly reduce the amount of light used by optical tweezers—and improve the study of all kinds of cells and particles.

Posted on 18 June 2019 | 1:54 pm

Ring resonators corner light

Researchers at the Joint Quantum Institute (JQI) have created the first silicon chip that can reliably constrain light to its four corners. The effect, which arises from interfering optical pathways, isn't altered by small defects during fabrication and could eventually enable the creation of robust sources of quantum light.

Posted on 18 June 2019 | 11:50 am

LED business news: ERP acquires Lumenetix, Seoul IP, Signify buys shares

Driver specialist ERP Power has bought Lumenetix to offer a complete set of tunable SSL building blocks, while Seoul is targeting IP action at a distributor of Philips TVs and Signify again buys back shares.

Posted on 17 June 2019 | 9:17 pm

Building a better electron gun

The successful test of the LCLS-II electron gun (see related article) marks the culmination of an R&D effort spanning more than a decade at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab).

Posted on 17 June 2019 | 12:52 pm

Researchers capture microscopic manufacturing flaws via high-speed X-ray movies

Microscopic defects that occur in laser-based manufacturing of metal parts can lead to big problems if undetected, and the process of fixing these flaws can increase the time and cost of high-tech manufacturing. But new research into the cause of these flaws could lead to a remedy.

Posted on 17 June 2019 | 12:32 pm

Technologies don’t always demand either/or decisions

Connectivity and communications may require a more complementary, rather than competitive, approach in the LED and SSL sector.

Posted on 14 June 2019 | 4:06 pm

A new method for the generation of intense X-ray and gamma-ray radiation

International group of researchers including scientists from Skoltech have invented a new method for the generation of intense X-ray and gamma-ray radiation based on nonlinear Compton scattering. Their results were published in Physical Review Letters.

Posted on 14 June 2019 | 1:34 pm

Laser trick produces high-energy terahertz pulses

A team of scientists from DESY and the University of Hamburg has achieved an important milestone in the quest for a new type of compact particle accelerator. Using ultra-powerful pulses of laser light, they were able to produce particularly high-energy flashes of radiation in the terahertz range having a sharply defined wavelength (color). Terahertz radiation is to open the way for a new generation of compact particle accelerators that will find room on a lab bench. The team headed by Andreas Maier and Franz Kärtner from the Hamburg Center for Free-Electron Laser Science (CFEL) is presenting its findings in the journal Nature Communications. CFEL is jointly run by DESY, the University of Hamburg and the Max Planck Society.

Posted on 14 June 2019 | 12:52 pm

Phase-change materials from smartphones may lead to higher data storage, energy efficiency

Phase-change materials that are used in the latest generation of smartphones could lead to higher storage capability and more energy efficiency. Data is recorded by switching between glassy and crystalline material states by applying a heat pulse. However, to date it has not been possible to study what happens at the atomic level during this process.

Posted on 14 June 2019 | 12:12 pm

Discovery of light-induced ferroelectricity in strontium titanate

Light can be used not only to measure materials' properties, but also to change them. Especially interesting are those cases in which the function of a material can be modified, such as its ability to conduct electricity or to store information in its magnetic state. A team led by Andrea Cavalleri from the Max Planck Institute for the Structure and Dynamics of Matter in Hamburg have used terahertz frequency light pulses to transform a non-ferroelectric material into a ferroelectric one.

Posted on 14 June 2019 | 11:50 am

Life Is Tough – Getting Movies Should Be Easy

We owe it to the continuous advancement and development of technology that almost everything in our modern generation can be accessed easily and conveniently. Getting movies is one strong example of this statement. In the old times, the only way to see motion pictures is to go to the cinema and theater. But today, watching […]

Posted on 14 June 2019 | 10:13 am

Ultimate Guide And 5 Tips For Opening Your Own Massage Therapy Business

One of the primary aspects of opening your own massage therapy business is to get a professional certificate. For becoming a professional massage therapist, it is mandatory for you to get certified in therapies. If you are opening your own fredericton massage clinic then, properly consult all the things which are mentioned in this article. […]

Posted on 13 June 2019 | 10:40 am

Inexpensive, simple fabrication method poised to expand microlens applications

A growing number of applications, including smartphone cameras, depend on microlenses to boost performance. A newly developed technology, called laser catapulting, could make it much easier and less expensive to fabricate these miniaturized lenses with customized properties, such as shape or focusing power.

Posted on 12 June 2019 | 8:06 pm

CEO leaves Current following its sale by GE

The thrill is gone for Maryrose Sylvester, who departs for Swiss power and automation giant ABB.

Posted on 12 June 2019 | 3:58 pm

Diffusing wave paradox may be used to design micro-robotics

Amoeba are unusual creatures that form when a dispersed population of cells spontaneously comes together and reorganizes itself into a multicellular macroscopic organism. To do this, a few leader cells emit chemical pulses that cause the other individual cells to move in the direction opposite to that of the traveling pulses, leading to the formation of dense clusters.

Posted on 12 June 2019 | 1:30 pm

Hybrid nanostructure steps up light-harvesting efficiency

To absorb incoming sunlight, plants and certain kinds of bacteria rely on a light-harvesting protein complex containing molecules called chromophores. This complex funnels solar energy to the photosynthetic reaction center, where it is converted into chemical energy for metabolic processes.

Posted on 12 June 2019 | 1:20 pm

Increase in resolution, scale takes CT scanning and diagnosis to the next level

To diagnose and treat diseases like cancer, scientists and doctors must understand how cells respond to different medical conditions and treatments. Researchers have developed a new way to study disease at the cellular level.

Posted on 12 June 2019 | 12:24 pm

Researchers discover new nanoparticles with exclusively lateral light scattering

An international team of physicists has produced first evidence of particles capable of scattering light in a lateral direction by suppressing forward and backward scattering. The researchers studied the physics behind this phenomenon and confirmed their theoretical results with an experiment in the microwave spectral range, proving that lattices or metasurfaces made of these materials can be completely invisible. These results can be used in a variety of applications including light routing, binary-coded holograms, and sensors. The study was published in Physical Review Letters.

Posted on 12 June 2019 | 11:40 am

Hybrid device may help doctors treat strokes more quickly

Stroke, one of the leading causes of death worldwide, is normally caused by poor blood flow to the brain, or cerebral ischemia. This condition must be diagnosed within the first few hours of the stroke for treatment to be effective, according to the Mayo Clinic.

Posted on 11 June 2019 | 3:00 pm

Using a selective light absorber to build a photothermal catalysis system

Researchers at Hebei University in China and Hakkaido University in Japan have recently used a selective light absorber to construct a photothermal system that can generate temperatures up to 288°C under weak solar irradiation (1 kW m-2). This system, presented in Nature Communications, achieved a temperature three times higher than that generated by traditional phototermal catalysis systems.

Posted on 11 June 2019 | 1:30 pm

Direct atom-resolved imaging of magnetic materials

In conventional electron microscopes, performing atomic-resolution observations of magnetic materials is particularly difficult because high magnetic fields are inevitably exerted on samples inside the magnetic objective lens. Newly developed magnetic objective-lens system provides a magnetic-field-free environment at the sample position. This enables direct, atom-resolved imaging of magnetic materials such as silicon steels. This novel electron microscope is expected to be extensively used for the research and development of advanced magnetic materials.

Posted on 11 June 2019 | 12:41 pm

Do LED grow lights provide enough heat in a greenhouse?

Tunable LEDs are all the rage for dialing the right light recipe. But one Belgium tomato farm wasn’t so sure they would be physically warm enough. So the growers took extra steps.

Posted on 10 June 2019 | 8:35 pm

Multicolored light twists in new knotted ways

Around age six, we start learning how to tie our shoelaces, making knots that look like ribbons—or possibly more complex forms, if we are a little clumsy. We use knots every day, but the type of knots we generally use are associated with physical objects, things we can touch.

Posted on 10 June 2019 | 4:22 pm

Fiber-optic probe can see molecular bonds

In "Avengers: Endgame," Tony Stark warned Scott Lang that sending him into the quantum realm and bringing him back would be a "billion-to-one cosmic fluke."

Posted on 10 June 2019 | 3:00 pm

NIST infrared frequency comb measures biological signatures

Researchers at the National Institute of Standards and Technology (NIST) and collaborators have demonstrated a compact frequency-comb apparatus that rapidly measures the entire infrared band of light to detect biological, chemical and physical properties of matter. Infrared light travels in waves longer than visible light and is most familiar as the radiation associated with heat.

Posted on 7 June 2019 | 6:00 pm

Bringing LED industry events into sharp focus

Taking time to consider the event after a show closes means we concentrate more fully on what’s really significant or innovative outside of the big picture.

Posted on 7 June 2019 | 4:26 pm

Probing semiconductor crystals with a sphere of light

Tohoku University researchers have developed a technique using a hollow sphere to measure the electronic and optical properties of large semiconducting crystals. The approach, published in the journal Applied Physics Express, improves on current photoluminescence spectroscopy techniques and could lead to energy savings for mass producers, and thus consumers, of power devices.

Posted on 7 June 2019 | 3:49 pm

Oil and gas industry issues circadian lighting guidelines

American Petroleum Institute tells members to “minimize circadian disruptions.” That means strip down the blue, at least one expert says.

Posted on 6 June 2019 | 7:53 pm

Polarization-encryption based data storage in 3-D Janus plasmonic helical nanoapertures

Helical plasmonic nanostructures have attracted considerable attention in materials science and chemistry due to their inherent optical chirality. In a new report, Yang Chen and a research team in the department of Mechanical and Aerospace Engineering in the U.S. developed unique 3-D Janus (nanoparticles with two or more surface properties) plasmonic helical nanoapertures (helical holes), with direction-controlled polarization sensitivity. They engineered the helical structures using one-step grayscale focused ion beam milling (FIB). Chen et al. then encoded the Janus metasurface with two nanoaperture enantiomers (left and right handed mirror image molecules of each other) with specific rotational angles to demonstrate direction-controlled polarization data encryption for the first time.

Posted on 6 June 2019 | 1:30 pm

Chip design dramatically reduces energy needed to compute with light

MIT researchers have developed a novel "photonic" chip that uses light instead of electricity—and consumes relatively little power in the process. The chip could be used to process massive neural networks millions of times more efficiently than today's classical computers do.

Posted on 6 June 2019 | 11:45 am

IoT mesh specialist Wirepas lands €14.4M venture round

Bluetooth and Zigbee are not the only game in town for lighting companies looking to smarten up.

Posted on 5 June 2019 | 8:24 pm

Experts debate key issues that lighting professionals face relative to LEDs and SSL (MAGAZINE)

Strategies in Light panelists reveal just how complex SSL issues such as connected lighting, color tuning, metrics, and controls are even for experts with a game-show format adding entertainment value. MAURY WRIGHT reports.

Posted on 4 June 2019 | 7:22 pm

To bulb or not to bulb — Is that even the question? (MAGAZINE)

After participating in a panel at Strategies in Light, lighting industry insider CLIFTON STANLEY LEMON brings a significant debate about SSL form factors to the fore of the discussion.

Posted on 4 June 2019 | 3:59 pm

Intra-luminaire interfaces pave a path to a smart LED luminaire future (MAGAZINE)

Standardization of an interface used to connect subsystems internal to a luminaire will allow SSL manufacturers an affordable path to delivering smart lighting, writes MAURY WRIGHT.

Posted on 4 June 2019 | 3:50 pm

Security giant Securitas wants to redefine the way lights deter the burglars (MAGAZINE)

The plan has much less to do with illumination and much more to do with — what else? — the IoT. A trial with Fagerhult at a Swedish biotech park could soon help bring the concept to market. MARK HALPER reports.

Posted on 4 June 2019 | 3:48 pm

Bluetooth Mesh expert addresses common questions about connected SSL (MAGAZINE)

During a webcast on using Bluetooth Mesh to connect LED lighting in commercial buildings and even outdoors, SIMON SLUPIK answered audience questions on major benefits of the network technology platform and how ROI compares to alternatives.

Posted on 4 June 2019 | 3:46 pm

Consumers prefer easily changeable SSL sources — the bulb, for now (MAGAZINE)

Although technology capabilities and quality-of-light demands support the adoption of advanced LED luminaires, in many cases the simple swap of a lamp still prevails.

Posted on 4 June 2019 | 3:43 pm

Dowsing for electric fields in liquid crystals

You may not know it, but you probably spend several hours a day looking at nematic liquid crystals; they are used in virtually every smartphone, computer and TV screen. They are liquids composed of elongated molecules, which in some situations can be oriented in a curious way termed the 'dowser texture', which is sensitive to external conditions. Physicists Pawel Pieranski of the Universite Paris-Sud, Paris, France and Maria Helena Godinho of Universidade Nova de Lisboa, Lisbon, Portugal have now published a paper in EPJ E that shows that the dowser texture responds to electric fields in different ways in different nematic materials.

Posted on 4 June 2019 | 3:10 pm

Practical Ways To Increase Your Followers On Twitter

A lot of us want to have plenty of followers on Twitter or other social media accounts for different reasons. For personal accounts, people want to have it to make themselves famous. For company accounts, on the other hand, it is a way to also boost their brand. It can also be a way to […]

Posted on 4 June 2019 | 2:43 pm

Osram Opto launches quantum-dot-based mid-power LED at LightFair

Quantum dots deliver a red spectral energy peak more efficiently than phosphor. Osram has developed the technology to ensure reliability and lifetime matching mid-power LEDs.

Posted on 3 June 2019 | 6:48 pm

Sensitive new laser technique detects volatile organic compounds

Researchers have developed a new way of operating miniature quantum cascade lasers (QCLs) to rapidly measure the absorption spectra of different organic molecules in the air simultaneously. The technique offers a sensitive method for detecting low concentrations of volatile organic compounds (VOCs), improving the ability to track how these compounds affect human health, industrial processes and ambient air quality. The new system also could improve the reliability of breath alcohol tests by more selectively distinguishing between ethanol and the other gases people exhale.

Posted on 3 June 2019 | 3:49 pm

Don’t hit the snooze button — Submit your Strategies in Light proposals

With the call for abstracts deadline creeping closer, we’re advising you not to wait in delivering your proposal for a Strategies in Light speaking opportunity.

Posted on 31 May 2019 | 3:32 pm

Horticultural LED demos at LightFair illustrate the emphasis on red spectrum

Plants thrive on red spectral energy stretching to near infrared, and LED manufacturers at LightFair International demonstrated new approaches to deliver that energy in both mid- and high-power packages.

Posted on 31 May 2019 | 3:24 pm

ON Semiconductor offers lighting companies a third way to the IoT

Signify, Osram, and others look interested in the company’s battery-free technology, which puts sensors and transceivers outside of the lights, powered by solar and kinetic energy.

Posted on 31 May 2019 | 1:29 pm

SLAC fires up electron gun for LCLS-II X-ray laser upgrade

Crews at the Department of Energy's SLAC National Accelerator Laboratory have powered up a new electron gun, a key component of the lab's upgrade of its Linac Coherent Light Source (LCLS) X-ray laser, and last night it fired its first electrons.

Posted on 31 May 2019 | 1:02 pm

Out with ‘human centric,’ in with ‘nutritional light’

The new Good Light Group wants to rebrand healthy lighting, and give it a kick.

Posted on 30 May 2019 | 3:36 pm

Which Bosch Angle Grinder Is For You

What is an angle grinder used for, one might ask. These powerful tools are a handyman’s and hobbyist’s best friend. Not only are they powerful, but they’re quite convenient to use with how manageable they are. They can cut, grind, polish and saw off materials to your liking at the easiest way possible. Angle grinders […]

Posted on 29 May 2019 | 5:23 pm

On-demand, photonic entanglement synthesizer

Quantum information protocols are based on a variety of entanglement modes such as Einstein-Podolsky-Rosen (EPR), Greenberger-Horne-Zeilinger (GHZ) and other cluster states. For on-demand preparation, these states can be realized with squeezed light sources in optics, but such experiments lack versatility as they require a variety of optical circuits to individually realize diverse states of entanglement. In a recent study, Shuntaro Takeda and colleagues at the interdisciplinary departments of Applied Physics and Engineering in Japan addressed the shortcoming by developing an on-demand entanglement synthesizer. Using the experimental setup, the physicists programmably generated entangled states from a single squeezed source of light.

Posted on 29 May 2019 | 1:30 pm

Experts develop nanolasers on silicon

Researchers at Cardiff University have shown tiny light-emitting nanolasers less than a tenth of the size of the width of a human hair can be integrated into silicon chip design.

Posted on 29 May 2019 | 1:18 pm

Radiation damage lowers melting point of potential fusion reactor material

Radiation damage lowers the melting point of the metal tungsten, an effect that could contribute to material failure in nuclear fusion reactors and other applications where materials are exposed to particle radiation from extremely hot fusion plasma. That's the result of a study, published today in Science Advances, that was led by researchers at the Department of Energy's SLAC National Accelerator Laboratory.

Posted on 28 May 2019 | 1:35 pm

Less can be more: Semiconductor nanowires for flexible photovoltaics

Capturing and manipulating light at nanoscale is a key factor to build high efficiency solar cells. Researchers in the 3-D Photovoltaics group have recently presented a promising new design. Their simulations show that vertically stacked nanowires on top of ultrathin silicon films reduces the total amount of material needed by 90 percent while increasing the efficiency of the solar cell. These promising simulation results are an important step toward next-generation solar cells. The results have been published on May 23rd in Optics Express.

Posted on 28 May 2019 | 12:40 pm

3 Fast And Simple Ways Of Making A Timeline Template

Making the perfect timeline template for a project can be a tricky task. However, if one knows the right way and order in which things need to be done,making it can be simple and fast. They can be made using a number of applications and do not require much skill. One just needs to follow […]

Posted on 28 May 2019 | 11:53 am

Categorizing Different Genres Of Comedy Shows That You Might Find Interesting

People love watching comedy shows and an unending laughter show for a few hours can really make the difference in your physical conditions. So, choosing the type of comedy show that you like might be a difficult task. Here are a few options on different comedy shows which you might consider worth watching depending on […]

Posted on 27 May 2019 | 4:37 pm

New discovery about terahertz radiation benefits biomedicine

Scientists from ITMO University for the first time in the world managed to directly measure the nonlinear refractive index of matter in the terahertz range. The results of the experiments were compared with previous theoretical predictions to confirm the presence of nonlinear effects. The obtained data can be used to control light, as well as in fundamental and biomedical research. The results are published in Optics Express.

Posted on 27 May 2019 | 1:09 pm

Types Of Equipment Used In Oilfield Power Generator

A great source of generating power is a using power generator. Also, there are many different kinds of equipment that are used in an oilfield power generator. You can find a great variety of equipment varying from small to large in the market, and it is always better to use the oilfield power generators as […]

Posted on 26 May 2019 | 7:19 pm

Signify to acquire two livestock lighting companies

Spectrally tuned systems can help fatten up indoor poultry, pigs, and other animals, and can even help calm them down, the companies claim.

Posted on 23 May 2019 | 8:28 pm

Semiconductor stalwart Arm launches a smart building initiative, with a lighting twist

“Co-opetition” between the lighting and IT industries for IoT business is ratcheting up. Sometimes it will be outright competition.

Posted on 21 May 2019 | 9:00 pm

Natural Weed-Killers You Can Find And Make At Home

If you’re a homeowner and has a lawn and garden in your home, chances are you had dealt with stubborn, unwanted plants growing over your precious soil. There are a number of ways to go about in dealing with these pesky weeds. You can try weeding them out manually with hands and a small garden […]

Posted on 21 May 2019 | 11:49 am

LightFair 2019 exhibitors prepare their SSL wares

The SSL design and technology community is preparing to land in the City of Brotherly Love for the annual LightFair tradeshow and conference. Following is a sample of exhibits you can expect at the event.

Posted on 17 May 2019 | 8:58 pm

Britain’s Institute of Physics kicks the Li-Fi tires

Visiting members can jump on the Internet via light communications technology in a small showcase deployment by pureLiFi at the IOP’s modern new London home.

Posted on 16 May 2019 | 6:48 pm

University of Basel publishes sleep research tied to Seoul SunLike LEDs

A uniform spectral power distribution was associated with improved sleep patterns and heightened daytime alertness in a laboratory study at the University of Basel in Switzerland.

Posted on 16 May 2019 | 5:07 pm

What You Need To Know About Post-Acute Rehabilitation

Post-Acute rehabilitation or PAC is defined as the “the rehabilitation or palliative services that individuals receive after, or in some cases instead of, a stay in an acute care hospital”. Of course, this kind of rehabilitation depends on the kind of disease that the individual has and the specific treatments that it requires. From the […]

Posted on 28 April 2019 | 3:40 pm