Photonics and LED Lighting News

UCLA engineers use deep learning to reconstruct holograms and improve optical microscopy

A form of machine learning called deep learning is one of the key technologies behind recent advances in applications like real-time speech recognition and automated image and video labeling.

Posted on 20 November 2017 | 9:50 pm

A curious quirk brings organic diode lasers one step closer

Since their invention in 1962, semiconductor diode lasers have revolutionized communications and made possible information storage and retrieval in CDs, DVDs and Blu-ray devices. These diode lasers use inorganic semiconductors grown in elaborate high vacuum systems. Now, a team of researchers from Penn State and Princeton University have taken a big step toward creating a diode laser from a hybrid organic-inorganic material that can be deposited from solution on a laboratory benchtop.

Posted on 20 November 2017 | 4:52 pm

Glass microparticles enhance solar cells efficiency

Scientists from ITMO University have suggested a new solar cell coating that combines features of an electrode and those of a light-trapping structure. The coating enabled researchers to cut down on reflected light and avoid solar cell overheating, thus increasing its overall efficiency by 20 percent. Moreover, the suggested method may be attractive for industrial applications due to its relatively low cost and simplicity. The results of the research were published in Optics Letters.

Posted on 20 November 2017 | 11:27 am

Why Women Undertake Breast Lift Surgery?

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Posted on 19 November 2017 | 12:10 am

Having Rugs on Your Hardwood Floors

You are probably having doubts in placing area rugs on your hardwood floors, simply because you do not want your floor to acquire scratch and damages. Actually, you just have to know what kind of rugs are safe for hardwood floors, and you do not have to worry about such things! What Can the Right ...

Posted on 18 November 2017 | 12:10 am

Carefully crafted light pulses control neuron activity

Specially tailored, ultrafast pulses of light can trigger neurons to fire and could one day help patients with light-sensitive circadian or mood problems, according to a new study in mice at the University of Illinois.

Posted on 17 November 2017 | 5:37 pm

You Cannot Ignore Auto Insurance

There are people that believe that an insurance isn’t really essential and this is something that they also speak about when it comes to car insurance however you need to understand that when you plan on getting an insurance for your car not only do you safeguard the health of your car but you also ...

Posted on 17 November 2017 | 11:56 am

Researchers tunnel to a new light source

With concerns over moving to a clean energy platform worldwide with electric vehicles and renewables, wasted energy is a factor as important as the amount of green energy produced. Thus, solid-state lighting based upon light-emitting diodes (LEDs) is touted as a solution. However, LEDs struggle to deliver high brightness for the shorter-wavelength end of lighting needs. And emitted short wavelengths facilitate white light through known phosphor downconverters.

Posted on 17 November 2017 | 11:50 am

New imaging technique peers inside living cells

To undergo high-resolution imaging, cells often must be sliced and diced, dehydrated, painted with toxic stains, or embedded in resin. For cells, the result is certain death.

Posted on 16 November 2017 | 7:19 pm

The stacked color sensor

Red-sensitive, blue-sensitive and green-sensitive color sensors stacked on top of each other instead of being lined up in a mosaic pattern – this principle could allow image sensors with unprecedented resolution and sensitivity to light to be created. However, so far, the reality hasn't quite met expectations. Researchers from Empa and ETH Zurich have now developed a sensor prototype that absorbs light almost optimally – and is also cheap to produce.

Posted on 16 November 2017 | 6:12 pm

Get Swimming Lessons From The Best

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Posted on 16 November 2017 | 4:43 pm

Micro-spectroscopy opens new routes for diagnostics

Just as mechanical properties and chemical compositions of materials are of fundamental importance in buildings, the cells that comprise every living organism have different properties and shapes depending on their function and state. Uncontrolled modifications in cell elasticity, or in the elasticity of any biological tissue in general, are symptoms and effects of pathologies—hardened coronary arteries causing heart problems, weakened bones inducing orthopedic complications, elastic changes in corneal tissue provoking ocular pathologies, etc. A non-invasive experimental technique that can probe in-situ the elastic and the biochemical properties of cells and tissues would be a strategic diagnostic tool.

Posted on 16 November 2017 | 12:12 pm

Microscopic structures for vibration-resistant plugs

Everyone has probably had a problem with loose contacts at some point. Electronic equipment malfunctioning is often caused by poor plug connections. In particular in the automotive industry, where electronics are increasingly being used, the quality of plug contacts plays a pivotal role – and this where materials science can come in. Special microscale and nanoscale structures, which can be rapidly and cost-effectively produced using new laser technologies, are now set to ensure increased fail safety.

Posted on 15 November 2017 | 2:01 pm

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Posted on 15 November 2017 | 12:10 am

How A Beginner Can Learn Guitar?

It is fact that people who playing guitar their memory is very sharp and their behavior is very calm as compare to other people. No doubt, there are already too many music instruments available but mostly people prefer the guitar because it is quite easy to learn. There are many lessons, which are quite complicated ...

Posted on 15 November 2017 | 12:10 am

Best Source To Buy Trendy Clothes At Low Prices

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Posted on 15 November 2017 | 12:10 am

Why Are Testosterone Booster Beneficial?

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Posted on 14 November 2017 | 12:10 am

Researchers camouflage an optical chip rendering it invisible

Ben-Gurion University of the Negev (BGU) researchers have achieved a breakthrough in manipulating light to render an object, such as an optical chip, invisible.

Posted on 13 November 2017 | 8:47 pm

Mirror image: Researchers create higher-quality pictures of biospecimens

Researchers from the National Institutes of Health and the University of Chicago improved the speed, resolution, and light efficiency of an optical microscope by switching from a conventional glass coverslip to a reflective, mirrored coverslip and applying new computer algorithms to process the resulting data.

Posted on 13 November 2017 | 10:00 am

You Can Now Improve Your Business Marketing

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Posted on 13 November 2017 | 5:06 am

Purchase The Best Cowboy Boots For Women Available For You

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Posted on 13 November 2017 | 12:10 am

The path length of light in opaque media

A seemingly paradoxical prediction in physics has now been confirmed in an experiment: No matter whether an object is opaque or transparent, the average length of the light's paths through the object is always the same.

Posted on 10 November 2017 | 2:48 pm

Super-resolution photoacoustic imaging could allow scientists to watch blood vessels with improved resolution

Researchers have reported an approach to photoacoustic imaging that offers vastly improved resolution, setting the stage for detailed in vivo imaging of deep tissue. The technique is based on computational improvements, so it can be performed with existing imaging hardware, and thus could provide a practical and low-cost option for improving biomedical imaging for research and diagnostics.

Posted on 9 November 2017 | 3:00 pm

Electronics and optics on one chip

Electronics and light don't go well together on a standard "CMOS' chip. Researcher Satadal Dutta of the University of Twente now succeeds in introducing a light connection into the heart of a semiconductor chip. In this way, two circuits can be isolated and still communicate. Or: the worlds of electronics and photonics are connected.

Posted on 9 November 2017 | 1:09 pm

Wireless handheld spectrometer transmits data to smartphone

Spectral images, which contain more color information than is obtainable with a typical camera, reveal characteristics of tissue and other biological samples that can't be seen by the naked eye. A new smartphone-compatible device that is held like a pencil could make it practical to acquire spectral images of everyday objects and may eventually be used for point-of-care medical diagnosis in remote locations.

Posted on 8 November 2017 | 4:45 pm

Researchers develop flexible, stretchable photonic devices

Researchers at MIT and several other institutions have developed a method for making photonic devices—similar to electronic devices but based on light rather than electricity—that can bend and stretch without damage. The devices could find uses in cables to connect computing devices, or in diagnostic and monitoring systems that could be attached to the skin or implanted in the body, flexing easily with the natural tissue.

Posted on 8 November 2017 | 11:39 am

New approach uses light instead of robots to assemble electronic components

An international team of researchers has developed a new light-based manipulation method that could one day be used to mass produce electronic components for smartphones, computers and other devices. A cheaper and faster way to produce these components could make it less expensive to connect everyday objects—from clothing to household appliances—to the internet, advancing the concept known as the Internet of Things. The micromanipulation technique might also be used to create a safer and faster-charging replacement for mobile device batteries.

Posted on 7 November 2017 | 5:28 pm

New algorithm expands use of advanced camera for biological microscopy

A new computer algorithm allows scientists to use a high-performance sensor technology, called scientific complementary metal-oxide semiconductor cameras, for a wide range of biological research.

Posted on 7 November 2017 | 11:40 am

Novel nano-CT device creates high-resolution 3-D X-rays of tiny velvet worm legs

Computer tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a nano-CT device that creates three-dimensional X-ray images at resolutions up to 100 nanometers. Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht, the researchers have analyzed the locomotory system of a velvet worm.

Posted on 7 November 2017 | 10:36 am

Beyond good vibrations: New insights into metamaterial magic

If invisibility cloaks and other gee-whiz apps are ever to move from science fiction to science fact, we'll need to know more about how these weird metamaterials actually work. Michigan Tech researcher Elena Semouchkina has gone back to basics and shed more light on the physics behind the magic.

Posted on 6 November 2017 | 9:38 pm

Diffused light shows clear structures

Scientists gain an insight into the fascinating world of atoms and molecules using x-ray microscopes. Ground-breaking research by physicists at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), the Deutsches Elektronen Synchrotron (DESY) in Hamburg, and the University of Hamburg has paved the way towards new imaging techniques. The team of scientists have successfully developed and tested a method which is considerably more effective than conventional procedures. The researchers' findings have recently been published in Nature Physics.

Posted on 6 November 2017 | 3:41 pm

Researchers develop milestone for ultra-fast communications and computing

A mineral discovered in Russia in the 1830s known as a perovskite holds a key to the next step in ultra-high-speed communications and computing.

Posted on 6 November 2017 | 12:07 pm

Synthetic material acts like an insect cloaking device

Synthetic microspheres with nanoscale holes can absorb light from all directions across a wide range of frequencies, making them a candidate for antireflective coatings, according to a team of Penn State engineers. The synthetic spheres also explain how the leaf hopper insect uses similar particles to hide from predators in its environment.

Posted on 3 November 2017 | 2:44 pm

Cicada wings help researchers design better solar cells

(—Researchers have turned to cicada wings to design surfaces with highly antireflective properties, which have potential applications for solar cells, stealth surfaces, antifogging materials, and other optical applications.

Posted on 3 November 2017 | 2:30 pm

Research team develops optical diagnostic that helps improve fuel economy while reducing emissions

A new optical device at Sandia National Laboratories that helps researchers image pollutants in combusting fuel sprays might lead to clearer skies in the future.

Posted on 3 November 2017 | 1:59 pm

Optoelectronics without glass

Researchers at ETH Zurich have developed the first opto-electronic circuit component that works without glass and is instead made of metal. The component, referred to as a modulator, converts electrical data signals into optical signals. It is smaller and faster than current modulators, and much easier and cheaper to make.

Posted on 3 November 2017 | 1:12 pm

Metasurface generates new states of light for fundamental research and applications

There's nothing new thing under the sun—except maybe light itself.

Posted on 2 November 2017 | 7:00 pm

Chip-based sensors with incredible sensitivity

In London's St. Paul's Cathedral, a whisper can be heard far across the circular whispering gallery as the sound curves around the walls. Now, an optical whispering gallery mode resonator developed by Penn State electrical engineers can spin light around the circumference of a tiny sphere millions of times, creating an ultrasensitive microchip-based sensor for multiple applications.

Posted on 2 November 2017 | 4:52 pm

Ions in the spotlight

The results of a research group from the Institute of Physics at the University of Freiburg has been given a special place in Nature Photonics. An accompanying "News & Views" article in the print version of the science journal highlights the work of the team led by Alexander Lambrecht, Julian Schmidt, Dr. Leon Karpa and Prof. Dr. Tobias Schätz. In their article "Long lifetimes and effective isolation of ions in optical and electrostatic traps," the work group describes the method they used to prevent the previously unavoidable driven motion of trapped charged atoms.

Posted on 2 November 2017 | 3:28 pm

Nanoscale 'abacus' uses pulses of light instead of wooden beads to perform calculations

The quest to develop ever-faster and more powerful computers has led to one of the most rudimentary methods of counting being given a 21st century make-over.

Posted on 2 November 2017 | 11:00 am