Photonics and LED Lighting News

Scientists produce 3-D chemical maps of single bacteria

Scientists at the National Synchrotron Light Source II (NSLS-II)—a U.S. Department of Energy (DOE) Office of Science User Facility at DOE's Brookhaven National Laboratory—have used ultrabright x-rays to image single bacteria with higher spatial resolution than ever before. Their work, published in Scientific Reports, demonstrates an X-ray imaging technique, called X-ray fluorescence microscopy (XRF), as an effective approach to produce 3-D images of small biological samples.

Posted on 16 November 2018 | 3:31 pm

Terahertz laser pulses amplify optical phonons in solids

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg/Germany presents evidence of the amplification of optical phonons in a solid by intense terahertz laser pulses. These light bursts excite atomic vibrations to very large amplitudes, where their response to the driving electric field becomes nonlinear and conventional description fails to predict their behavior.

Posted on 15 November 2018 | 2:50 pm

Physicists discover new way of resonance tuning for nonlinear optics

A research team from ITMO University and the Australian National University has discovered that different metasurfaces exhibit the same behavior provided a symmetry breaking is introduced to their unit cells "meta-atoms." Asymmetry of meta-atoms results in high-quality (high Q) resonances in the transmittance spectra of metasurfaces. Such resonances are capable of multiple amplification of external signals. By manipulating the asymmetry, scientists were able to control the resonances and thus an optical response, which is highly desirable for practical applications. The results of this research were published in Physical Review Letters.

Posted on 14 November 2018 | 2:08 pm

Increasing CD and microchip storage capacity 100-fold

Research by Pierre Lucas could lead to computer memories that work more like human memories.

Posted on 13 November 2018 | 8:45 pm

Next-generation technology is coming to a self-driving car near you

Typically, navigation systems for autonomous cars use visible light to identify foreign objects. This works most of the time. But in misty, foggy, or rainy conditions, self-driving cars become a deer in headlights, largely unaware of upcoming obstacles. Scattered light confuses the car's system, thus blurring the distinction between real objects and reflections from the scattered light itself. Under these conditions, autonomous cars cannot recognize upcoming obstacles that would be easily identifiable to the human eye.

Posted on 7 November 2018 | 1:39 pm

Making steps toward improved data storage

A team of scientists has created the world's most powerful electromagnetic pulses in the terahertz range to control in fine detail how a data-storage material switches physical form. This discovery could contribute to scaled-down memory devices, eventually revolutionizing how computers handle information.

Posted on 7 November 2018 | 12:10 pm

New mobile device identifies airborne allergens using deep learning

UCLA researchers invented a portable device that uses holograms and machine learning to identify and measure airborne biological particles, or bioaerosols, that originate from living organisms such as plants or fungi. Trained to recognize five common allergens—pollen from Bermuda grass, oak, ragweed and spores from two types of mold—the system classified samples with an accuracy of 94 percent using deep learning.

Posted on 6 November 2018 | 12:33 pm

Physicists create new, simpler-than-ever quantum 'hard drive for light'

Physicists at the University of Alberta in Canada have developed a new way to build quantum memories, a method for storing delicate quantum information encoded into pulses of light.

Posted on 5 November 2018 | 5:50 pm

Laser architecture can create complex structures to probe, control matter

Lasers have a unique ability to precisely drive, manipulate, control, and probe matter utilizing an incredible variety of methods. While they often operate behind the scenes, lasers are the backbone of revolutionary science and technology—including research advances that were the basis for the 2018 Nobel Prize in Physics.

Posted on 5 November 2018 | 5:21 pm

New efficiency record set for perovskite LEDs

Researchers have set a new efficiency record for LEDs based on perovskite semiconductors, rivalling that of the best organic LEDs (OLEDs).

Posted on 5 November 2018 | 4:00 pm

Flying focus: Controlling lasers through time and space

Scientists have produced an extremely bright spot of light that can travel at any speed—including faster than the speed of light. Researchers have found a way to use this concept, called "flying focus," to move an intense laser focal point over long distances at any speed. Their technique includes capturing some of the fastest movies ever recorded.

Posted on 5 November 2018 | 3:31 pm

The Internet And Its Importance In Making Your Home A Smart Home

Innovation is quick progressing and a large portion of the headway today relies upon the web. Savvy home innovations additionally exceedingly rely upon the web and its smooth working. There has been a ton of promotion about brilliant home innovations and the manner in which it capacities and what the vast majority don’t understand is ...

Posted on 5 November 2018 | 3:37 am

Use Reliable Robux Generator

If you want to know how to get free Robux, you should think about using a Robux generator for it. However, you should make sure that you have a reliable Robux generator to use, and not just any generators you can find on the web. That could surely help you have the Robux you need, ...

Posted on 4 November 2018 | 3:47 pm

Ease Your Travels With The Best Ratchet Strap Available In The Market Today

Travelling can get daunting especially when you need to take a lot of luggage with you on a long journey. People are always worried about how they are going to keep their valuables safe and ensure that no damages are caused during the transit. Even when you have the best Movers and Packers the fear ...

Posted on 4 November 2018 | 12:09 pm

How Is It Beneficial To Have Green Tea?

Do you know that why people used to take green tea? Are you aware of the benefits of taking green tea? Have you ever bought it? Those people who are having some health issues but not taking green tea then you should read the post. Here we will talk about some of the positive effects ...

Posted on 3 November 2018 | 8:43 pm

Essential Things you need to Consider While Buying the Best Kitchen Faucet

If you are in the market to buying the right kitchen faucet, you will have to consider different aspects of it. In simple words, you will have to consider various things of kitchen faucet before choosing the right one according to your personal needs. It is no secret that there are different types of kitchen ...

Posted on 3 November 2018 | 9:21 am

Physicists upgrade cheap diode laser for use in precise measurements

Russian physicists have developed a method for drastically narrowing the emission spectrum of an ordinary diode laser, like that in a laser pointer. This makes their device a useful replacement for the more complex and expensive single-frequency lasers, enabling the creation of compact chemical analyzers that can fit into smartphones, cheap lidars for self-driving cars, as well as security and structural health monitoring systems on bridges, gas pipelines and elsewhere. The study was published Oct. 26 in Nature Photonicsand was co-authored by researchers from the Russian Quantum Center (RQC), the Moscow Institute of Physics and Technology (MIPT), Lomonosov Moscow State University (MSU), and Samsung R&D Institute Russia.

Posted on 2 November 2018 | 12:37 pm

New method could lead to more powerful quantum sensors

As quantum technology continues to come into its own, investment is happening on a global scale. Soon, we could see improvements in machine learning models, financial risk assessment, efficiency of chemical catalysts and the discovery of new medications.

Posted on 2 November 2018 | 12:28 pm

Features of Putlocker for free online movies

Nowadays online movies have taken the place of cinema entertainment. To the entertainment, you can watch online movies at your places such as home and office. Some people are watching movies during traveling. In traveling, you can enjoy a mobile phone by watching free online movies. You can watch free online movies without wastage of ...

Posted on 2 November 2018 | 11:54 am

New photonic devices are said to be poised to enable the next leap in deep space exploration

New directed energy propulsion systems may enable the first interstellar missions, with small, robotic spacecraft exploring neighboring solar systems, according to experimental cosmologist Philip Lubin. He will present these and other advances at The Optical Society's (OSA) Laser Congress, Light the Future Speaker Series, 4-8 Nov. in Boston.

Posted on 1 November 2018 | 7:21 pm

Atomic path from insulator to metal messier than thought

Researchers have peeked behind the curtain of the ultrafast phase transition of vanadium dioxide and found its atomic theatrics are much more complicated than they thought. It's a material that has fascinated scientists for decades for its ability to shift from being an electrical insulator to a conductor.

Posted on 1 November 2018 | 7:00 pm

NASA team investigates ultrafast laser machining for multiple spaceflight applications

An ultrafast laser that fires pulses of light just 100 millionths of a nanosecond in duration could potentially revolutionize the way that NASA technicians manufacture and ultimately assemble instrument components made of dissimilar materials.

Posted on 1 November 2018 | 5:13 pm

Using a crystal to link visible light to infrared opens a window on infrared sensing

A cheap, compact technique for analyzing samples at infrared wavelengths using visible-wavelength components could revolutionize medical and material testing.

Posted on 1 November 2018 | 1:20 pm

Reasons to have the joint pain supplements

Joints are the different part of your body. In the body part, the bones meet together and help to the body movement in joints. There are many body parts that are having the bones together such as elbows and shoulders. Now when we talk about the joint pain, it is creating the problems in the ...

Posted on 1 November 2018 | 7:49 am

Important biomedical microscopy technique can now image deeper into tissue

A recently developed technique known as light-sheet fluorescence microscopy has led to many biological discoveries by allowing researchers to create 3-D images of tissue, even live animal embryos, using fluorescent tags. Now, researchers report the ability to increase the imaging depth of light-sheet fluorescence microscopy with the use of an optical phenomenon known as three-photon absorption.

Posted on 31 October 2018 | 5:56 pm

What are the Benefits of Taking Palmitoylethanolamide?

Palmitoylethanolamide is a medical product that is used for severe pain. In other words, palmitoylethanolamide is the medicine that is used for pain management in the body. Actually, the name of this medical substance is PEA, which is a short form of palmitoylethanolamide. You may have the knowledge or not, but palmitoylethanolamide is a natural ...

Posted on 31 October 2018 | 5:20 pm

'Folded' optical devices manipulate light in a new way

The next generation of electronic devices, ranging from personal health monitors and augmented reality headsets to sensitive scientific instruments that would only be found in a laboratory, will likely incorporate components that use metasurface optics, according to Andrei Faraon, professor of applied physics in Caltech's Division of Engineering and Applied Science. Metasurface optics manipulate light similarly to how a lens might—bending, focusing, or reflecting it—but do so in a finely controllable way using carefully designed microscopic structures on an otherwise flat surface. That makes them both compact and finely tunable, attractive qualities for electronic devices. However, engineers will need to overcome several challenges to make them widespread.

Posted on 31 October 2018 | 1:22 pm

Electronic activity previously invisible to electron microscopes revealed

The chips that drive everyday electronic gadgets such as personal computers and smartphones are made in semiconductor fabrication plants. These plants employ powerful transmission electron microscopes. While they can see physical structures smaller than a billionth of a meter, these microscopes have no way of seeing the electronic activity that makes the devices function.

Posted on 30 October 2018 | 1:51 pm

Everything To Know About Shoe Inserts

Shoe inserts are often called foot orthosis. These Shoe inserts are used for many purposes like they used as daily wear comfort, overuse, foot relief from arthritis and injuries, etc. So, one should know and understand all things properly about these Shoes inserts or orthosis to make full and proper use of them. These Shoe ...

Posted on 29 October 2018 | 4:42 pm

Scientists debunk the effectiveness of EnChroma glasses for colorblind people

The recent commercialization of the EnChroma glasses has generated great expectations among the color blind thanks to a strong campaign on social networks and the media. Users of the glasses hoped to see new colors or even correct their color blindness.

Posted on 29 October 2018 | 1:03 pm

Why Should You Buy The TV Antennas?

In the old days people use antennas to enjoy the better quality images, but nowadays people think that antenna is not present. It is not true because antennas are still using and they are also beneficial for you. If you want to watch the local channels in high quality for free, then you must a ...

Posted on 29 October 2018 | 12:17 pm

A fine-tuned laser welds more effectively

Using laser technology Empa scientists optimized a technique to weld the electronics of implantable pacemakers and defibrillators into a titanium case. The medtech company Medtronic is now using the method worldwide to produce these devices.

Posted on 26 October 2018 | 1:45 pm

Light-bending tech shrinks kilometers-long radiation system to millimeter scale

The DESY accelerator facility in Hamburg, Germany, goes on for miles to host a particle making kilometer-long laps at almost the speed of light. Now researchers have shrunk such a facility to the size of a computer chip.

Posted on 26 October 2018 | 8:51 am

Team study breaks Forster resonant energy transfer (FRET) distance limit

Using engineered nanocomposite structures called metamaterials, a City College of New York-led research team reports the ability to measure a significant increase in the energy transfer between molecules. Reported in the journal ACS Photonics, this breakthrough breaks the Förster resonance energy transfer (FRET) distance limit of ~10-20 nanometers, and leads to the possibility of measuring larger molecular assemblies.

Posted on 25 October 2018 | 6:44 pm

Spinning the light: The world's smallest optical gyroscope

Gyroscopes are devices that help vehicles, drones, and wearable and handheld electronic devices know their orientation in three-dimensional space. They are commonplace in just about every bit of technology we rely on every day. Originally, gyroscopes were sets of nested wheels, each spinning on a different axis. But open up a cell phone today, and you will find a microelectromechanical sensor (MEMS), the modern-day equivalent, which measures changes in the forces acting on two identical masses that are oscillating and moving in opposite directions. These MEMS gyroscopes are limited in their sensitivity, so optical gyroscopes have been developed to perform the same function but with no moving parts and a greater degree of accuracy using a phenomenon called the Sagnac effect.

Posted on 25 October 2018 | 6:35 pm

Researchers develop small device that bends light to generate new radiation

University of Michigan physicists have led the development of a device the size of a match head that can bend light inside a crystal to generate synchrotron radiation in a lab.

Posted on 25 October 2018 | 12:31 pm

New air-filled fiber bundle could make endoscopes smaller

Researchers have fabricated a new kind of air-filled optical fiber bundle that could greatly improve endoscopes used for medical procedures like minimally invasive surgeries or bronchoscopies. The new technology might also lead to endoscopes that produce images using infrared wavelengths, which would allow diagnostic procedures that are not possible with endoscopes today.

Posted on 24 October 2018 | 7:05 pm

Groundbreaking new technology could allow 100-times-faster internet by harnessing twisted light beams

Broadband fiber-optics carry information on pulses of light, at the speed of light, through optical fibers. But the way the light is encoded at one end and processed at the other affects data speeds.

Posted on 24 October 2018 | 2:42 pm

Researchers demonstrate 'random, transistor' laser that can be manipulated at nanoscale

In the last half-century, laser technology has grown into a multi-billion-dollar global industry and has been used in everything from optical-disk drives and barcode scanners to surgical and welding equipment.

Posted on 23 October 2018 | 8:38 pm

Gas-detecting laser device gets an upgrade

University of Michigan researchers have refined a gas-sniffing device so that it can detect poisonous gases and explosives in less than half a second.

Posted on 23 October 2018 | 1:41 pm