Photonics and LED Lighting News

Researchers use sound waves to advance optical communication

Illinois researchers have demonstrated that sound waves can be used to produce ultraminiature optical diodes that are tiny enough to fit onto a computer chip. These devices, called optical isolators, may help solve major data capacity and system size challenges for photonic integrated circuits, the light-based equivalent of electronic circuits, which are used for computing and communications.

Posted on 22 January 2018 | 4:00 pm

A stopwatch for nanofluids: NIST files provisional patent for microflowmeter

The National Institute of Standards and Technology (NIST) has filed a provisional patent application for a microflow measurement system, about the size of a nickel, that can track the movement of extremely tiny amounts of liquids—as small as nanoliters (nL, billionth of a liter) per minute. If water were flowing at that rate from a 1-liter bottle of water, it would take about 200 years to drain.

Posted on 19 January 2018 | 4:02 pm

Need To Stay Updated With Technology News

Are you finding the technology news? Well, if yes then NoSurvey is the best website which can help you in collecting news on technology. Whether there are so many other websites are also available but when we talk about those which are offering trustable news the list becomes shorter and shorter. It is the best ...

Posted on 19 January 2018 | 1:27 am

How To Choose Right Electric Shaver?

No doubt, electric shaver proved beneficial to millions of people due to its quick use and effective shaving anytime, anywhere. There are basically, two types of shavers, first one is electric shaver have an electric cord for electricity and the second thing is based on battery. The portability of using battery based shaver increase their ...

Posted on 19 January 2018 | 12:10 am

New instrument lets doctors view the entire eye with unprecedented level of detail

Researchers have developed the first instrument that can provide a detailed image of the entire eye. By incorporating a lens that changes optical parameters in response to an electric current, the innovative technology can produce higher quality images than currently available and could make eye examinations faster and more comfortable for patients by avoiding the need to undergo imaging with multiple instruments to look at different areas of the eye.

Posted on 18 January 2018 | 3:00 pm

Researchers at Sandia work on new way to image brain

Sandia National Laboratories researchers want to use small magnetic sensors to image the brain in a way that's simpler and less expensive than the magnetoencephalography system now used.

Posted on 18 January 2018 | 2:55 pm

Drastic phase changes in topologically engineered planar absorbers improve sensitivity of optical sensors

Non-invasive optical temperature sensing is essential for remote monitoring of fabrication processes, in situations where the sample needs to be insulated from the environment, at extreme or rapidly changing temperatures, and in the presence of strong and varying magnetic fields. Optical temperature sensors measure frequency shifts of optical resonances and often require long optical paths to compensate for very small thermo-optical coefficients of materials.

Posted on 18 January 2018 | 1:45 pm

The world's first all-silicon laser

Integrated silicon photonics incorporates microelectronics and optoelectronics, a combination expected to revolutionize a variety of fields such as communication, sensing, lighting, displays, imaging and detection. Silicon lasers are the key to achieve integrated silicon photonics. However, the optical gains of silicon are lower than those of III-V compound semiconductors by one order of magnitude or two, due to its indirect bandgap feature. Although the fabrication of matured III-V compound lasers on silicon substrates has been proposed to circumvent this problem, the development of all-silicon laser is desired for integrated silicon photonics due to better compatibility with modern silicon techniques.

Posted on 18 January 2018 | 10:33 am

Make The Best Investments Today

Everyone is looking for popular methods in order for them to increase their savings and get high returns on their investment. It is essential to plan for the future and if you are keen on taking up a method of investment that can give you good benefits then you need to consider the best nova ...

Posted on 18 January 2018 | 4:29 am

Ultra-thin optical fibers offer new way to 3-D print microstructures

For the first time, researchers have shown that an optical fiber as thin as a human hair can be used to create microscopic structures with laser-based 3D printing. The innovative approach might one day be used with an endoscope to fabricate tiny biocompatible structures directly into tissue inside the body. This capability could enable new ways to repair tissue damage.

Posted on 17 January 2018 | 3:15 pm

Make The Most Of Your Toothbrush

It is important to keep your teeth clean at all times. When you avoid dental hygiene or when you ignore small problems that have occurred this could lead to something larger and it could not only end up causing you a lot of pain and it will also leave you with a very expensive medical ...

Posted on 16 January 2018 | 12:10 am

Types Of Car Insurance

As there are different types of car insurance, you will have to choose the right type and get the right type of coverage. Liability Insurance If you are involved in a car accident that has occurred due to your own fault or negligence, the liability insurance will help you to bear the repairing cost to ...

Posted on 14 January 2018 | 2:09 pm

Get Your Car In The Best Of Health

There are a number of car body shops that you’ll find in your area, however most of these shops are all out to overcharge their clients and it’s important for you to find a reliable service station that will provide you with some of the most effective solutions at affordable prices. If you want to ...

Posted on 13 January 2018 | 12:10 am

The Home Security System Needs To Be The Best

Do you still have to go to each room in your house to turn off the lights? Are you constantly worried about your child’s safety while you are at work? Then it is time you considered changing your life for good. Adt home security systems can help your life take a 360 degree turn and ...

Posted on 13 January 2018 | 12:10 am

Satisfy Your Partner Like Never Before

It’s a myth all over the world that only men derive pleasure from sex. Throughout most women fear that sex is more painful than pleasurable. Men on the other hand crave to indulge in sex mostly because the grip their penis gets during sex is amazing. Many people believe that vaginal sex better as compared ...

Posted on 13 January 2018 | 12:10 am

Picture Framing Dubai by Maloto Frames

Picking out a company of business to do your picture framing Dubai may sound easy, but with the sheer number of available people or companies to do the work and each with their specialization, it can be a difficult choice. A lot of things have to be considered, like the expertise of the business, their ...

Posted on 12 January 2018 | 12:21 pm

Connect With Nature On This Trek

Planning a vacation is confusing since there are so many places to visit. One of the safest ways to plan a perfect holiday is by taking a trekking tour. Most of the trekking tours cover up different destinations and you’ll manage to check out new places if you hop on one of the sapa trekking ...

Posted on 12 January 2018 | 12:10 am

Pulses of light to encrypt data and protect security of cryptocurrencies

Data travels through thousands of miles of fiber optic cables underneath the world's oceans—via pulses of light. And according to experts, the data in these cables is at great risk of being intercepted. However, a newly designed frequency comb—recently developed by researchers at the USC Viterbi School of Engineering might be an effective tool for data encryption.

Posted on 11 January 2018 | 5:58 pm

Scientists manage to observe the inner structure of photonic crystals

With the help of electronic microscopy, scientists have tracked defects in the surface of two-dimensional photonic crystals. But there are difficulties with bulk photonic crystals. There is no way for scientists to research the interiors of these unusual crystals. So scientists have been searching for a method to better measure these crystals for some time.

Posted on 10 January 2018 | 11:20 am

Device creates negative mass—and a novel way to generate lasers

Most objects react in predictable ways when force is applied to them—unless they have "negative mass." And then they react exactly opposite from what you would expect.

Posted on 10 January 2018 | 11:16 am

Multiphoton interference observed beyond coherence time

For the first time, scientists have experimentally demonstrated how multiphoton interference with thermal light can be observed beyond the coherence time, paving the way to a possible new range of applications in high-precision sensing.

Posted on 3 January 2018 | 11:38 am

Nature's smallest rainbows, created by peacock spiders, may inspire new optical technology

Brightly colored Australian peacock spiders (Maratus spp.) captivate even the most arachnophobic viewers with their flamboyant courtship displays featuring diverse and intricate body colorations, patterns, and movements - all packed into miniature bodies measuring less than 5 mm in size for many species. However, these displays aren't just pretty to look at, they also inspire new ways for humans to produce color in technology.

Posted on 3 January 2018 | 8:16 am

Single metalens focuses all colors of the rainbow in one point; opens new possibilities in virtual, augmented reality

Metalenses—flat surfaces that use nanostructures to focus light—promise to revolutionize optics by replacing the bulky, curved lenses currently used in optical devices with a simple, flat surface. But, these metalenses have remained limited in the spectrum of light they can focus well. Now a team of researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) has developed the first single lens that can focus the entire visible spectrum of light—including white light—in the same spot and in high resolution. This has only ever been achieved in conventional lenses by stacking multiple lenses.

Posted on 1 January 2018 | 4:00 pm

Highly efficient, high-power short-pulse lasers based on Tm3+ doped materials

Highly efficient high power short pulse lasers at the wavelength range of 2 µm based on Tm3+ doped materials have a variety of applications such as material processing, LiDAR, mid-infrared OPOs for wavelengths up to 12 μm, or mid-infrared supercontinuum generation. They also would enable direct coherent soft X-ray generation by high order harmonics generation.

Posted on 28 December 2017 | 11:36 am

Alternative fabrication scheme for microscale semiconductor lasers

A systematic study of a simple and general structure for on-chip semiconductor lasers by A*STAR researchers sets the scene for much broader application of integrated semiconductor lasers beyond conventional silicon-based systems.

Posted on 22 December 2017 | 12:21 pm

Researchers demonstrate high-quality optical microstructures using lithium niobate

If the epicenter of the electronics revolution is named after the material that made it possible—silicon?— then the birthplace of the photonics revolution may well be named after lithium niobate. While Lithium Niobate Valley doesn't have the same ring as Silicon Valley, this material could be for optics what silicon was for electronics.

Posted on 21 December 2017 | 7:15 pm

New lensless camera creates detailed 3-D images without scanning

Researchers have developed an easy-to-build camera that produces 3D images from a single 2D image without any lenses. In an initial application of the technology, the researchers plan to use the new camera, which they call DiffuserCam, to watch microscopic neuron activity in living mice without a microscope. Ultimately, it could prove useful for a wide range of applications involving 3D capture.

Posted on 21 December 2017 | 3:00 pm

Micro-spectrometer opens door to a wealth of new smartphone functions

Use your smartphone to check how clean the air is, whether food is fresh or a lump is malignant. This has all come a step closer thanks to a new spectrometer that is so small it can be incorporated easily and cheaply in a mobile phone. The little sensor developed at TU Eindhoven is just as precise as the normal tabletop models used in scientific labs. The researchers present their invention on 20 December in the journal Nature Communications.

Posted on 20 December 2017 | 2:20 pm

Using the dark side of excitons for quantum computing

To build tomorrow's quantum computers, some researchers are turning to dark excitons, which are bound pairs of an electron and the absence of an electron called a hole. As a promising quantum bit, or qubit, it can store information in its spin state, analogous to how a regular, classical bit stores information in its off or on state. But one problem is that dark excitons do not emit light, making it hard to determine their spins and use them for quantum information processing.

Posted on 20 December 2017 | 2:19 pm

LLNL-developed Petawatt Laser Installed at ELI Beamlines

The L3-HAPLS advanced petawatt laser system was installed last week at the ELI Beamlines Research Center in Dolní Břežany, Czech Republic. L3-HAPLS – the world's most advanced and highest average power, diode-pumped petawatt laser system—was designed, developed and constructed in only three years by Lawrence Livermore National Laboratory's (LLNL) NIF and Photon Science (NIF&PS) Directorate and delivered to ELI Beamlines in June 2017.

Posted on 20 December 2017 | 12:07 pm

Engineers produce breakthrough sensor for photography, life sciences, security

Engineers from Dartmouth's Thayer School of Engineering have produced a new imaging technology that may revolutionize medical and life sciences research, security, photography, cinematography and other applications that rely on high quality, low light imaging.

Posted on 18 December 2017 | 2:46 pm

Discovery could reduce cost, energy for high-speed Internet connections

Breakthrough research from The University of Texas at Arlington and The University of Vermont could lead to a dramatic reduction in the cost and energy consumption of high-speed internet connections.

Posted on 15 December 2017 | 8:13 pm

A shoe-box-sized chemical detector

A chemical sensor prototype developed at the University of Michigan will be able to detect "single-fingerprint quantities" of substances from a distance of more than 100 feet away, and its developers are working to shrink it to the size of a shoebox.

Posted on 15 December 2017 | 5:10 pm

Researchers taking optical device out of the lab and into the clinic to detect cancer at its earliest stages

In a paper published in Nature Scientific Reports, a team of researchers at Worcester Polytechnic Institute (WPI) has demonstrated how a device that uses beams of light to grip and manipulate tiny objects, including individual cells, can be miniaturized, opening the door to creating portable devices small enough to be inserted into the bloodstream to trap individual cancer cells and diagnose cancer in its earliest stages.

Posted on 14 December 2017 | 6:27 pm

Advance in light filtering technology has implications for LCD screens, lasers and beyond

Vector polarizers are a light filtering technology hidden behind the operation of many optical systems. They can be found, for instance, in sunglasses, LCD screens, microscopes, microprocessors, laser machining and more. Optical physicists from Nanjing and Nankai University, China, and the University of Central Florida, U.S., published details of their new vector polarizer design this week in APL Photonics. The newly proposed design is a major advance in polarization technology because it enables flexible filtering of a wide range of light sources and generation of new light states.

Posted on 13 December 2017 | 5:29 pm

New type of smart windows use liquid to switch from clear to reflective

Researchers have demonstrated prototype windows that switch from reflective to clear with the simple addition of a liquid. The new switchable windows are easy to manufacture and could one day keep parked cars cool in the sun or make office buildings more energy efficient. The technology can also be used to make roof panels that keep houses cool in the summer and warm in the winter.

Posted on 13 December 2017 | 4:21 pm

Visualizing single molecules in whole cells with a new spin

Cell biologists traditionally use fluorescent dyes to label and visualize cells and the molecules within them under a microscope. With different super-resolution microscopy methods, they can even light up single molecules and their complex interactions with one another. However, the microscopy hardware that allows them to do this is highly specialized and expensive and hence, relatively rare in laboratories around the world, and the operation of such microscopes is daunting, as it requires unique skills.

Posted on 12 December 2017 | 7:35 pm

Long-lived storage of a photonic qubit for worldwide teleportation

Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor Gerhard Rempe at the Max Planck Institute of Quantum Optics (MPQ) have now achieved a major breakthrough: they demonstrated the long-lived storage of a photonic qubit on a single atom trapped in an optical resonator. The coherence time of the stored quantum bit outlasts 100 milliseconds and therefore matches the requirement for the creation of a global quantum network in which qubits are directly teleported between end nodes. "The coherence times that we achieve represent an improvement by two orders of magnitude compared to the current state-of-the-art," says Professor Rempe. The study is published in Nature Photonics today.

Posted on 12 December 2017 | 2:10 pm

High-speed communication systems based on ultraviolet radiation

Military and civil authorities could benefit from secure optical communication systems that use light to carry messages between moving vehicles. Researchers at KAUST have now demonstrated rapid data transfer using ultraviolet-B (UV-B) light, which provides many advantages over visible light.

Posted on 12 December 2017 | 1:30 pm

Water without windows: Capturing water vapor inside an electron microscope

The inside of an electron microscope, which requires vacuum levels similar to those encountered in outer space, can be an extremely inhospitable place for organic materials. Traditionally, life scientists have circumvented this problem by freezing their specimens so that that they can be safely loaded into a microscope. Now, researchers at the Okinawa Institute of Science and Technology Graduate University (OIST) have devised a new approach to imaging organic compounds.

Posted on 12 December 2017 | 1:09 pm