A new imaging technique makes it possible to precisely digitize clear objects and their surroundings, an achievement that has eluded current state-of-the-art 3D rendering methods. The ability to create detailed, 3D digital versions of real-world objects and scenes can be useful for movie production, creating virtual reality experiences, improving design or quality assurance in the production of clear products and even for preserving rare or culturally significant objects.
Posted on 21 September 2017 | 7:11 pm
Transparent particles with extraordinarily high refractive indices can become almost invisible at wavelengths longer than the particle size, an A*STAR-led theoretical study has shown. The discovery challenges the accepted wisdom around the limits of light scattering and visibility, and could lead to a new class of 'invisible' materials.
Posted on 20 September 2017 | 11:30 am
Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a phenomenon similar to an effect observed in circular galleries, such as in some cathedrals or museums, where sound waves travel across the gallery and are reflected and refocused tightly enough that a whisper on one side can be heard on the other.
Posted on 19 September 2017 | 8:18 pm
Fluorescence microscopy gives researchers incredible power to illuminate the tiniest structures and capture the real-time activities of live cells by tagging biological molecules with a veritable rainbow of fluorescent dyes. This power comes at a cost: The technology can be expensive and time-consuming and, so far, has resisted attempts at automation.
Posted on 19 September 2017 | 5:05 pm
Light travels fast – sometimes a little too fast when it comes to data processing.
Posted on 19 September 2017 | 11:48 am
Researchers from the Moscow Institute of Physics and Technology and the University of Siegen have explained the mechanism of single-photon generation in diamond diodes. Their findings, published in Physical Review Applied, offer new avenues for the development of high-speed single-photon sources for quantum communication networks and quantum computers of the future.
Posted on 19 September 2017 | 10:00 am
Today, electrical bistable devices are the foundation of digital electronics, serving as building blocks of switches, logic gates and memories in computer systems. However, the bandwidth of these electronic computers is limited by the signal delay of time constants important to electronic logic operations. In an attempt to mitigate these problems, scientists have considered the development of an optical digital computer, and one team has gone so far as to demonstrate the optical and electrical bistability for switching in a single transistor.
Posted on 18 September 2017 | 8:07 pm
Two-dimensional materials called molecular aggregates are very effective light emitters that work on a different principle than typical organic light-emitting diodes (OLEDs) or quantum dots. But their potential as components for new kinds of optoelectronic devices has been limited by their relatively slow response time. Now, researchers at MIT, the University of California at Berkeley, and Northeastern University have found a way to overcome that limitation, potentially opening up a variety of applications for these materials.
Posted on 18 September 2017 | 4:26 pm
Decades ago, the Moore's law predicted that the number of transistors in a dense integrated circuit doubles approximately every two years. This prediction was proved to be right in the past few decades, and the quest for ever smaller and more efficient semiconductor devices have been a driving force in breakthroughs in the technology.
Posted on 18 September 2017 | 2:12 pm
A new microscope can capture 3-D images of live organisms in real time. It's called the QIs-scope, an innovation from a spinoff of Universidad Carlos III de Madrid (UC3M), 4D Nature. The microscope can be used in biomedical research or to improve clinical diagnosis procedures.
Posted on 18 September 2017 | 1:10 pm
Photonics is a rapidly growing field in which some of the most sci-fi ideas of the not-so-distant past, are taking form. Now EU-funded research is bringing the notion of an invisibility cloak closer by using microscopic structures that can bend light.
Posted on 18 September 2017 | 11:35 am
Researchers at the University of Sydney have dramatically slowed digital information carried as light waves by transferring the data into sound waves in an integrated circuit, or microchip.
Posted on 18 September 2017 | 9:00 am
When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole behind. For a long time, scientists have suspected that the liberated electron and the positively charged hole form a new kind of quasiparticle—known as 'core-exciton'. But so far, there has not yet been a real proof of its existence. Scientists have a wide range of tools to track excitons in semiconductors in real-time. Those are generated by ordinary light, and can be employed in various applications in optoelectronics and microelectronics. On the contrary, core-excitons are extremely short-lived, and up to now, no technique was available to track their motion and deduce their properties.
Posted on 16 September 2017 | 8:32 am
The world of nanosensors may be physically small, but the demand is large and growing, with little sign of slowing. As electronic devices get smaller, their ability to provide precise, chip-based sensing of dynamic physical properties such as motion become challenging to develop.
Posted on 15 September 2017 | 9:32 pm
A Sandia National Laboratories-led team has for the first time used optics rather than electronics to switch a nanometer-thick thin film device from completely dark to completely transparent, or light, at a speed of trillionths of a second.
Posted on 14 September 2017 | 3:22 pm
The performance of white LEDs can be improved, based on better knowledge of the absorption and scattering of light inside the LED. A new method, developed by the University of Twente in The Netherlands and Philips Lighting, can lead to efficiency improvement and powerful design tools.
Posted on 14 September 2017 | 11:39 am
Researchers have developed new software that makes it possible to use low-cost, thermal cameras attached to mobile phones to track how fast a person is breathing. This type of mobile thermal imaging could be used for monitoring breathing problems in elderly people living alone, people suspected of having sleep apnea or babies at risk for sudden infant death syndrome (SIDS).
Posted on 13 September 2017 | 4:32 pm
Researchers at Ben-Gurion University of the Negev (BGU) have developed miniaturized hyperspectral technology as an add-on for a standard camera that will generate superior quality images and video faster and at a lower cost than currently available commercial devices.
Posted on 13 September 2017 | 1:44 pm
How do we make an object invisible? Researchers from TU Wien (Vienna), together with colleagues from Greece and the USA, have now developed a new idea for a cloaking technology. A completely opaque material is irradiated from above with a specific wave pattern – with the effect that light waves from the left can now pass through the material without any obstruction. This surprising result opens up completely new possibilities for active camouflage. The idea can be applied to different kinds of waves, it should work with sound waves just as well as with light waves. Experiments are already in the planning.
Posted on 13 September 2017 | 11:35 am
As scientist probe nature ever more precisely with laser pulses, now aiming for the zeptosecond regime - a trillionth of a billionth of a second and the fastest scale of time measured - optimizing each parameter of those pulses can offer more finely tuned measurements of as-yet unknown dynamic properties. The laser wavelength, duration and energy of each pulse, and rate at which pulses are produced are all key factors in observing dynamics such as the real-time electron motions of single molecules together with the motion of consistituent atoms.
Posted on 11 September 2017 | 4:28 pm
Scientists from the University of Basel's Department of Physics and the Swiss Nanoscience Institute have succeeded in dramatically improving the quality of individual photons generated by a quantum system. The scientists have successfully put a 10-year-old theoretical prediction into practice. With their paper, published recently in Physical Review X, they have taken an important step towards future applications in quantum information technology.
Posted on 11 September 2017 | 1:22 pm
In a joint research project, scientists from the Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy (MBI), the Technische Universität Berlin (TU) and the University of Rostock have managed for the first time to image free nanoparticles in a laboratory experiment using a high-intensity laser source. Previously, the structural analysis of these extremely small objects via single-shot diffraction was only possible at large-scale research facilities using so-called XUV and x-ray free electron lasers. Their pathbreaking results facilitate the highly-efficient characterisation of the chemical, optical and structural properties of individual nanoparticles and have just been published in Nature Communications. The lead author of the publication is junior researcher Dr Daniela Rupp who carried out the project at TU Berlin and is now starting a junior research group at MBI.
Posted on 8 September 2017 | 1:50 pm
Fabricating hybrid semiconductor lasers on materials other than the commonly used silicon-on-insulator (SOI) substrates has proved challenging. Now, A*STAR researchers have developed an innovative technique that can integrate the lasers on to a range of different materials.
Posted on 8 September 2017 | 11:08 am
Conventional electron accelerators have become an indispensable tool in modern research. The extremely bright radiation generated by synchrotrons, or free electron lasers, provides unique insights into matter at the atomic level. But even the smallest versions of these super-microscopes are the size of a soccer field. Laser plasma acceleration could offer an alternative. With a much smaller footprint and much higher peak currents, it could be the basis for the next generation of compact light sources. So far, the challenge with laser accelerators has been to create a reliable and stable electron beam, which is the prerequisite for possible applications. Physicists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) have now developed a method to increase both beam stability and quality.
Posted on 8 September 2017 | 10:35 am
Researchers have developed a new remote sensing instrument based on light detection and ranging (LIDAR) that could offer a simple and robust way to accurately measure wind speed. The detailed, real-time wind measurements could help scientists to better understand how hurricanes form and provide information that meteorologists can use to pinpoint landfall earlier, giving people more time to prepare and evacuate.
Posted on 6 September 2017 | 3:08 pm
Thanks to a new technique developed at EPFL, optical diffraction gratings can now be made out of pure diamond, with their surfaces smoothed down to the very last atom. These new devices can be used to alter the wavelength of high-powered lasers or in cutting-edge spectrographs.
Posted on 5 September 2017 | 9:45 am
Scientists have developed a camera that can see through the human body. The camera is designed to help doctors track medical tools known as endoscopes that are used to investigate a range of internal conditions.
Posted on 4 September 2017 | 12:40 pm
You can't hear most of them, but the world is running on different kinds of mechanical oscillations. For example, inside the average electronic wristwatch is a sealed canister containing a 3 mm long quartz crystal resonator. In response to electrical feedback, the crystal continuously vibrates about 33,000 times per second. The remarkable stability of that resonance frequency, which provides the clock's "tick" rate, keeps you on time.
Posted on 31 August 2017 | 11:40 am
A butterfly's wings and a peacock's feathers use nanoscale architecture to bend light and produce brilliant colors without pigments or dyes, and scientists have been trying to emulate nature's design.
Posted on 31 August 2017 | 11:22 am
When it comes to solar cells, less is more—the less their surfaces reflect a sun's rays, the more energy can be generated. A typical fix to the problem of reflectivity is an anti-reflective coating, but that might not always be the best solution, depending on the application.
Posted on 31 August 2017 | 11:21 am
LED screens are now very common as business carrier in cities. And the LED display in Mall Taman Anggrek Jakarta, Indonesia is the largest in the world by now. [Read more...]
Posted on 13 May 2015 | 10:09 am
Sanan Optoelectronics Co., Ltd disclosured its first quarter report in 21th evening April, that the company achieved revenues of 927 million yuan (about US$ 149.58 million dollar), an increase of 12.65% as the same period of last year's 823 million yuan (about US$ 132.80 million dollar). [Read more...]
Posted on 22 April 2015 | 3:36 am
American Lighting manufacturers Global Lighting Technologies (GLT) has developed ultra-thin LED panel light which adopts light guiding panel. The size of the lighting panel is 4 inches (about 10cm), thickness is 3.5mm, and the luminous efficiency is 115lm/W,which is in high level among the light guiding panel. [Read more...]
Posted on 18 April 2015 | 9:38 am
In Warsaw Poland, to enhance people's awareness of environmental protection, Luzinterruptus held a 12-hour charity called Recycling Sunday by using plastic bags, the activity brought thousands of luminous plastic bags which scattered in the square. [Read more...]
Posted on 17 April 2015 | 7:14 am
Samsung Display split the LCD panel and OLED business into two divisions again, it seems that Samsung want to assign professionals for the two departments, and boost marketing capabilities, the market rumors that Samsung intends to rebuild its OLED TV business. [Read more...]
Posted on 6 April 2015 | 10:00 am
Recently, Philips revealed its intelligent lighting "Hue" series will add a new member - "Hue Go". This new product with bowl shapes, but it not only a bowl, same with the previous Hue series, it can be connected to the phone associated with the APP. [Read more...]
Posted on 5 April 2015 | 8:07 am
Philips officially announced on 31st March that 80.1% of the Lumileds shares have been acquired by GO Scale Capital, Philips will retain the remaining 19.9% stake. GO Scale Capital is a new investment fund sponsored by GSR Ventures and Oak Investment Partners. The consortium partners are Asia Pacific Resource Development, Nanchang Industrial Group and GSR Capital. [Read more...]
Posted on 2 April 2015 | 8:19 am
The United States, Canada and Australia always provide comfortable environment for Children's Hospitals, and the Oklahoma hospital installed a kite LED lamps to provide cozy lighting for little patient. [Read more...]
Posted on 27 March 2015 | 10:26 am
Recently, Samsung intends to merge LED production lines "Line 3" and "SR line" together to "Line 5" which is located in Gyeonggi-do. Line 5 was originally responsible for production of Samsung's semiconductor products, but the company decides to convert it to LED chip production line, it mainly produces 4-inch and 8-inch products. [Read more...]
Posted on 18 March 2015 | 9:21 am
P Narayana, the Minister of Municipal Administration Department said at the LED manufacturing National Conference that "Chief Minister N Chandrababu Naidu set a goal to install energy-efficient LED lighting systems in 110 streets and private companies at the end of June." [Read more...]
Posted on 13 March 2015 | 3:56 am