then shine a light on them if theye a likely hazard (on or along the side of the roadway).
#New material combines photons for big solar energy gains An innovative new approach to solar energy from University of California Riverside could dramatically increase the amount of light available to contemporary solar panel designs.
They hope that by directing this newly fabricated light onto conventional solar panels, the efficiency of solar power could be improved greatly, for an affordable price.
and instead looked to make the light conform to the panels. They created an all-new hybrid material that takes two photons of 980-nanometer infrared light shone onto it and p convertsthem into one photon of 550-nanometer orange yellow light.
In general, this sort of research into the manipulation of light could allow a wider rollout of solar power around the world.
it should be possible to manufacture therapeutic drugs that could be activated with light, says co-principal investigator Michael R. Bruchas, associate professor of anesthesiology and neurobiology at Washington University in St louis. ith one of these tiny devices implanted,
and activate that drug with light as needed. This approach potentially could deliver therapies that are targeted much more
By activating brain cells with drugs and with light, the scientists are getting an unprecedented look at the inner workings of the brain.
If we want to influence an animal behavior with light or with a particular drug, we can simply point the remote at the animal
In other mice, shining a light directly onto brain cells expressing a light-sensitive protein prompted the release of dopamine,
therefore make them very efficient at absorbing light. The combination of light-absorbing properties with making metals water repellent could lead to more efficient solar absorbersolar absorbers that don rust
and do need not much cleaning. Guo team had blasted previously materials with the lasers and turned them hydrophilic,
particularly in light of the huge disease burden of malaria,"explained senior author Manoj Duraisingh, Ph d.,professor of Immunology and Infectious diseases at the T. H. Chan School of Public health."
Now, bioengineers at the University of California, Berkeley have developed new technology they believe will dramatically increase heating and cooling speeds with the switch of a light."
"The findings from this study were released today in Light: Science & Application through an article entitled ltrafast photonic PCR.
When exposed to light, the free electrons get excited and begin to oscillate, generating heat.
Once the light is off, the oscillations and the heating stop. As it turns out,
since it is extremely efficient at absorbing light. In their study, the investigators used thin films of gold
The light was able to heat electrons at the interface of the gold films and DNA solution ramping temperatures up staggeringly fast at approximately 13°C per second.
Rainer Kling, associate professor at the Light Technology Institute of KIT. Electroluminescent panels are a very popular way to backlight a screen,
Essentially the equivalent of a capacitor when used in an AC (Alternating current) circuit, EL panels encase their light-emitting material between two electrodes.
"This new type of'broadband'light emitter can be integrated into chips and will pave the way towards the realization of atomically thin, flexible,
Measuring the spectrum of light emitted from the new device, the researchers also discovered that it peaked at wavelengths not expected to be seen.
This was a result of interference between the light being generated directly by the glowing filaments
and light bouncing off the silicon substrate and back through the graphene filaments themselves.""This (phenomenon) is only possible
"A graphene lattice is also a particularly efficient way to produce light, due to its inherent ability to maintain excitation levels that allow the freer flow of electrons.
the new device also opens up many possibilities of alternative light generation at the microscale,
researchers at Missouri University of Science and Technology have developed a technique to print images that uses the manipulation of light, rather than the application of ink,
the researchers created holes with different diameters (ranging in size from 45 to 75 nanometers) corresponding to the desired absorption of light at various wavelengths.
and also to manipulate the light to produce four new colors to make an orange ampersand,
and can be activated by exposure to light, claiming it could offer safer means of repairing wounded tissue.
As the gel is exposed to light, its molecules bind together to create a mechanical stability,
Surface plasmon resonance (SPR) is a process where a stream of light is directed onto a metallic film, with most,
Some of the light is absorbed by electrons on the film's surface which causes them to jostle.
it affects how the light is absorbed and reflected, allowing scientists to deduce critical information about the composition of the sample,
While there's a healthy selection of compact solar panels to keep our mobile gadgets charged up light permitting the vast majority of these are either too small to be effective or too bulky for carting around.
but they throw a lot of light.""Ford revealed the Mode: Link app with the original two Mode e-bikes back in March
and cellular-scale inorganic light-emitting diode(-ILED) arrays, allowing it to shine light on targeted cells.
If we want to influence an animal behavior with light or with a particular drug, we can simply point the remote at the animal and press a button."
Some of that light is absorbed by glucose in the bloodstream, and some is reflected back down onto the window.
The car's camera system is also able to directly spotlight hazards with two special LED lamps positioned next to the fog lights.
the patient will perceive patterns of light, which they can learn to interpret, thus regaining some degree of sight.
a foam is made by bubbling a gas through molten metal to form a light froth that cools into a lightweight matrix.
The team's advancements on their previous research have led to the creation of electrochromic materials that can selectively permit the passage of light,
This design provides channels for electronic and ionic change, thereby enabling selective blocking of light and/or NIR through different applied voltages.
Creating light in small structures on the surface of a chip is crucial for developing fully integrated hotoniccircuits that do with light
By measuring the spectrum of the light emitted from the graphene, the team was able to show that the graphene was reaching temperatures of above 2500 degrees Celsius,
Interestingly, the spectrum of the emitted light showed peaks at specific wavelengths, which the team discovered was due to interference between the light emitted directly from the graphene
and light reflecting off the silicon substrate and passing back through the graphene. Kim notes, his is only possible
because graphene is transparent, unlike any conventional filament, and allows us to tune the emission spectrum by changing the distance to the substrate.
or other microorganisms that respond to light, or creates molecules to do so, and put them into nerve cells to transform them
*Carbon fibre bicycle frames are popular with cyclists as they are so light, but they are also liable to crack.
The light is projected through each well and collected by 96 plastic optical fibers. A custom-designed smartphone app then reads the resulting images
When the householder turns on a light, explains Rogers, the energy-making process will be activated immediately in the fuel cell stack.
because they give up some to the chemical bonds in the dye that coats the gold stars changing the way the dye looks under the laser light. 10 Technologies That Will Transform Your Life Ordinarily it would be difficult to see the change in the light
#Four Tech Breakthroughs at the Cutting edge of Light During these dark winter months, spare a thought for artificial lights.
From strings of lights adding holiday cheer to artificial sunlamps alleviating seasonal affective disorder, they brighten our days.
The United nations designated 2015 as the International Year of Light and Light-Based Technologies to raise awareness of how photonic technologies offer solutions to international challenges.
Light technology is now an active area of research in energy, health and agriculture. First lighting the way In the late 1800s
The ability to control light in new ways transformed how we experience and see the world.
The key to its success in replicating a sunny sky uses nanostructured materials to scatter light from LEDS in the same way tiny particles scatter sunlight in the atmosphere so-called Rayleigh scattering.
Light was recognized also in the Nobel prize category of Chemistry last year for light-based microscopy tools that use a few tricks to sense the presence of a single molecule.
if they are separated by more than half the wavelength of light used for imaging. But Nobel laureates Eric Betzig
By turning the light emitted from the molecules on or off, the scientists could reconstruct the location of the molecules at the nanometer scale.
Investors must see the light Light is a unifying science across fields like chemistry and physics
But learning how to manipulate light is costly and takes time. Technologies are built largely on investments in basic science research as well as, of course, serendipity and circumstantial opportunities.
The UN designation of this International Year of Light will spotlight the potentials of these kinds of innovations
From new ways to shake off those winter blues to manipulating light in small spaces, the trajectory for artificial light is bright indeed n
Researchers have developed a light-emitting graphene transistor that works in the same way as the filament in a light bulb."
the researchers said. 8 Chemical elements You've Never Heard Of Making light When electric current is passed through an incandescent light bulb's filament usually made of tungsten the filament heats up and glows.
As for why this is the first time light has been made from graphene, study co-leader Yun Daniel Park,
"The light emitted from the graphene also reflected off the silicon that each piece was suspended in front of.
The reflected light interferes with the emitted light, producing a pattern of emission with peaks at different wavelengths.
tuning the light by varying the distance to the silicon. The principle of the graphene is said simple,
or other therapies safely to sites of disease are already seeing the light of day.
so that light can be delivered correctly. The hope is that this new application of optogenetics to voluntary muscles will help in medical research
#Gastrisail Lights Up Stomach from Within for Accurate Sleeve Gastrectomy Procedures Medtronic just released in the U s. the Gastrisail gastric positioning system for sleeve gastrectomy procedures.
Having identified how brain cancer cells uniquely scatter light, the researchers wrote a computer program that spots the relevant parameters within OCT scan data.
but now it may finally see clinical light of day. The company has partnered now with Teva Pharmaceutical to produce the initial product and put it through clinical trials.
Since such frequencies of light are able to penetrate a patient skull the infrared light source can be used as a simple remote control to open up the drug chambers as necessary s
clean water and light,"said Aisa Mijeno, cofounder and CEO of SALT Corp. Related on MNN N
The Utah engineers have developed an ultracompact beamsplitter the smallest on record for dividing light waves into two separate channels of information.
and shuttle data with light instead of electrons. Electrical and computer engineering associate professor Rajesh Menon and colleagues describe their invention today in the journal Nature Photonics.
the photons of light must be converted to electrons before a router or computer can handle the information.
if the data stream remained as light within computer processors. ith all light, computing can eventually be millions of times faster,
(which looks somewhat like a barcode) on top of a silicon chip that can split guided incoming light into its two components.
or shuttled is done through light instead of electrons. Photo credit: Dan Hixson/University of Utah College of Engineering Source:
For example, when they are illuminated with infrared laser light, they emit visible blue light. A number of crystals produce this effect, called frequency doubling or harmonic generation, to various degrees.
Linearly polarized light, like that produced by a Polaroid filter, vibrates in a single plane.
When left-handed nano-spirals are illuminated with clockwise polarized light, the amount of blue light produced is maximized
Counterclockwise polarized light, on the other hand, produces a minimal amount of blue light because the polarization tends to push the electrons outward
"This new type of'broadband'light emitter can be integrated into chips and will pave the way towards the realization of atomically thin, flexible,
"Creating light in small structures on the surface of a chip is crucial for developing fully integrated'photonic'circuits that do with light
By measuring the spectrum of the light emitted from the graphene, the team was able to show that the graphene was reaching temperatures of above 2500 degrees Celsius,
Interestingly, the spectrum of the emitted light showed peaks at specific wavelengths, which the team discovered was due to interference between the light emitted directly from the graphene
and light reflecting off the silicon substrate and passing back through the graphene. Kim notes
his is only possible because graphene is transparent, unlike any conventional filament, and allows us to tune the emission spectrum by changing the distance to the substrate. he ability of graphene to achieve such high temperatures without melting the substrate
along with an international team, have come up with an ingenious way of creating therapeutic heat in a light, flexible design.
It is possible for something to move faster than the phase velocity of light in a medium
wakes produced as electrical charges travel through liquids faster than the phase velocity of light, emitting a glowing blue wake.
For the first time, Harvard researchers have created similar wakes of light-like waves moving on a metallic surface, called surface plasmons,
and harness the power of light on the nanoscale.""The creation and control of surface plasmon wakes could lead to new types of plasmonic couplers
The team discovered that the angle of incidence of the light shining onto the metamaterial provides an additional measure of control
and using polarized light can even reverse the direction of the wake relative to the running waveike a wake traveling in the opposite direction of a boat."
and manipulate light at scales much smaller than the wavelength of the light is said very difficult
and shine lights on neurons deep inside the brains of mice. The revolutionary device is described online in the journal Cell.
and delivering lights through fiber optic cables. Both options require surgery that can damage parts of the brain
and can simultaneously deliver drugs and lights.""We used powerful nanomanufacturing strategies to fabricate an implant that lets us penetrate deep inside the brain with minimal damage,
Scientists used soft materials to create a brain implant a tenth the width of a human hair that can wirelessly control neurons with lights and drugs.
These oscillations create their own light, which reacts again with the free electrons. Energy trapped on the surface of the nanocube in this fashion is called a plasmon.
These oscillations create their own light, which reacts again with the free electrons. Energy trapped on the surface of the nanocube in this fashion is called a plasmon.
#Reshaping the solar spectrum to turn light to electricity Researchers find a way to use the infrared region of the sun's spectrum to make solar cells more efficient.
which then generated upconverted orange yellow fluorescent 550-nanometer light, almost doubling the energy of the incoming photons.
providing a route to higher efficiencies. his 550-nanometer light can be absorbed by any solar cell material,
Put simply, the inorganics in the composite material take light in; the organics get light out. esides solar energy,
#Reshaping the solar spectrum to turn light to electricity Researchers find a way to use the infrared region of the sun's spectrum to make solar cells more efficient.
which then generated upconverted orange yellow fluorescent 550-nanometer light, almost doubling the energy of the incoming photons.
providing a route to higher efficiencies. his 550-nanometer light can be absorbed by any solar cell material,
Put simply, the inorganics in the composite material take light in; the organics get light out. esides solar energy,
The technological advance puts lasers one step closer to being a mainstream light source and potential replacement or alternative to light emitting diodes (LEDS.
The technology under development is called Li-Fi for light-based wireless communication, as opposed to the more prevailing Wi-fi,
because the light from a typical laser contains exactly one color, a specific wavelength of the electromagnetic spectrum, rather than a broad-range of different wavelengths.
This mixture of colored light will be perceived by humans as white light and can therefore be used for general illumination.
The most preferred light emitting material for semiconductors is indium gallium nitride though other materials such as cadmium sulfide and cadmium selenide also are used for emitting visible colors.
The direct gap semiconductor show a significantly enhanced PL emission due to the efficient absorption of light in direct gap materials
which is important for calculating the amount of energy a single particle of light, or photon, Boyd wondered
2015new nanowire structure absorbs light efficiently: Dual-type nanowire arrays can be used in applications such as LEDS and solar cells February 25th, 2015qd Vision Named Edison Award Finalist for Innovative Color IQ Quantum dot Technology
which means they emit light of a particular wavelength in response to incoming light of a different wavelength.
Videos/Movies Light as puppeteer: Controlling particles with light and microfibers March 18th, 2015imperfect graphene opens door to better fuel cells:
Membrane could lead to fast-charging batteries for transportation March 18th, 2015news and information 30 years after C60:
Diffraction limittraditional microscopy is limited by the diffraction of light around objects. That is when a light wave from the source strikes the object, the wave will scatter somewhat.
This scattering limits the spatial resolution of a conventional microscope to no better than about one-half the wavelength of the light being used.
Since the measured light from the dot is the substance of the imaging process, the presence of light coming from the"image dipole"can interfere with light coming directly from the dot.
This distorts the perceived position of the dot by an amount which is 10 times higher than the expected spatial accuracy of the imaging technique
2015new nanowire structure absorbs light efficiently: Dual-type nanowire arrays can be used in applications such as LEDS and solar cells February 25th,
Controlling particles with light and microfibers March 18th, 2015nano piano's lullaby could mean storage breakthrough March 16th, 201 2
By precisely etching tiny features--smaller than a wavelength of light--onto a silicon film one thousand times thinner than a human hair, the researchers were able to select the range of colors the material would reflect,
Controlling light with structures rather than traditional optics is not new. In astronomy, for example, evenly spaced slits known as diffraction gratings are used routinely to direct light
Rather than spreading the light into a complete rainbow, however, these ridges--or bars--reflect a very specific wavelength of light.
and readily reflected the frequency of light they were tuned to. Flexibility Is the Key to Controlsince the spacing
spaced so they can interact with a specific wavelength of light, you can change its properties
and how it interacts with light by changing its dimensions, "said Chang-Hasnain. Earlier efforts to develop a flexible,
reflecting only a portion of the light they received. Other surfaces were too thick, limiting their applications,
and reflect light with even greater efficiency. Chameleon Skin with Multiple Applicationsfor this demonstration, the researchers created a one-centimeter square layer of color-shifting silicon.
OSA is a founding partner of the National Photonics Initiative and the 2015 International Year of Light.
2015new nanowire structure absorbs light efficiently: Dual-type nanowire arrays can be used in applications such as LEDS and solar cells February 25th, 2015qd Vision Named Edison Award Finalist for Innovative Color IQ Quantum dot Technology February 23rd,
Study sheds light on why foreign STEM students stay in US or return home March 11th, 2015announcements Super-resolution microscopes reveal the link between genome packaging and cell pluripotency:
Utah engineers take big step toward much faster computers The Utah engineers have developed an ultracompact beamsplitter--the smallest on record--for dividing light waves into two separate channels of information.
and shuttle data with light instead of electrons. Electrical and computer engineering associate professor Rajesh Menon and colleagues describe their invention today in the journal Nature Photonics.
the photons of light must be converted to electrons before a router or computer can handle the information.
"With all light, computing can eventually be millions of times faster, "says Menon. To help do that, the U engineers created a much smaller form of a polarization beamsplitter
(which looks somewhat like a barcode) on top of a silicon chip that can split guided incoming light into its two components.
They are used also in other industries to manufacture fuel cells, batteries, filters and light-emitting screens."
2015patents/IP/Tech Transfer/Licensing Novel superconducting undulator provides first x-ray light at ANKA May 1st,
where the light enters through a transparent negative electrode, in our case made of zinc oxide,
and reflection (shining a light on or through the image) an effect impossible for a hologram to achieve.
For example, when they are illuminated with infrared laser light, they emit visible blue light. A number of crystals produce this effect, called frequency doubling or harmonic generation, to various degrees.
Linearly polarized light, like that produced by a Polaroid filter, vibrates in a single plane.
In circularly polarized light, the polarization plane rotates either clockwise or counterclockwise. When left-handed nano-spirals are illuminated with clockwise polarized light,
the amount of blue light produced is maximized because the polarization pushes the electrons toward the center of the spiral.
Light can transmit more data while consuming far less power than electricity, and an engineering feat brings optical data transport closer to replacing wires May 29th,
Lights on--molecule on: Researchers from Dresden and Konstanz succeed in light-controlled molecule switching April 20th,
Our study shows that light invisible to the human eye does not necessarily mean that it does not play a crucial role for living organisms.
As a result, this human-made material manipulates electromagnetic radiation-light-in ways never observed in natural materials.
size, and structure to facilitate desired interactions with light, electrical or magnetic fields, or chemical environment to provide unique functionality in a wide range of applications from energy to medicine.
An international collaboration has succeeded in using synchrotron light to detect and record the complex 3-D magnetization in wound magnetic layers.
Focussing light to improve sensingthe researchers used graphene to improve on a well-known molecule-detection method:
graphene is capable of focussing light on a precise spot on its surface and"hearing"the vibration of a nanometric molecule that is attached to it.
When the light arrives, the electrons in graphene nanostructures begin to oscillate. This phenomenon concentrates light into tiny spots,
which are comparable with the dimensions of the target molecules. It is then possible to detect nanometric compounds in proximity to the surface.
This is because graphene is an inert material for the elements to be detected and the reading mechanism uses light
They showed how a single nanoresonator can manipulate light to cast a very large"reflection."
"Making an object look 10,000 times larger than its physical size has lots of implications in technologies related to light,
Much like sound, light can resonate, amplifying itself as the surrounding environment manipulates the physical properties of its wave energy.
which the wavelength of light is much larger than in a vacuum, which allows light waves to resonate more powerfully.
and then scatters the light over a very large area, harnessing its output for imaging applications that make microscopic particles appear huge."
"This research opens up a new way to manipulate the flow of light, and could enable new technologies in light sensing and solar energy conversion,
By shedding light on the fundamental physical processes involved in data storage the work may lead to better, faster computer memory systems with larger storage capacity.
"Today, nanosecond lasers--lasers that pulse light at one-billionth of a second--are used to record information on DVDS and Blu-ray disks,
by the duration of each"pulse"of light--and by how fast the material itself can shift from one state to the other.
2015delmic reports on a new review paper published in Nature Methods on Correlated Light & Electron microscopy from their user groups at the Universities of Delft and Groningen July 14th, 2015global Sol-Gel Nanocoatings Industry 2015:
but the drawback that it cannot easily absorb light when it is a large flat surface as used in Gap solar cells.
meaning that it emits light when electric current is run through it or when it is shot with a nondestructive laser.
when electrical current is passed through it. e were trying to make a vertically stacked light-emitting device based on monolayer Mos2,
So we followed this new lead to investigate the underlying mechanism and the potential of multilayer Mos2 in light-emitting devices.
with the goal of helping to create a new generation of light-emitting devices from two-dimensional layered materials,
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