and could help electric cars travel further on a single charge, thanks to their light and bendy structure.
#Light-based computers will be even more awesome than we thought Researchers have come up with an efficient way of transporting data between computer chips using light rather than electricity.
theye struggled to find an efficient way to transmit that light across the thousands of different connections,
In theory, light can be beamed between chips via silicon structures that bend it to the desired location,
Called'Light and Charge',these prototype street lights combine energy-efficient Light Emitting Diodes (LED) and BMW Chargenow recharging stations,
The team announced that it would be testing the Light and Charge system out in Munich, Germany next year,
and use a control panel on the light to swipe their charge card and register their use.
when the light is too low for the power cells. At $15, 000 per unit, the price tag might sound exorbitant,
Team leader Yoichi Ochiai says the hologram size is limited by the size of the spatial light modulator included in the setup,
"The spatial light modulator can modify the phases of light rates and produce various spatial distributions of light based on interference,"explains the team from DNG."
"Our results led to calmer and safer plasma generation that can be incorporated into our daily lives."
whereas LHCB conducted the search with the lights on, and from all angles,"the CERN release explains.
In 2013 the young start-up company Trilite Technologies had the idea to develop this new kind of display which sends beams of light directly to the viewers'eyes.
and fabricated a waveplate that can transform the polarization state of light, "said Zhi Hao Jiang,
For instance, if we transform linearly polarized light into circularly polarized light, this could be useful in optical communication and biosensing."
Quantum information promises unbreakable encryption because quantum particles such as photons of light can be created in a way that intrinsically links them.
We can now imagine storing entangled light in separate crystals and then transporting them to different parts of the network thousands of kilometres apart.
and shaping of light beams A team of engineers has developed a new acousto-optic device that can shape
and steer beams of light at speeds never before achieved. The new technology will enable better optical devices to be made,
so does the shape of the light beam. Professor Drinkwater from the Department of Mechanical engineering said:"
which has given us much greater flexibility in the control we have over light with these devices."
or even fast and high power control of light beams for free space optical communications using orbital angular momentum to increase signal bandwidth,
and spatial light modulators (SLMS) are the common choice in a wide range of applications such as holography, optical tweezers and microscopy y
technique that focuses diffuse light inside a dynamic scattering medium containing living tissue. In addition they have improved the speed of optical focusing deep inside tissue by two orders of magnitude.
By detecting the wavefront of light emitted from the guide star they can determine an optimum phase pattern that allows scattered light moving along different paths to focus at the targeted location.
When light is shined into living biological tissue breathing and blood flow changes the optical interference or speckle pattern
Researchers use a type of mirror to record then time-reverse the ultrasound-modulated light emitted from the ultrasonic focus to achieve the best focus.
The new TRUE technology is able to focus light inside a dynamic medium with a speckle correlation time as short as 5. 6 milliseconds.
The improved speed allowed Wang to achieve the first optical focusing of diffuse light inside a scattering medium containing living biological tissue.
Going forward the team plans to implement the system in a reflection configuration where light is shined
The BSIT phenomenon permits light to travel in the forward direction while light traveling in the backward direction is absorbed strongly.
Light at certain wavelengths can be absorbed out of a thin optical waveguide by a microresonator
The effect occurs due to the interaction of the light with sound waves present in the material
but they are nonlinear devices requiring filtering of the scattered light. BSIT on the other hand is a linear nonreciprocal mechanism.
Physicists call this fast and slow light. Slow light techniques are extremely useful for quantum information storage and optical buffer applications.
Some day such buffers could be incorporated in quantum computers. While it is known already that the slow and fast light can be obtained using Brillouin scattering our device is far smaller
and uses far less power than any other previous demonstration by several orders-of-magnitude.
In their studies Bahl's research group uses the extremely minute forces exerted by light to generate
and transferring light signals to the brain for decoding. The causal mechanisms of this disease remain elusive.
However in light of time they decided to try regular Makerbot PLA Filament. The advantage of PLA is that it's used in all kinds of surgical implant devices says Dr. Smith.
which to convert light into power--more cost efficiently. The global PV market has experienced rapid growth in recent years due to renewable energy targets and CO2 EMISSION controls.
in converting light to power in a range of atmospheric conditions rather than just under direct sunlight.
%among the highest reported in the field of perovskite-based light-to-energy conversion devices. The cells demonstrate little cell-to-cell variability,
light sources; a pump; and a microfluidics chip with a fluorometer, also developed at the University Hospital Zurich.
If UV LIGHT is beamed onto these spiropyran molecules, they alter their chemical structure and become charged (polar).
When irradiated with visible light, they revert to their original, neutral structure. As a result, the membrane"opens
"if irradiated with UV LIGHT and glucose molecules diffuse relatively easily through the membrane from the skin.
If irradiated with visible light, considerably fewer glucose molecules pass through the membrane. The measurement involves sticking the measuring head,
to the baby's skin and irradiating it with visible light; some glucose molecules diffuse through the membrane from the skin.
The process is repeated then with UV LIGHT. The computer then uses these two different readings to calculate the premature baby's blood sugar level.
"For antireflection applications, the idea is to prevent light or radio waves from bouncing at interfaces between materials,"said physicist Charles Black,
and we'd like to capture the light irrespective of the direction it comes from. But each color of light couples best with a different antireflection coating,
The resulting surface nanotexture served to gradually change the refractive index to drastically cut down on reflection of many wavelengths of light simultaneously, regardless of the direction of light impinging on the solar cell."
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 absorbers--solar absorbers that don't rust
and do need not much cleaning. Guo's team had blasted previously materials with the lasers and turned them hydrophilic meaning they attract water.
and has a lower output (100 W). An electronic control system manages the flow of energy between the solar panel the wind turbine the battery and the light.
Data transmission via light could be the answer to the call for a faster and more energy efficient data flow on computer chips as well as between different board components.
Neither element is very efficient as a light source however. They are classed among the indirect semiconductors.
In contrast to direct semiconductors they emit mostly heat and only a little light when excited.
While conventional light-sheet microscopes use two awkwardly positioned objective lenses Hillman realized that she could use a single-objective lens
which means that it can't be used to visualize objects much smaller than the wavelength of the light being used.
For example if you are using blue-green light with a wavelength of 500 nanometers you can't see anything smaller than 250 nanometers.
sheds light on how organisms evolve new morphological structures and functions.""For the first time, we have a good understanding of how something completely novel evolves in nature,
as they are able to show much finer details than visible light and their penetrating power allows you to see inside objects,
compared to 400 to 800 nm for visible light. A nanometre is a millionth of a millimetre.
that must be reconsidered in light of the presence of something science insisted did not exist t
tuned to the daily cycle of light and dark, sends out signals that synchronize the molecular clocks ticking away in almost every cell and tissue of the body.
in order to measure light scattering patterns of individual bacteria, which can then be used to identify bacteria species for rural areas
fingerprint-like light scattering pattern for any given bacterial cell. They then applied software they designed to the analysis,
This was the first time anyone had applied machine learning to Fourier Transform light scattering data, Park said. They are now looking to extend their initial work to see
The researchers then beamed light through the holes to create the logo using no ink--only the interaction of the materials and light.
This allowed researchers to create different colors in the reflected light and thereby accurately reproduce the S&t athletic logo with nanoscale color palettes.
to prevent light from scattering as it is being transmitted and, second, to transmit and manipulate light signals fast enough to handle increasingly large quantities of data.
Glass, an amorphous material with an inherently disordered atomic structure, cannot meet these challenges, the researchers say.
Scientists have been attempting for years to make crystals in glass in order to prevent light from being scattered as light signals are transmitted,
"We have made the equivalent of a wire to guide the light. With our crystal, it is possible to do this in 3d
so that the wire--the light--can curve and bend as it is transmitted. This gives us the potential of putting different components on different layers of glass."
and for steering light from one place to another as a supermarket scanner does. Ferroelectric crystals can also transform light from one frequency to another.
This makes it possible to send light through different channels.""""Other groups have made crystal in glass
but were not able to demonstrate quality, "says Jain.""With the quality of our crystal, we have crossed the threshold for the idea to be useful.
and where light is absorbed.""We can heat the glass only locally, "says Jain, "creating the desired conditions and causing the glass to melt,
"The nonlinear absorption of light, says Dierolf, depends on the intensity of light in selected areas."
"If you double the intensity of the laser, you might get 20 to 100 times more absorption.
and National institutes of health in America has shed new light on how immune cells are programs to either repair
"Extremely compact devices such as this promise a revolution in our ability to manipulate photons coming from synchrotron light sources,
Only the light that is diffracted from the mirror goes on to hit the sample, and by adjusting the speed at
you will see flashes of light every time the wheel is at the perfect spot for sunlight to hit it.
and its applications in wider fields at next-generation light sources,"said Tetsuya Ishikawa, the director of the RIKEN SPRING-8 Center in Japan.
These include newly planned light source facilities such as the Advanced Photon Source Upgrade.""Such small sources and tiny MEMS devices form an ideal combination to make 3-D X-ray ultrafast movies with nanometer resolution,"added Jin Wang, a senior scientist at the APS and one
The need for this optics technology will grow with the construction of the next-generation of light sources
New synchrotron light sources using multi-bend achromat technology and X-ray Free electron lasers create much brighter X-rays with higher fluxes.
lead author and physicist at the National Synchrotron Light source II at Brookhaven National Laboratory. Currently, two types of diffractive X-ray optics tools are used:
when it is irradiated with light of a certain wavelength. When the chain reaction has run for a
Jeon's group, their light-emitting mechanisms were studied carefully by Prof. Cho's group with their transient spectroscopic technique,
and manufactured a module enabling irradiation with UV-B light of a specific wavelength. In this particular case, LEDS emitting at a wavelength around 310 nm are used to stimulate health-promoting secondary metabolites in plants.
With these FBH tiny monolithic light sources on chip level, a compact SERDS measurement head that is only as small as a laser pointer was realized for the first time.
#Miniscule mirrored cavities connect quantum memories The enhanced interactions between light and atoms and the extended spin-coherence times are essential steps toward realizing real-world quantum memories and, hence, quantum computing systems,
Nanoscale mirrored cavities that trap light around atoms in diamond crystals increase the quantum mechanical interactions between light and electrons in atoms.
and the Diamond Light source in Oxfordshire, England. In the process, they discovered why the electrons are so fast and mobile.
This is a procedure where the inside of the body is examined using a probe with a light source and video camera at the end via the mouth and down the gullet.
and x-ray scattering at the National Synchrotron Light source--both DOE Office of Science User Facilities.
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.
This enhances the interaction between the light and the sample, and the signal becomes easily measurable,
Then, the corresponding quantities depend on the orientation of the polarization of light with respect to the symmetry axes of the particle."
#Nanostructure design enables pixels to produce two different colors depending on polarization of incident light Through precise structural control,
"We decided to extend our research to prints that would exhibit different images depending on the polarization of the incident light,
More broadly, by using the ABE fermentation as an example, the work further sheds light on systems biology toward an integrated and quantitative understanding of complex microbial physiology
The light operates continuously and requires no operator, kills bacteria in the air and on all surfaces,
This High-Intensity Narrow Spectrum (HINS) light is absorbed by molecules within bacteria, producing a chemical reaction that kills the bacteria from the inside
Because the light is visible, it is lethal to pathogens but is safe for use in the presence of patients and staff."
Bursts of light less than one-trillionth of a second long vaporized thin sections of the sample without heating the sample itself."
along with an international team, have come up with an ingenious way of creating therapeutic heat in a light, flexible design.
The work sheds new light onto at least one biological process that mediates neuropathic pain, Inceoglu said.
"Because our membrane is so light, it has an extremely wide frequency response and is able to generate sharp pulses
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."
In addition, Yu envisions simply letting the resonator emit that energy in the form of infrared light toward the sky,
"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,
"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.
#Potential of blue LEDS as novel chemical-free food preservation technology A team of scientists from the National University of Singapore (NUS) has found that blue light emitting diodes (LEDS) have strong antibacterial
While LEDS are most commonly known as an energy saving light source, they have also been known to have an antibacterial effect.
Bacterial cells contain light sensitive compounds that adsorb light in the visible region of the electromagnetic spectrum (400-430 nm),
or by using very close distance of less than 2 cm between the bacterial suspension and LED light source.
"At the heart of the new technology is a piece of nano-engineered silica glass with ions that fluoresce in infrared light when a low power laser light hits them.
corresponding to red light of a wavelength of 700 nanometers. As more layers were added, the optical gap decreased.
The study has been hailed by researchers familiar with the work as one of the most important scientific results to date using SLAC's Linac Coherent light Source LCLS), a DOE Office of Science User Facility that is one of the brightest
"The network of silver nanowires is so fine that almost no light for solar energy conversion is lost in the cell due to the shadow,
On the contrary, she hopes"it might even be possible for the silver nanowires to scatter light into the solar cell absorbers in a controlled fashion through
more portable and many times faster by accelerating the heating and cooling of genetic samples with the switch of a light.
This turbocharged thermal cycling, described in a paper in the journal Light: Science & Application, greatly expands the clinical
Once the light is off, the oscillations and the heating stop. Gold, it turns out,
because it is so efficient at absorbing light. It has added the benefit of being inert to biological systems,
The light source was an array of off-the-shelf LEDS positioned beneath the PCR wells. The peak wavelength of the blue LED light was tuned 450 nanometers
to get the most efficient light-to-heat conversion. The researchers were able to cycle from 131 degrees to 203 degrees Fahrenheit 30 times in less than five minutes.
and also that in light of the new findings the textbooks might need some revising t has become increasingly clear that the central nervous system is immune different rather than immune privileged,
ove uses infrared light to illuminate your eye, regardless of eye color, Lochlainn Wilson, Fove CTO, tells Tech in Asia. he iris reflects the same light pretty much across all of humanity.
There are little cameras looking at your eye, but theye not visible, and they track your eye movements.
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 absorbers solar absorbers that don rust
and do need not much cleaning. Guo team had blasted previously materials with the lasers and turned them hydrophilic,
While conventional light-sheet microscopes use two awkwardly positioned objective lenses, Hillman realized that she could use a single-objective lens,
Based on a chaotic cavity laser the technology combines the brightness of traditional lasers with the lower image corruption of light emitting diodes (LEDS.
The search for better light sources for high-speed full-field imaging applications has been the focus of intense experimentation and research in recent years.
A way to avoid such distortion is by using LED light sources. The problem is LEDS are not bright enough for high-speed imaging.
Silicon solar cells generate electricity by absorbing photons of visible and infrared light, while perovskite cells harvest only the visible part of the solar spectrum where the photons have more energy.
Colin Bailie, Stanford bsorbing the high-energy part of the spectrum allows perovskite solar cells to generate more power per photon of visible light than silicon cells,
or light it likely will degrade. We have a ways to go to show that perovskite solar cells are stable enough to last 25 years.
In 2013 the young start-up company Trilite Technologies had the idea to develop this new kind of display which sends beams of light directly to the viewerseyes.
but also changes the pattern of light emitted, a trait that could be important for the development of quantum devices,
#New catalyst process uses light not metal for rapid polymerization A team of chemistry and materials science experts from University of California,
and light as the stimulus for the highly controlled chemical reaction. he grand challenge in ATRP has been:
Sulphur as a battery material is extremely abundant, relatively light, and very cheap. Unfortunately, the sulphur cathode exhausts itself after only a few cycles
Thanks to this window space, the solar cell obtains adequate light, even in the darkness of winter.
leading to loss of light and a drop in efficiency. By sandwiching the cells between the lenslet arrays,
CPV systems can concentrate the diffuse light and they lose their efficiency advantage. The researchers tested their prototype concentrator panel outside over the course of a day in State College, Penn.
and emits light from across its whole surface. Being so thin, at only 10-40 atoms thick,
Something similar happens to a pulse of light sent through a medium. The pulse is a combination of different colours
The nonlinear interaction between the light and the gas atoms in the special fibre makes different wavelengths travel at different velocities.
allowing scientists to measure the state in an optical microscope. The trick is getting the electron spins in the NV centers to hold onto the stable spin states long enough to perform these logic gate operationsnd being able to transfer information among the individual memory elements to create actual computing networks
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.
or shuttled is done through light instead of electrons. Image credit: Dan Hixson/University of Utah College of Engineeringsilicon photonics could significantly increase the power and speed of machines such as supercomputers, data center servers and the specialized computers that direct autonomous cars and drones with collision detection.
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.
They say this has the potential to lead to new kinds of light detection, thermal-management systems,
Although the two materials are structurally similar both composed of hexagonal arrays of atoms that form two-dimensional sheets they each interact with light quite differently.
The hybrid material blocks light when a particular voltage is applied to the graphene, while allowing a special kind of emission and propagation,
One of the consequences of this unusual behavior is that an extremely thin sheet of material can interact strongly with light,
while light interacting with hbn produces phonons. Fang and his colleagues found that when the materials are combined in a certain way,
The properties of the graphene allow precise control over light, while hbn provides very strong confinement and guidance of the light.
Combining the two makes it possible to create new etamaterialsthat marry the advantages of both,
comes from the ability to switch a light beam on and off at the material surface; because the material naturally works at near-infrared wavelengths, this could enable new avenues for infrared spectroscopy,
says, his work represents significant progress on understanding tunable interactions of light in graphene-hbn.
including in flexible light sources, solar panels that could be integrated into windows, and membranes to desalinate and purify water.
They have developed the first light-emitting, transparent and flexible paper out of environmentally friendly materials via a simple, suction-filtration method.
because the daughter phase is determined completely by the type of DNA reprogramming strands we use. he scientists were able to observe the structural transformations to various daughter phases using a technique called in situ small-angle x-ray scattering at the National Synchrotron Light source,
which provided the light, a polarizer sat on top of the samples to help separate the tablet light from the emission from the samples.
Now, in a finding that casts new light on the nature of memory, published in Science,
the researchers used optogenetic technology to selectively activate neurons that were labeled genetically during their training in chamber A with a blue light-sensitive protein,
collectively called a emory engram with blue light pulses, the amnestic mice froze just as much as the control mice, indicating that they remembered that they had acquired the memory,
#Revolutionary New High-speed Infrared detector Sees First Light The first prototype of a new generation of fast and very sensitive detectors has been installed successfully on the PIONIER instrument at ESO Paranal Observatory.
Unlike most of the commercially available detectors, RAPID can spot photons (light particles) of both visible and infrared light (wavelengths from 0. 4. 6 micrometres.
PIONIER was chosen as its interferometric combination of light requires a very fast detector to fight against atmospheric turbulence,
such as compact fluorescent light bulbs, to be recycled this way n
Overtext Web Module V3.0 Alpha
Copyright Semantic-Knowledge, 1994-2011