In light of this Premera is stressing that the company will not email or call customers about the breach.
The system uses a beam of light on the floor, according to Georgia Tech. The warmrobots, which are in constant communication with each other,
when someone swipes the Apple ipad to drag the light across the floor, the robots follow.
"In a demonstration of the system, each robot is constantly measuring how much light is in its local eighborhood. hen there too much light in a robot area,
so that another robot can steal some of its light. he robots are working together to make sure that each one has the same amount of light in its own area,
the UCSD cloak works by manipulating electromagnetic waves, such as visible light or radio waves. Because it can scatter these waves,
The material only operates within a narrow range of wavelengths which means a single piece can only be used for a single purpose, such as hiding from radar.
Early cloaking designs required material ten times thicker than the wavelength being blocked. The UCSD cloak is effective at 1/10th of a wavelength,
allowing the team to use only a 3mm piece of material to dodge a 3cm radar wave.
The UCSD technology also can be adapted to block different wavelengths by modifying the thickness of the material being used.
while still allowing light and electrons to pass through. The new system uses such a 62.5-nanometer-thick Tio2 layer to effectively prevent corrosion
a device that you can see under an optical microscope, and wee seeing the quantum effects in a trillion atoms instead of just one.
Coauthors Aashish Clerk from Mcgill University and Florian Marquardt from the Max Planck Institute for the Science of Light proposed a novel method to control the quantum noise,
or monochromatic light oscillates at all points in space with the same frequency but varying relative delays, or phases.
Manipulating the polarization of light is essential for the operation of advanced microscopes, cameras, and displays;
and phase of light, says Amir Arbabi, a senior researcher at Caltech and first author of the study published in Nature Nanotechnology. e can take any incoming light
and shape its phase and polarization profiles arbitrarily and with very high efficiency. MUCH THINNER THAN A HUMAN HAIR While the same goal can be achieved using an arrangement of multiple conventional optical components such as glass lenses, prisms, spatial light modulators
a metasurface device could manipulate light in novel ways that are very hard and sometimes impossible to do using current setups.
when illuminated by a horizontally polarized beam of light, and a different image when illuminated by a vertically polarized beam. he two images will appear overlapped under illumination with light polarized at 45 degrees,
Faraon says. MINIATURE CAMERAS AND MORE In another experiment, the team was able to use a metasurface to create a beam with radial polarization, that is, a beam
These waves have a much shorter wavelength than the incident sound waves that produce them. As the evanescent waves decay very fast as they propagate,
it would also be interesting to adapt the method for ultrasound that has shorter wavelengths. ecause the size of the polymer structure has to be adjusted to the operational wavelength,
or light in a way that is precisely timed to create space structures, deployable medical devices, robots, toys, and range of other structures.
or the matching of noisy sounds with bright lights. Multimodal processing, like these mappings, may be the key to making sensory substitution devices more automatic.
explains Stiles. e found that using this device to look at texturesatterns of light and darkllustrated ntuitiveneural connections between textures and sounds, implying that there is some preexisting crossmodality,
all of the light that you see reflected from the object is at that frequency. When you shine a red laser pointer at a wall, for example,
your eye detects red light. However, for all materials, there is a tiny amount of light bouncing off at integer multiples of the incoming frequency.
So with the red laser pointer, there will also be some blue light bouncing off of the wall.
e found that light reflected at the second harmonic frequency revealed a set of symmetries completely different from those of the known crystal structure,
whereas this effect was completely absent for light reflected at the fundamental frequency, says Hsieh. his is a very clear fingerprint of a specific type of multipolar order.
the inability to work in bright light, especially sunlight. The key is to gather only the bits of light the camera actually needs.
and its light source to work together efficiently, eliminating extraneous light, or oise, that would otherwise wash out the signals needed to detect a scene contours. e have a way of choosing the light rays we want to capture
and only those rays, says Srinivasa Narasimhan, associate professor of robotics at Carnegie mellon University. e don need new image-processing algorithms,
This not only makes it possible for the camera to work under extremely bright light or amidst highly reflected or diffused lightt can capture the shape of a lightbulb that has been turned on,
when the camera captures ambient light from a scene. But as a projector scans a laser across the scene,
The trick is to be able to record only the light from that spot as it is illuminated
despite the light scattering that usually makes it impenetrable to cameras. Manufacturers also could use the system to look for anomalies in shiny or mirrored components.
"In light of the findings, we suggest that genomic analyses be integrated into the standard of practice for diagnostic assessment of cerebral palsy."
"In light of the findings, we suggest that genomic analyses be integrated into the standard of practice for diagnostic assessment of cerebral palsy."
while it is illuminated by a pattern of light (similar to scanning a barcode). Several different light patterns are applied,
and the resulting patterns, called moiré, are captured from various angles each time by a digital camera.
and the fact that it took so much less light than the other methods,"Dr. Betzig noted.
and then deactivate them with a different wavelength of lightepeating the process 25 times or more to construct a high-resolution image."
The scientists created a new pattern of light to deactivate molecules and extract information from their deactivation.
The combined effect of those patterns led to final images with 62-nanometer resolutionuch better than standard SIM and a threefold improvement over the limits imposed by the wavelength of light."
thus keeping the light from getting through the glass. Once the sun goes down or clouds roll in,
Things are now back on track with the FAA giving Amazon the green light to put its current models to the test.
The receiver collects the backscatter of the reflected light from objects in the beam and, using full-waveform analysis,
measuring the distance of the detected objects (based on the time taken by the light to return to the sensor).
The use of a diffuse light beam increases the detection robustness of specular surfaces. Another benefit is its high performance in harsh weather conditions such as rain or snow.
Time-of-Flight Principle Leddar sensors use LEDS to generate very short light pulses, typically 100,000 pulses per second.
The time-of-flight (Tof) principle essentially consists in measuring the time taken by a light pulse to travel from the sensor to a remote object
The range R of the detected object is deduced from the measured full round-trip time T of the light pulse using the simple relation R c T/2 n
where c is the speed of light in vacuum and n denotes the refractive index of the medium in which the light pulse propagates.
the light pulse is absorbed either, totally reflected, or reflected diffusely. This causes different irradiances of the echo pulse at the receiver,
The purpose of the emission optics of a Leddar sensor is to direct as much of the emitted light from one
The purpose of the reception optics is to collect the backscatter of light from objects in that beam onto the photodetector.
The light pulses propagate through the detection area and reflected light is captured by the optics and the photodetector.
The sensor signal is amplified, and the signal acquisition is synchronized to the pulses. An oversampling scheme using multiple light pulses is implemented to improve the resolution of the acquired signal.
Typical oversampling values are 4 or 8 which produces a digitized signal with an increased number of samples for improved accuracy and precision.
The amplitude of each sample is an indicator of the quantity of light reflected back from a given object at that specific distance.
if a light pulse above a predetermined threshold is found. The threshold at which a peak in the trace is interpreted as the presence of an object depends on the signal-to-noise ratio.
The pulsed light sent over such a wide area captures the entire signal to detect multiple objects,
#Graphene device makes ultrafast light to energy conversion possible Converting light to electricity is one of the pillars of modern electronics, with the process essential for the operation of everything from solar cells and TV remote control receivers through to laser communications
In this vein, researchers from the Institute of Photonic Sciences (Institut de Ciències Fotòniques/ICFO) in Barcelona have demonstrated a graphene-based photodetector they claim converts light into electricity in less than 50 quadrillionths of a second.
pulse-shaped laser to provide the ultrafast flashes of light, along with an ultra-sensitive pulse detector to capture the speed of conversion to electrical energy.
#Canon's new four million ISO video camera leaves nothing in the dark Ever been poking around in low-light with your camera
Such farms would use a similar artificial lighting and growing media and the earthbound projects could benefit from the experience gathered on the ISS.
The nanosheets were fixed then in place using a process called light-triggered in-situ vinyl polymerization where the light helped to stick them together within the polymer.
The nanosheets create electrostatic resistance in one direction, but not the other. The polymer"legs"not only lengthened
#Finnish tech could let smartphones"see"gas Smartphones are already able to monitor things such as light, sound, movement and geographical location.
that uses light to identify the type and amount of gases in air samples. The sensor is scaled a-down version of a Fabry-Pérot interferometer.
As such, it works by shining light of various wavelengths through an air sample. Different gases absorb those wavelengths at known rates,
so by analyzing how much of what type of light is absorbed, it possible to ascertain if a given gas is present,
and in what amount. Among other things, it has been suggested that the device could be used to measure carbon dioxide concentrations.
now that the US Department of energy's SLAC National Accelerator Laboratory has given the green light to start construction of the world's largest digital camera.
and includes a filter-changing mechanism and shutter for viewing different wavelengths from the near-ultraviolet to the near-infrared.
Since the electromagnetic radiation used by Bluetooth to transmit data does not easily pass through the human body,
Generally consisting of a flexible tube with a light source and an arrangement of lenses or small cameras in more modern devices the endoscope is a vital,
The resultant mixture was hardened then using ultraviolet light and put inside a 3d printer to print samples of replacement teeth.
Chief Scientist and project leader of Honda Research Institute USA Inc."Our approach combines novel nanomaterials with continuous UV LIGHT radiation in the sensor designs that have been developed in our laboratory by lead researcher Dr
We hope this will allow us to throw some light on what the other genes involved in schizophrenia are doing
and uses light pulses to control neurons. Just like a switch in your house turns your lights on and off,
light can be used to turn neurons on and off. Special light-sensitive channel proteins are added to specific neurons
and are activated then with focused lasers. However, the procedure gets tricky when it comes to cells deep inside the body.
scattering the light, and in order to reach certain cells, an optical fiber is implanted surgically. Sonogenetics is less invasive as low-frequency sound waves can pass through tissue
about the size of a few biological cells, the cloak reflected incoming red light differently at various locations, depending on how pronounced their features
as the light was reflected off the cloak like a mirror.""This is the first time a 3d object of arbitrary shape has been cloaked from visible light,
"said lead author Xiang Zhang of Berkeley Lab in a statement. Of course, this does mean that it is not a"true"invisibility cloak you are not seeing through an object,
But until now, scientists had struggled to find a way to create a light-based device that can store data for a significant period of time. here no point using faster processors
in a statement. ut we think using light can significantly speed this up. In this research
Pulses of light can change the material's state from an ordered to a random state, or crystalline to amorphous.
and directing different wavelengths of light down a silicon nitrate waveguide a single pulse can write
including finding ways to perform more tasks using light instead of electrical signals t
#Cancer drug Promises To Break down Barrier To HIV Cure Researchers have found a promising way of kicking the AIDS virus out of its hiding place in infected cells,
and give them a green light when they are n the zoneas well as analysing the wearer current biological signals,
excited by the light are accumulated in the negative electrode. In the future, experts intend to create a mart box
Wristify emits soft blue light when cooling you and warm orange light when heating you up.
Place an LED light and battery on special paper and draw a line with the marker to connect the light and battery.
Voila, the light comes on. Agic circuit marker contains silver, which makes the ink conductive,
People could turn the lights on and off by touching the posters. The innovative part of the technology is that it can print electric circuits on large paper a few meters wide.
It works by manipulating light, changing how light waves bounce off an object so that it cannot be detected by the eye. his is the first time a 3d object of arbitrary shape has been cloaked from visible light,
said lead author Xiang Zhang, director of Berkeley Lab Materials sciences Division. ur ultra-thin cloak now looks like a coat.
and can wrap around a three-dimensional object about the size of a few biological cells. he surface of the skin cloak was engineered meta to reroute reflected light waves
or sharp compared to the wavelength of light, because any shadows cast cannot be erased, Zeno Gaburro,
a physicist at the University of Trento in Italy, was quoted as saying in an accompanying article about the technology in the journal Science. he face that is dark does not see the light,
#Scientists Create LEDS From Food, Beverage Waste Most Christmas lights, DVD players, televisions and flashlights have one thing in common:
Fourier transform infrared spectroscopy, x-ray photoelectron spectroscopy, Raman and AFM imaging to determine the CDSVARIOUS optical and material properties. ynthesizing
and measures the refracted light with a photon sensor to find optical aberrations that affect eyesight.
Because the red and green light goes through different parts of the eye, aligning the two colors similarly demonstrates any optical aberrations.
scientists use a photocatalyst-a material that absorbs light from the sun and uses it to excite electrons to higher energy levels.
as it can only absorb energy from ultraviolet light. The Reading-led team used supercomputer simulations to look at many different candidates as potential photocatalysts for fuel production reactions.
NASA Earth Observatory) Emitted light Kathmandu Satellite Image-Emitted Light This satellite image shows the city of Kathmandu and its surrounding areas after the April 25 earthquake.
and the National oceanic and atmospheric administration, detected a decrease in emitted light over Kathmandu, based on a comparison between images taken pre-earthquake, on April 22, 2015,
The red and yellow colors indicate areas with the largest decrease in emitted light possibly because of electrical outages and damage to key infrastructure
and detected a decrease in emitted light over Kathmandu and its surrounding region. Image Credit:
and make sure to get as far away from city lights as you can, because light pollution will wash out the fainter meteors.
which measures the way that light interacts with the glass. They found that in some areas within the new glass,
and, as such, interacted with light in a similar way. Because the structure of glasses is usually random finding one of these materials that has most
getting as much of the light that hits the surface to go up "and away from the substrate is an engineer's goal.
the team has built a variety of sensor wafers that can detect everything from infrared light to particular chemicals in the environment.
The scientists teleported photons (packets of light) across a spool of fiber optics 63 miles (102 kilometers) long, four times farther than the previous record.
The experiment involved a near-infrared wavelength commonly used in telecommunications, the researchers said.""Only about 1 percent of photons make it all the way through 100 kilometers (60 miles) of fiber,
And in 2014, researchers at the University of Dundee in Scotland showed that acoustic holograms that act like a tractor beam could theoretically suck in objects."
Wavelength and intensity The size of the low-force region depends on the wavelength: The longer the wavelength, the larger the region of low pressure.
The sound intensity determines the maximum density of an object that can be pushed and pulled by the acoustic force,
but the sound waves operate at 40 kilohertz, at a wavelength of about 0. 4 inches (1 centimeters), well above the human hearing range but audible to dolphins and dogs."
the researchers loaded DNA strings coding for light producing proteins into the nanoparticles and had animals inhale them into their lungs.
and saw the light producing proteins create a glow that lasted for up to four months after a single administration,
A Raman spectroscopy probe then uses light to analyze the bacteria. In their studies the team was able to spot E coli
and for how long to shine the light that excites the brain cells. Now researchers from Georgia Tech
when to deliver light to maintain a desired level of activity. The system constantly adjusts
when to turn the light on and off depending on the signals received from the genetically modified cells.
Even when available for field-testing, white light microscopy tends to report many false positive diagnoses as well.
The hardware is equipped with a light source and magnifying lens that gives a phone camera lens excellent visualization of any abnormalities in the cervical tissue.
which allows a lot of light to pass through and makes these batteries almost completely transparent. But by changing the chemical makeup of the negative electrode,
and communicate through light pulses. The patent, numbered 9158133, gives a peek on the role contact lenses can play in the future.
They can use solar power or harvest energy from a beam of light. The patent does not mention batteries so these contacts have to constantly generate power.
The patent proposes using pulses of light invisible to the human eye which another device can read.
Raman spectroscopy and transport measurements on the graphene/boron nitride heterostructures reveals high electron mobilities comparable with those observed in similar assemblies based on exfoliated graphene.
The research was reported in the journal Nature Methods in a paper titled, ltrahigh-throughput single-molecule spectroscopy and spectrally resolved super-resolution microscopy,
Using the advanced capabilities at the UK synchrotron, Diamond Light source, the team were able to scrutinise the metal organic frameworks in atomic detail.
and conceal it from detection with visible light. Although this cloak is only microscopic in size,
The surface of the skin cloak was engineered meta to reroute reflected light waves so that the object was rendered invisible to optical detection
when the cloak is activated. his is the first time a 3d object of arbitrary shape has been cloaked from visible light,
The paper is titled n Ultra-Thin Invisibility Skin Cloak for Visible light. Xingjie Ni and Zi Jing Wong are the lead authors.
It is the scattering of light be infrared it visible , X-ray, etc.,from its interaction with matter that enables us to detect
For the past ten years, Zhang and his research group have been pushing the boundaries of how light interacts with metamaterials,
what it concealed was not. reating a carpet cloak that works in air was so difficult we had embed to it in a dielectric prism that introduced an additional phase in the reflected light,
when red light struck an arbitrarily shaped 3d sample object measuring approximately 1, 300 square microns in area that was wrapped conformally in the gold nanoantenna skin cloak,
the light reflected off the surface of the skin cloak was identical to light reflected off a flat mirror,
and the phase of the scattered light so that the object remains perfectly hidden, says co-lead author Zi Jing Wong,
The ability to manipulate the interactions between light and metamaterials offers tantalizing future prospects for technologies such as high resolution optical microscopes and superfast optical computers.
Invisibility skin cloaks on the microscopic scale might prove valuable for hiding the detailed layout of microelectronic components or for security encryption purposes.
which generates a light signal. The sensor does need not to be activated chemically and is rapid-acting within five minutes-enabling the targeted antibodies to be detected easily, even in complex clinical samples such as blood serum."
The light-generating DNA antibody detecting nanomachine is illustrated here in action, bound to an antibody o
a technique using electrons (instead of light or the eyes) to see the characteristics of a sample,
which reacts very rapidly to incident light of all different wavelengths and even works at room temperature.
It is the first time that a single detector has been able to monitor the spectral range from visible light to infrared radiation and right through to terahertz radiation.
this comparatively simple and inexpensive construct can cover the enormous spectral range from visible light all the way to terahertz radiation."
The detector can register incident light in just 40 picoseconds these are billionths of a second.
"Semiconductor substrates used in the past have absorbed always some wavelengths but silicon carbide remains passive in the spectral range,
therefore been able to increase the spectral range by a factor of 90 in comparison with the previous model, making the shortest detectable wavelength 1000 times smaller than the longest.
By way of comparison, red light, which has the longest wavelength visible to the human eye,
is only twice as long as violet light which has the shortest wavelength on the visible spectrum. This optical universal detector is already being used at the HZDR for the exact synchronization of the two free-electron lasers at the ELBE Center for High-power Radiation Sources with other lasers.
This alignment is particularly important for"pump probe"experiments, as they are called, where researcher take one laser for the excitation of a material("pump)
"and then use a second laser with a different wavelength for the measurement("probe")."The laser pulses must be synchronized exactly for such experiments.
So the scientists are using the graphene detector like a stopwatch. It tells them when the laser pulses reach their goal,
which reacts very rapidly to incident light of all different wavelengths and even works at room temperature.
It is the first time that a single detector has been able to monitor the spectral range from visible light to infrared radiation and right through to terahertz radiation.
this comparatively simple and inexpensive construct can cover the enormous spectral range from visible light all the way to terahertz radiation."
The detector can register incident light in just 40 picoseconds these are billionths of a second.
"Semiconductor substrates used in the past have absorbed always some wavelengths but silicon carbide remains passive in the spectral range,
therefore been able to increase the spectral range by a factor of 90 in comparison with the previous model, making the shortest detectable wavelength 1000 times smaller than the longest.
By way of comparison, red light, which has the longest wavelength visible to the human eye,
is only twice as long as violet light which has the shortest wavelength on the visible spectrum. This optical universal detector is already being used at the HZDR for the exact synchronization of the two free-electron lasers at the ELBE Center for High-power Radiation Sources with other lasers.
This alignment is particularly important for"pump probe"experiments, as they are called, where researcher take one laser for the excitation of a material("pump)
"and then use a second laser with a different wavelength for the measurement("probe")."The laser pulses must be synchronized exactly for such experiments.
So the scientists are using the graphene detector like a stopwatch. It tells them when the laser pulses reach their goal,
then convert that light into an electrical charge proportional to its intensity and wavelength. In the case of our eyes, the electrical impulses transmit the image to the brain.
"In this structure-unlike other photodetectors-light absorption in an ultrathin silicon layer can be much more efficient
and improve light absorption without the need for an external amplifier.""There's a built-in capability to sense weak light,
"Ma says. Ultimately, the new phototransistors open the door of possibility, he says.""This demonstration shows great potential in high-performance and flexible photodetection systems,"says Ma,
then convert that light into an electrical charge proportional to its intensity and wavelength. In the case of our eyes, the electrical impulses transmit the image to the brain.
"In this structure-unlike other photodetectors-light absorption in an ultrathin silicon layer can be much more efficient
and improve light absorption without the need for an external amplifier.""There's a built-in capability to sense weak light,
"Ma says. Ultimately, the new phototransistors open the door of possibility, he says.""This demonstration shows great potential in high-performance and flexible photodetection systems,"says Ma,
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