With this technology a low-power laser beam is directed at the tumor where a small amount of magnetic iron-oxide nanoparticles are present either by injecting the particles directly into the tumor
Sufficient heat is generated then locally by the laser light raising the tumor temperature rapidly to above 43 degrees Celsius
so they can be detected by a photon laser light. The laser light heats the nanoparticles to at least 43 degrees Celsius to kill the cancer cells ultimately leaving all the other cells in the body unharmed.
The procedure can ultimately be carried out by the patient following training to direct a small laser light device to the affected area for a specified amount of time two to three times a day.
This method can ultimately improve the success rate as well as cut costs to the patient. This gives point
and using an optical cavity to amplify the intensity of the output to a usable level.
"but you need a powerful laser, and, even so, the material needs to be a many micrometers
The researchers'optical cavity was able to increase the output wave's intensity by more than a thousand times."
The team used a laser to excite the plasmonic resonance of specific particles produced in the reaction.
The paper describes how two laser beams beating at a specific frequency are used to drive chemical bonds to vibrate in sync.
By focusing these laser beams onto the nanodiamond, a high-resolution CARS image is generated. Using an in-house built microscope,
The ability to mold inorganic nanoparticles out of materials such as gold and silver in precisely designed 3-D shapes is a significant breakthrough that has the potential to advance laser technology microscopy solar cells electronics environmental testing
but we are now attempting to use near-infrared laser light to improve the tissue penetration and move toward on-demand cancer therapy.
The incident laser light determines whether the light emitted by the particle travels left or right in the glass fibre.
When a particle that is coupled to the glass fibre is irradiated with a laser in such a way that it emits light of a particular sense of rotation,
earlier the group developed the Pulsed laser deposition technique (PLD)# for this building the materials one atomic layer at a time.
heated the surface with a laser beam, and then recorded the temperature evolution of the sample."
when the radius of the laser beam used to heat the metal coated crystals was above ten microns,
#Nanotube cathode beats large pricey laser Scientists are a step closer to building an intense electron beam source without a laser.
that completely eliminates the need for a room-sized laser system. Tests with the nanotube cathode have produced beam currents a thousand to a million times greater than the one generated with a large pricey laser system.
The technology has extensive applications in medical equipment and national security since an electron beam is a critical component in generating X-rays.
Traditionally accelerator scientists use lasers to strike cathodes in order to eject electrons through photoemission. The electric and magnetic fields of the particle accelerator then organize the electrons into a beam.
The tested nanotube cathode requires no laser: it only needs the electric field already generated by an accelerator to siphon the electrons off a process dubbed field emission n
The material is made from a collection of nanocavities and you can tune the absorption just by changing the size of the nanocavities Chou says.
Another key characteristic of the new material Chou says is that it is matched well to existing manufacturing technology.
Novel applications of'quantum dots'including lasers biological markers qubits for quantum computing and photovoltaic devices arise from the unique optoelectronic properties of the QDS
With the help of a prism, the researchers shine laser light into the microsphere. The light is reflected repeatedly at the internal surface of the sphere until, ultimately,
"The researchers use a direct laser writing method called two-photon lithography to"write"a three-dimensional pattern in a polymer by allowing a laser beam to crosslink
The parts of the polymer that were exposed to the laser remain intact while the rest is dissolved away, revealing a three-dimensional scaffold.
Using a laser to excite electromagnetic waves called plasmons at the surface of the wire the researchers found that the Mos2 flake at the far end of the wire generated strong light emission.
2 In LPTP, the organic photovoltaic sample is illuminated with a laser pulse, which results in a temporary high-voltage that decays over a time from nanosecond to seconds.
The researchers used a handheld device resembling a laser pointer that can detect Raman nanoprobes with very high accuracy.
"Our experimental demonstration of such junctions between two-dimensional materials should enable new kinds of transistors, LEDS, nanolasers,
#Tiny laser sensor heightens bomb detection sensitivity New technology under development at the University of California,
Because of this, the researchers are hopeful that their plasmon laser sensor could detect pentaerythritol tetranitrate, or PETN, an explosive compound considered a favorite of terrorists.
The new device builds upon earlier work in plasmon lasers by Zhang's lab that compensated for this light leakage by using reflectors to bounce the surface plasmons back and forth inside the sensor similar to the way sound waves are reflected across the room
"The difference in intensity is similar to going from a light bulb for a table lamp to a laser pointer,
which is described this week in the journal Nature Communications, uses a form of Raman spectroscopy in combination with an intricate but mass reproducible optical amplifier.
"The optical sensor uses Raman spectroscopy, a technique pioneered in the 1930s that blossomed after the advent of lasers in the 1960s.
a two-coherent-laser technique called"coherent anti-Stokes Raman spectroscopy,"or CARS. By using CARS in conjunction with a light amplifier made of four tiny gold nanodiscs,
"The two-coherent-laser setup in SECARS is important because the second laser provides further amplification,
"Zhang said.""In a conventional single-laser setup, photons go through two steps of absorption and re-emission,
and the optical signatures are amplified usually around 100 million to 10 billion times. By adding a second laser that is coherent with the first one,
the SECARS technique employs a more complex multiphoton process.""Zhang said the additional amplification gives SECARS the potential to address most unknown samples.
Another key component of the SECARS process is the device's optical amplifier, which contains four tiny gold discs in a precise diamond-shaped arrangement.
which they toughened by annealing it using a rapid-burst ultraviolet laser. Careful optimization of this procedure yielded regular arrays of silver nanospheres on top of the silicon surface,
with sphere size and distribution controlled by the laser annealing conditions. Next, the nanosphereilicon complex was immersed into a solution of hydrogen peroxide and hydrofluoric acid mixture that eats away at silicon atoms directly underneath the catalytic silver nanospheres.
They also are exploring using lasers to precisely shrink the plastic in specific patterns. Nam first had the idea for using Shrinky Dinks plastic to assemble nanomaterials after seeing a microfluidics device that used channels made of shrinking plastic.
#Nanoparticles could provide easier route for cell therapy UT Arlington physics researchers may have developed a way to use laser technology to deliver drug and gene therapy at the cellular level without damaging surrounding tissue.
the team paired crystalline magnetic carbon nanoparticles and continuous wave near-infrared laser beams for in
and Mohanty used a 50 to 100 milliwatt laser and the same carbon nanoparticle, which absorbs the beam,
continuous wave near-infrared laser and the nanoparticle to permeate the cell membrane without killing the cells.
Scientists looking to create a path into the cell without employing a virus also have experimented with using UV-visible light laser beams alone.
A significant advantage of the new method is that the near-infrared light absorption of the nanoparticle can be used to selectively amplify interaction of low power laser with targeted tissue
and"laser induced-damage to non-targeted cells along the irradiation path can be avoided, "the report says.
This new form of solid stable light-sensitive nanoparticles called colloidal quantum dots could lead to cheaper and more flexible solar cells as well as better gas sensors infrared lasers infrared light emitting diodes and more.
The sensors developed by the Cambridge team are made using laser light, which organises metal nanoparticles into alternating layers in thin gel films to produce the sensors in a matter of seconds.
The use of lasers means that the sensors can be manufactured easily at scale.""These sensors can be used to screen for diabetes in resource-poor countries,
and scientists are already using lasers to illuminate nanoscale samples during AFM scans. The problem with that approach says veteran NSMM researcher Pavel Kabos of the Advanced High-frequency Devices Program in PML's Electromagnetics Division is that the laser has to shine in from the side.
As a result you get cast shadows and significant uncertainty as to exactly what area is being illuminated.
And of course the laser and its mounting take up a great deal of space. With the new design the illumination will be applied directly over the probe tip at the same place on the sample that is being exposed to the microwave signal.
Researchers from the University of Cambridge have used this relationship, in combination with powerful lasers and nanopatterned gold surfaces
The sensing mechanism, designed by Dr Ventsislav Valev and Professor Jeremy Baumberg from the Cavendish Laboratory, in collaboration with colleagues from the UK and abroad, uses a nanopatterned gold surface in combination with powerful lasers.
By using powerful lasers however, second harmonic generation (SHG) chiroptical effects emerge, which are typically three orders of magnitude stronger.
"By using nanostructures, lasers and this unique twisting property of light, we could selectively destroy the unwanted form of the molecule,
"Such a laser patternable highly nonlinear thin film, about one hundredth of a human hair, has not been achieved by any other material,
Using a laser as a pen they created microstructures on the graphene oxide film to tune the nonlinearity of the material."
on which everything can be fabricated with laser and then it is automatically integratable.""Current manufacturing methods in semiconductor labs require expensive cleanrooms to fabricate photonic chips.
The fabrication and laser writing of this photonic material is simple and low cost.""Using this new method,
and the Colorado School Of mines it uses a laser vibrometer and a sonic beam to identify how the bomb's casing vibrates.
Mix it w/laser tag in a pre-built arena. Paint the environment however you want it to look to match the geometry of the playing field in reality.
if implemented with something like Virtusphere (virtusphere. com) being part of one of those laser-tag/game centers plus it would require a lot less floor space than laser tag
The Zebedee is a laser scanner not an infrared scanner like the Kinect or most of the other 3-D scanners we come across.
The laser scanner sits on a spring bouncing comically and uncontrollably back and forth pointing all over the place as it does.
The heavy lifting of the Zebedee is done in software as all that conflicting laser data is converted to a 3-D map.
And this you might want to look at just for the eye candy of a second generation Skylon using laser heated hydrogen to get into orbit. http://nextbigfuture. com/2013/09/propulsion-lasers-for-large-scale. html One error in this article
and etched by laser it would be cheap to produce. The device is also scalable:
#Using Lasers To Save Earth's Cultural Monuments History is unwritten by the destruction of great artifacts.
Preserving modern wonders for posterity is the main inititiative of Cyark a nonprofit that uses 3-D laser scanning to create a digital archive of the world s cultural heritage sites.
Key to Cyark is a portable eye-safe laser scanner made by Cyark founder Ben Kacyra.
The scanner is a LIDAR system which is like radar except instead of bouncing back radio waves it uses lasers.
LIDAR systems existed before Cyark but they were used mainly in labs where someone would bring an object
and get it scanned. Parts of the music video for Radiohead's House of cards were recorded this way.
This picosecond timer gives the laser scans accuracy down to a millimeter. With the technology already made it took a tremendous act of destruction to inspire its use in historical preservation.
and lasers to provide detailed travel maps capturing the curve of the road and details down to a centimeter accuracy.
which two laser beams scan over a sample. One beam arouses fluorescent molecules to glow while the second beam suppresses all other fluorescence except for that in a nanometer-sized area.
and laser motion sensors could be sold alongside build-it-yourself weather monitoring kits and robot birds.
#Lasers Reveal Underground'Super Henge'Near the prehistoric Stonehenge monument archeologists have found the#buried traces of a super henge more than 4900 feet in circumference.
They beamed radar and lasers into the ground and wheeled scanners over a vast area to study subtle changes in the Earth's magnetic field.#
a laser beam is moved in a computer-controlled three-dimensional manner within the epoxy resin layer thus curing the resin locally.
It is equipped with multiple sensors (a big LIDAR on its roof is probably doing most of the work)
The video for our upcoming IROS 2013 paper illustrates this algorithm using robots equipped with laser turrets.
#LIDAR finds a lost city in Cambodia Using LIDAR TECHNOLOGY to create terrain maps archaeologists have uncovered a whole city in Cambodia by discovering unexplained â##bumpsâ#.
In Cambodia where unexploded land mines from previous wars remain LIDAR mapping is particularly helpful. Interesting video g
We opted instead for constructing the chassis out of laser-cut acetal plastic a higher-powered flight motor and a new propeller.
The Delphi car a modified Audi SUV has no fewer than 6 4-plane LIDARS and an even larger number of radars.
LIDAR has more resolution but does not see as far and does not directly give you speed.
they were able to use laser spectroscopy and dynamical modeling to watch the light-harvesting process in action,
says Valerio Pruneri, a laser physicist at the Institute of Photonic Sciences in Barcelona, Spain,
When zapped with an intense pulse of laser light GST film changes its atomic structure from an ordered crystalline lattice to an morphousjumble.
or amorphous order CD or DVD drive shines low-intensity laser light on a disk and tracks the way the light bounces off.
generated using laser beams, and is 100 times stronger than that of the world strongest magnets.
A superfluid with loopsthe team first used a combination of laser cooling and evaporative cooling methods, originally co-developed by Ketterle, to cool atoms of rubidium to nanokelvin temperatures.
the researchers used a set of lasers to create a crystalline array of atoms, or optical lattice.
The electric field of the laser beams creates what known as a periodic potential landscape, similar to an egg carton,
ultrahigh magnetic field, using laser beams to push atoms around in tiny orbits, similar to the orbits of electrons under a real magnetic field.
and two additional laser beams to control the motion of the atoms. On a flat lattice, atoms can easily move around from site to site.
In this scenario, atoms could only move with the help of laser beams. ow the laser beams could be used to make neutral atoms move around like electrons in a strong magnetic field
Using laser beams, the group could make the atoms orbit, or loop around, in a radius as small as two lattice squares, similar to how particles would move in an extremely high magnetic field. nce we had the idea,
All we had to do was take two suitable laser beams and carefully align them at specific angles,
and a half to optimize the lasers and electronic controls to avoid any extraneous pushing of the atoms,
which could make them lose their superfluid properties. t a complicated experiment, with a lot of laser beams, electronics,
Germanium lasers, demonstrated by Kimerling group in 2010, offer a prime example. ne of the big issues today is the light source,
Our germanium laser would be a way to do that. It's at the research rather than the commercial stage at this point,
IT has been granted patents both on the laser and on a method to integrate similar devices into an optical circuit,
Overall, the MIT patent portfolio in silicon photonics has grown to more than 60 patents that cover functions such as on-chip lasers, modulators and demodulators, and sensors.
#Tiny terahertz accelerator could rival huge free-electron lasers Physicists in the US, Germany and Canada have built a miniature particle accelerator that uses terahertz radiation instead of radio waves to create pulses of high-energy electrons.
Potential applications include free-electron lasers, whereby the electrons are used to create coherent pulses of X-rays.
In this latest work Emilio Nanni and colleagues at the Massachusetts institute of technology (MIT), the Center For free-Electron Laser Science (CFEL) at DESY in Germany and the University of Toronto have created a terahertz accelerator module with the aim
The researchers now plan to focus on developing a free-electron laser (FEL) based on terahertz technology,
but this would be"a low-cost system that can be integrated into laboratories with modest lasers"says Nanni.
#Lasers burn holes in quantum security systems A new way to hack quantum-cryptography systems has been unveiled by physicists in Canada.
The method involves using a powerful laser to physically damage the optical equipment used to send
the team shone an infrared laser at Alice's photodetector for up to 30 s after disconnecting the fibre channel,
or completely insensitive to light the latter requiring at least 1. 7 W of laser power. They repeated the experiment using six detectors,
The group also used the same laser to weaken the security of"quantum coin tossing,
But Makarov and colleagues were able to enlarge the size of the pinhole by exposing it to a 10 second pulse from a 3. 6 W near-infrared laser.
arguing that testing against laser damage and other optical attacks will become"an obligatory part of security assurance for future quantum communications".
might also be vulnerable to laser damage. Better detectors Norbert Lütkenhaus of the University of Waterloo, who was involved not in the current work,
suggesting that an additional detector could be installed to register the light from any damaging laser beams.
generated using laser beams, and is 100 times stronger than that of the world strongest magnets.
A superfluid with loops The team first used a combination of laser cooling and evaporative cooling methods,
the researchers used a set of lasers to create a crystalline array of atoms, or optical lattice.
The electric field of the laser beams creates what known as a periodic potential landscape, similar to an egg carton,
ultrahigh magnetic field, using laser beams to push atoms around in tiny orbits, similar to the orbits of electrons under a real magnetic field.
and two additional laser beams to control the motion of the atoms. On a flat lattice, atoms can easily move around from site to site.
In this scenario, atoms could only move with the help of laser beams. ow the laser beams could be used to make neutral atoms move around like electrons in a strong magnetic field
Using laser beams, the group could make the atoms orbit, or loop around, in a radius as small as two lattice squares, similar to how particles would move in an extremely high magnetic field. nce we had the idea,
All we had to do was take two suitable laser beams and carefully align them at specific angles,
and a half to optimize the lasers and electronic controls to avoid any extraneous pushing of the atoms,
which could make them lose their superfluid properties. t a complicated experiment, with a lot of laser beams, electronics,
This research outcome potentially allows for great flexibility in the design and optimization of electronic and optoelectronic devices like solar panels and telecommunication lasers.
such as those obtained by LIGO, the Laser interferometry Gravitational-wave Observatory, a Caltech-and-MIT-led project searching for signs of gravitational waves,
Semiconductor lasers typically emit into elliptical beams that are really hard to work with and the new metasurface optical components could replace expensive optical systems used to circularize the beams.
a Yale postdoctoral researcher in applied physics. xamples include more sensitive biological and chemical sensors, lasers with higher output power,
In wakefield approaches, balancing the skittish plasma bubble requires terawatt or petawatt lasers, tricky micromachinging,
and femtosecond laser timing. In Nature Communications, researchers describe an alternative: a compact device that uses pulses of terahertz (THZ) radiation.
and the Deutsches Electronen Synchrotron (DESY, the German Electron Syncrotron), the Center For free-Electron Laser Science (CFEL), the Max Planck Institute for Structure and Dynamics,
the frequency is high enough that the plasma breakdown threshold for surface electric fields increases The terahertz approach also allows them to use readily available picoseconds lasers.
Intel Realsense, like Microsoft more famous Kinect cameras, work by projecting a signal (a laser
By shining a focused laser on the cells, they can selectively open these channels, either activating or silencing the target neurons.
OCSD differs from other space-based laser communication systems because the laser is mounted hard to the spacecraft body,
and the orientation of the Cubesat controls the direction of the beam. This makes the laser system more compact than anything previously flown in space.
The Cubesat will evaluate the ability to point a small satellite accurately as it demonstrates data transfer by laser at rates of up to 200 mb per second--a factor of 100 increase over current high-end Cubesat communications systems.
The second OCSD mission is scheduled to be launched in February 2016 6
#Cure for cancer might accidentally have been found, and it could be malaria Scientists might have made accidentally a huge step forward in the search for a cure for cancer discovering unexpectedly that a malaria protein could be an effective weapon against the disease.
a more precise method than laser sintering and one used by NASA for various experiments.
Using direct metal laser sintering technology, the laser beam fuses the titanium powder into a solid form.
Layer by layer, the 3d printer tranforms titanium alloy powder into cups with micro-hole structure,
or DLP 3d printing, is either a UV laser or projector, respectively. However, in order to make full use of the smartphone exising features,
the OLO simply replaces expensive lasers and projectors with the phone own LED display. When you place your smartphone underneath the glass surface of the resin container,
Their distributed network of fabrication includes Fab Labs and Maker Space, equipping all participants with digital fabrication machines such as laser cutters, 3d printers,
K2m 3d Lamellar Titanium Technology uses advanced 3d printing technology to mimic lamellar structures and rowspinal implants with titanium powder and a high-energy laser beam.
and they are made by using a laser to melt blown powder metal, which is deposited then layer by layer to manufacture a 3d printed object.
According to the current roadmap, B-PET will launch a recycled PET-based powder for laser sintering processes in 2015
Using a laser measurement system the team was able to show the varying shapes from pre-to post-inflation with a Grasshopper plug-in. Once the printed material was cured
which includes a photovoltaic cell using a high-quality semiconductor crystal similar to the ones for lasers
if you loved playing with lasers and optics and applying them to biological questions. Zipfel still has the world first two-photon microscope in a case near his office,
who built the femtosecond laser needed to make two-photon microscopy work. Solving the mystery of how circuits in the brain produce behavior,
and reported by Laser Focus World magazine. Colors seen from flowers in nature and chemical materials are caused by wavelength selective light absorption in organic molecules.
and laser scanning microscopes, X-ray microscopes, electron and ion microscopes and spectrometer modules. Users are supported for software for system control, image capture and editing.
and Applied materials. ee also leveraging all the knowledge in lasers and optics for this specific Raman-based method. hebi calls Optokey product a iochemical nose,
in which laser light is irradiated on a ultra-thin metal point. This creates highly bundled light a hundred times smaller than the wavelength of light,
By observing the back-scattered portion of the laser light one can achieve a spatial resolution in the order of the near-field magnitude, that is, in the nanometer range.
The sample can be stimulated with laser, pressure, electric field or magnetic field pulses. The principle was tested at the HZDR on a typical laboratory laser as well as on the free-electron laser FELBE.
First tests on the new terahertz source TELBE which provides extremely short electric and magnetic field pulses for excitation,
Furthermore, the microscope modular aspect allows several radiation sources such as non-coherent monochromatic or polychromatic sources and tunable lasers,
This is the promise of new DOE facilities relying on free electron lasers (FEL), such as the Linac Coherent Light source (LCLS) at Stanford.
The experiments, at the Linac Coherent Light source (LCLS) X-ray laser at the Department of energy's SLAC National Accelerator Laboratory
They used a robotic system developed at SSRL to study the crystals at SLAC's LCLS, an X-ray laser that is one of the brightest sources of X-rays on the planet.
although the Ruby laser was demonstrated first 55 years ago (which emitted coherent beams in the red region of the spectrum at 694 nm),
the shortest wavelength laser in widespread use is the excimer laser around 193 nm. This means that in 55 years
the wavelength of widely accessible lasers has been reduced by less than a factor of 4. The University of Colorado work employs coherent,
or laser-like, beams of EUV light with wavelength at 30 nm nearly an order of magnitude shorter that the excimer, achieving very high-contrast images with a resolution of 40 nm laterally
The team deep-ultraviolet and EUV laser-like source technology could be used for defect detection or other nanometrology applications either as a stand-alone solution or as an inline tool.
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