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Current Laser Pulses News and Events, Laser Pulses News Articles.
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Record-breaking laser link could help us test whether Einstein was right
Scientists from Australia have set a world record for the most stable transmission of a laser signal through the atmosphere. The team combined Aussie 'phase stabilisation' technology with advanced self-guiding optical terminals to 'effectively eliminate atmospheric turbulence,' an advance which could help test Einstein's theory of general relativity. (2021-01-22)

New blueprint for more stable quantum computers
Researchers at the Paul Scherrer Institute PSI have put forward a detailed plan of how faster and better defined quantum bits - qubits - can be created. The central elements are magnetic atoms from the class of so-called rare-earth metals, which would be selectively implanted into the crystal lattice of a material. Each of these atoms represents one qubit. The researchers have demonstrated how these qubits can be activated, entangled, used as memory bits, and read out. (2021-01-22)

Crystal structures in super slow motion
Laser beams are used to change the properties of materials in an extremely precise way. However, the underlying processes generally take place at such unimaginably fast speeds and at such a small scale that they have so far eluded direct observation. Göttingen researchers have now managed to film, for the first time, the laser transformation of a crystal structure with nanometre resolution and in slow motion in an electron microscope. The results were published in Science. (2021-01-22)

Bringing atoms to a standstill: NIST miniaturizes laser cooling
Scientists at the National Institute of Standards and Technology (NIST) have miniaturized the optical components required to cool atoms down to a few thousandths of a degree above absolute zero, the first step in employing them on microchips to drive a new generation of super-accurate atomic clocks, enable navigation without GPS, and simulate quantum systems. (2021-01-21)

Two-photon polymerization of PEGda hydrogel microstructure with low threshold power with green laser
The fabrication of shape-memory hydrogel scaffolds not only requires biocompatibility, micrometre resolution, high mechanical strength, but also requires a low polymerisation threshold in high-water content environment to incorporate microstructures with biological tissues. Towards this goal, scientists from China and australite developed a new hydrogel formula that full fills this goal and demonstrated water-responsive structures with a shape-memory effect at a micrometre scale. This work is of importance for the development future reversible microdevices in biomedical engineering. (2021-01-20)

Researchers improve data readout by using 'quantum entanglement'
Researchers say they have been able to greatly improve the readout of data from digital memories - thanks to a phenomenon known as 'quantum entanglement'. (2021-01-20)

Lasers create miniature robots from bubbles (video)
Robots are widely used to build cars, paint airplanes and sew clothing in factories, but the assembly of microscopic components, such as those for biomedical applications, has not yet been automated. Lasers could be the solution. Now, researchers reporting in ACS Applied Materials & Interfaces have used lasers to create miniature robots from bubbles that lift, drop and manipulate small pieces into interconnected structures. (2021-01-20)

Optical data transmission speed increased by a factor of at least 10,000
The Korea Institute of Science and Technology(KIST) announced that able to generate laser pulses at a rate at least 10,000 times higher than the state of the art. This achievement was accomplished by inserting an additional resonator containing graphene into a fiber-optic pulsed-laser oscillator that operates in the domain of femtoseconds. The data transmission and processing speeds are expected to increase significantly by applying this method to data communications. (2021-01-19)

Clocking electron movements inside an atom
Hard X-ray free-electron lasers (XFELs) have delivered intense, ultrashort X-ray pulses for over a decade. One of the most promising applications of XFELs is in biology, where researchers can capture images down to the atomic scale even before the radiation damage destroys the sample. In physics and chemistry, these X-rays can also shed light on the fastest processes occurring in nature with a shutter speed lasting only one femtosecond - equivalent to a millionth of a billionth of a second. (2021-01-19)

Experimental evidence of an intermediate state of matter between a crystal and a liquid
Scientists from the Joint Institute for High Temperatures Russian Academy of Sciences (JIHT RAS) and Moscow Institute of Physics and Technology (MIPT) have experimentally confirmed the presence of an intermediate phase between the crystalline and liquid states in a monolayer dusty plasma system. (2021-01-19)

Light-induced twisting of Weyl nodes switches on giant electron current
Scientists at the U.S. Department of Energy's Ames Laboratory and collaborators at Brookhaven National Laboratory and the University of Alabama at Birmingham have discovered a new light-induced switch that twists the crystal lattice of the material, switching on a giant electron current that appears to be nearly dissipationless. (2021-01-19)

Light-controlled Higgs modes found in superconductors; potential sensor, computing uses
Iowa State University's Jigang Wang and a team of researchers have discovered a short-lived form of the famous Higgs boson -- subject of a groundbreaking search at the Large Hadron Collider -- within an iron-based superconductor. This Higgs mode can be accessed and controlled by laser light flashing on the superconductor at trillions of pulses per second. (2021-01-19)

Shine on: Avalanching nanoparticles break barriers to imaging cells in real time
A team of researchers co-led by Berkeley Lab and Columbia University has developed a new material called avalanching nanoparticles that, when used as a microscopic probe, offers a simpler approach to taking high-resolution, real-time snapshots of a cell's inner workings at the nanoscale. (2021-01-13)

Wielding a laser beam deep inside the body
Robotic engineers led by Wyss Associate Faculty member Robert Wood, Ph.D., and postdoctoral fellow Peter York, Ph.D., at Harvard University's Wyss Institute for Biologically Inspired Engineering and John A. Paulson School for Engineering and Applied Science (SEAS) have developed a laser-steering microrobot in a miniaturized 6x16 millimeter package that operates with high speed and precision, and can be integrated with existing endoscopic tools. (2021-01-13)

Pulsed ultraviolet light technology to improve egg safety, help poultry industry
Pulsed ultraviolet light can be an effective alternative to some of the antimicrobial technologies now used by the poultry industry to kill pathogens on eggshells, according to Penn State researchers, who simulated production conditions to test the technology. (2021-01-13)

Researchers develop laser-based process to 3D print detailed glass objects
Researchers have developed a new laser-based process for 3D printing intricate parts made of glass. With further development, the new method could be useful for making complex optics for vision, imaging, illumination or laser-based applications. (2021-01-12)

Enlightening dark ions
Every field has its underlying principles. For economics it's the rational actor; biology has the theory of evolution; modern geology rests on the bedrock of plate tectonics. (2021-01-12)

Laser harmony
Would you like to capture a chemical transformation inside a cell live? Or maybe revolutionize microchips' production by printing paths in a layer that has a thickness of just 100 nanometers? These and many other goals can now be achieved with the latest femtosecond laser created by a team of scientists led by Dr. Yuriy Stepanenko. (2021-01-11)

Towards Exawatt-class lasers
Researchers from Osaka University propose a concept for next-generation ultra-intense lasers, possibly increasing the current record from 10 Petawatts to 500 Petawatts. (2021-01-11)

Chandra studies extraordinary magnetar
In 2020, astronomers added a new member to an exclusive family of exotic objects with the discovery of a magnetar. New observations from NASA's Chandra X-ray Observatory help support the idea that it is also a pulsar, meaning it emits regular pulses of light. (2021-01-08)

High-flux table-top source for femtosecond hard X-ray pulses
Researchers at the Max Born Institute (MBI) in Berlin have now accomplished a breakthrough in table-top generation of femtosecond X-ray pulses by demonstrating a stable pulse train at kilohertz repetition rate with a total flux of some 10^12 X-ray photons per second. (2021-01-07)

Breaking through the resolution barrier with quantum-limited precision
Researchers at Paderborn University have developed a new method of distance measurement for systems such as GPS, which achieves more precise results than ever before. Using quantum physics, the team led by Leibniz Prize winner Professor Christine Silberhorn has successfully overcome the so-called resolution limit. (2021-01-05)

First glimpse of polarons forming in a promising next-gen energy material
Polarons affect a material's behavior, and may even be the reason that solar cells made with lead hybrid perovskites achieve extraordinarily high efficiencies in the lab. Now scientists have used an X-ray free-electron laser to directly see and measure the formation of these ephemeral atomic lattice distortions for the first time. (2021-01-04)

Experiment takes 'snapshots' of light, stops light, uses light to change properties of matter
The team generated a movie of how light waves churn on their nanometer wavelength scale by imaging electrons that two light photons coming together cause to emit from the surface. (2020-12-23)

Quantum wave in helium dimer filmed for the first time
For the first time, an international team of scientists from Goethe University and the University of Oklahoma has succeeded in filming quantum physical effects on a helium dimer as it breaks apart. The film shows the superposition of matter waves from two simultaneous events that occur with different probability: The survival and the disintegration of the helium dimer. This method might in future make it possible to track experimentally the formation and decay of quantum Efimov systems. (2020-12-23)

Mapping out a transient atom
A new experiment provides better understanding of fundamental photo-induced processes with special importance for photocatalysis, photosynthesis and radiation damage (2020-12-22)

Scientists complete yearlong pulsar timing study after reviving dormant radio telescopes
While the scientific community grapples with the loss of the Arecibo radio telescope, astronomers who revived a long-dormant radio telescope array in Argentina hope it can help compensate for the work Arecibo did in pulsar timing. Last year, scientists at Rochester Institute of Technology and the Instituto Argentino de Radioastronom­ia (IAR) began a pulsar timing study using two upgraded radio telescopes in Argentina. They are releasing observations from the first year in a new study. (2020-12-21)

New phase for synthetic aperture microscopy
Although SAM is undoubtedly a promising approach, current implementations lack in both spatial resolution and frame rate to be useful for emerging applications. To address these issues, a team of researchers led by Renjie Zhou from The Chinese University of Hong Kong recently developed a novel SAM method. (2020-12-21)

Power boost thanks to gold lamellae
Terahertz light holds enormous potential for tomorrow's technologies. It might succeed 5G by enabling extremely fast mobile communications connections and wireless networks. The bottleneck in the transition from gigahertz to terahertz frequencies has been caused by insufficiently efficient sources and converters. A research team with the participation of HZDR has now developed a material system to generate terahertz pulses much more effectively than before. It is based on graphene, coated with a metallic lamellar structure. (2020-12-18)

When light and atoms share a common vibe
Scientists from EPFL, MIT, and CEA Saclay demonstrate a state of vibration that exists simultaneously at two different times. They evidence this quantum superposition by measuring the strongest class of quantum correlations between light beams that interact with the vibration. (2020-12-18)

2D material controls light twice stronger
POSTECH research team identifies second-harmonics generation interference in 2D heterobilayers. (2020-12-17)

Stevens creates entangled photons 100 times more efficiently than previously possible
Super-fast quantum computers and communication devices could revolutionize countless aspects of our lives -- but first, researchers need a fast, efficient source of the entangled pairs of photons such systems use to transmit and manipulate information. Researchers at Stevens Institute of Technology have done just that, not only creating a chip-based photon source 100 times more efficient that previously possible, but bringing massive quantum device integration within reach. (2020-12-17)

JILA's bigger and better 'tweezer clock' is super stable
JILA physicists have boosted the signal power of their atomic 'tweezer clock' and measured its performance in part for the first time, demonstrating high stability close to the best of the latest generation of atomic clocks. (2020-12-16)

New type of atomic clock keeps time even more precisely
An MIT-designed atomic clock uses entangled atoms to keep time even more precisely than its state-of-the-art counterparts. The design could help scientists detect dark matter and study gravity's effect on time. (2020-12-16)

Surgical and drug treatment options lead to similar outcomes for diabetic eye disease
Surgical and injectable drug approaches are equally effective for treatment of bleeding inside the eye from proliferative diabetic retinopathy (PDR), according to a National Eye Institute (NEI)-supported clinical study from the DRCR Retina Network (DRCR.net). (2020-12-15)

Not so fast!: controlling the speed of light bullets
Researchers from Osaka University accurately and arbitrarily control flying velocities of light bullets, offering new opportunities for optical and physical applications. (2020-12-14)

Temporal control of light echoes
Scientists at Paderborn University, the Technical University of Dortmund and the University of Würzburg have for the very first time succeeded in using laser pulses to precisely control 'photon echoes', which can occur when light waves superimpose on each other. The findings of the research have now been published in scientific journal Communications Physics, published by the Nature Publishing Group. (2020-12-14)

Artificial intelligence improves control of powerful plasma accelerators
Researchers have used AI to control beams for the next generation of smaller, cheaper accelerators for research, medical and industrial applications. (2020-12-11)

Trapping nanoparticles with optical tweezers
In new research published in EPJ E, Janine Emile and Olivier Emile at the University of Rennes, France, demonstrate a novel tweezer design, which enabled them to trap fluorescent particles just 200 nanometres across for the first time. (2020-12-11)

In your face: a compact RGB scanning projector for wearable displays and smart glasses
Scientists at the University of Fukui, Japan, have achieved remarkable progress in the development of an extremely compact RGB laser projector that can create a high definition (HD) projection image. Their device uses a waveguide-type coupler to produce perfectly aligned RGB output beams from three independent lasers and a microelectromechanical mirror to create high-resolution scanning images. With further refinements, this technology could become a mainstay in wearable displays such as smart glasses. (2020-12-10)

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