Popular Laser Pulses News and Current Events

Popular Laser Pulses News and Current Events, Laser Pulses News Articles.
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A damming trend
Hundreds of dams are being proposed for Mekong River basin in Southeast Asia. The negative social and environmental consequences -- affecting everything from food security to the environment -- greatly outweigh the positive changes of this grand-scale flood control, according to new research by Michigan State University. (2018-12-14)

Cooling by laser beam
A laser pulse that for a few picoseconds transforms a material into a high-temperature superconductor. Different experiments have unveiled this interesting phenomenon, with potential applicative implications. Research carried out by SISSA scientists a year ago had already provided several basic principles of the phenomenon. A new study published on (2018-06-08)

A laser that smells like a hound
University of Adelaide researchers have created a laser that can 'smell' different gases within a sample. Applications for the new device lie not just in environmental monitoring and detecting industrial contamination, but may eventually be used to diagnose disease by 'smelling' the breath. (2018-06-06)

Noninvasive stimulation device can help prevent migraine attacks
A migraine is much more than just a bad headache. Migraine symptoms, which can be debilitating for many people, are the sixth leading cause of disability, according to the World Health Organization. (2018-03-28)

Novel technology for anticancer drug delivery on demand
With the goal of minimizing the side effects of chemotherapy on healthy tissues, IBS scientists have developed novel nanocontainers able to deliver anticancer drugs at precise timing and location. They combines uniquely designed molecules and light-dependent drug release, which may provide a new platform to enhance the effect of anticancer therapeutics. (2018-03-09)

Spying on topology
Topological insulators are quantum materials, which, due to their exotic electronic structure, on surfaces and edges conduct electric current like metal, while acting as an insulator in bulk. Scientists from the Max-Born Institute for Nonlinear Optics and Short Pulse Spectroscopy (MBI) have demonstrated for the first time how to tell apart topological materials from their regular -- trivial -- counterparts within a millionth of a billionth of a second by probing it with ultra-fast laser light. (2019-10-02)

Engineering researchers use laser to 'weld' neurons
University of Alberta researchers have developed a method of connecting neurons, using ultrashort laser pulses -- a breakthrough technique that opens the door to new medical research and treatment opportunities. Neurons are cells in the nervous system that are responsible for transferring information between the brain and the rest of the body. The team is the first ever to find a way to bond neurons and in doing so, is giving researchers a powerful new tool. (2016-02-09)

Advanced Photonics, a new SPIE-CLP open-access journal, publishes its first issue
Today SPIE, the international society for optics and photonics, and Chinese Laser Press (CLP), published the inaugural issue of Advanced Photonics, a collaborative, open-access journal, featuring the most impactful fundamental and applied research across optics and photonics technologies. (2019-01-28)

Researchers achieve multifunctional solid-state quantum memory
Research team from CAS Key Lab of Quantum Information developed multi-degree-of-freedom multiplexed solid-state quantum memory and demonstrate photon pulse operation functions with time and frequency degree-of-freedoms. (2018-08-24)

The unbelievable speed of electron emission from an atom
In a unique experiment, researchers have clocked how long it takes for an electron to be emitted from an atom. The result is 0.000 000 000 000 000 02 seconds, or 20 billionths of a billionth of a second. The researchers' stopwatch consists of extremely short laser pulses. Hopefully, the results will help to provide new insights into some of the most fundamental processes in nature. (2017-11-13)

Scientists demonstrated 1.3 μm submilliamp threshold quantum dot micro-lasers on Si
A group of researchers from the Hong Kong University of Science and Technology and University of California, Santa Barbara, successfully demonstrated record-small electrically pumped micro-lasers epitaxially grown on industry standard (001) silicon substrates in a recent study. A submilliamp threshold of 0.6 mA, emitting at the near-infrared (1.3?m) was achieved for a micro-laser with a radius of 5 μm. The thresholds and footprints are orders of magnitude smaller than those previously reported lasers epitaxially grown on Si. (2017-09-18)

UCF researchers develop first sypersymmetric laser array
A team of University of Central Florida researchers has overcome a long-standing problem in laser science, and the findings could have applications in surgery, drilling and 3D laser mapping. (2019-02-28)

Mapping Biodiversity and Conservation Hotspots of the Amazon
Researchers have used remote sensing data to map out the functional diversity of the Peruvian Andes and Amazon basin, a technique that revealed hotspots for conservation. (2017-02-09)

Lead dressed like gold
Princeton researchers have taken a different approach to alchemists' ancient goal to transmute elements by making one material behave that another. Using computational methods, they demonstrate that any two systems can be made to look alike, even if just for the flash of a laser pulse. (2017-02-28)

Electron behavior under extreme conditions described for the first time
Researchers have modeled the actions of electrons under extreme temperatures and densities, such as those found within planets and stars. (2017-10-06)

Multiresponsive nanosurfactant constructs tiny chemical factory
IBS scientists have made a surfactant based on nanoparticle dimers, which is responsive to multiple stimuli. The nanosurfactant combines several characteristics of each 'active' molecular surfactant which allows a tremendous flexibility whereby liquid droplets can be manipulated. (2018-01-10)

Laser evaporation technology to create new solar materials
Researchers use lasers to blast solutions containing delicate organic compounds to grow new types of crystals for solar cells, light-emitting diodes and photodetectors. (2018-01-03)

Amplifier for terahertz lattice vibrations in a semiconductor crystal
In analogy to the amplification of light in a laser, vibrations of a semiconductor crystal, so called phonons, were enhanced by interaction with an electron current. Excitation of a metal-semiconductor nanostructure by intense terahertz (THz) pulses results in a ten-fold amplification of longitudinal optical (LO) phonons at a frequency of 9 THz. Coupling such lattice motions to propagating sound waves holds potential for ultrasound imaging with a sub-nanometer spatial resolution. (2019-04-03)

Optical tweezers steer a chemical reaction from just 2 atoms
Highlighting the fine level of control modern chemists possess, researchers have trapped two single atoms -- sodium and cesium -- in separate 'optical tweezers' and then maneuvered them together, resulting in a single molecule of sodium cesium (NaCs) with unique properties. (2018-04-12)

Light touch keeps a grip on delicate nanoparticles
Using a refined technique for trapping and manipulating nanoparticles, NIST researchers have extended the trapped particles' useful life more than tenfold. This new approach, which one researcher likens to (2012-05-03)

Annoyed by floating specks in your vision? You may soon be able to zap them away
Millions of people who put up with seeing annoying specks drift through their field of vision may now have a safe, high-tech solution to their problem. A study of patients who had laser treatment to vaporize these flecks and spots known as floaters, showed a very low complication rate, according to research presented today at AAO 2017, the 121st Annual Meeting of the American Academy of Ophthalmology. (2017-11-13)

New insight into how magma feeds volcanic eruptions
A novel research study by scientists at the University of Liverpool has provided new insights into how molten rock (magma) moves through the Earth's crust to feed volcanic eruptions. Using laboratory experiments involving water, jelly and laser imaging, researchers were able to demonstrate how magma magma flows through the Earth's crust to the surface through magma-filled cracks called dykes. (2018-02-22)

Physicists measured the properties of ultrashort X-ray pulses
Professor of Skobeltsyn Institute of Nuclear Physics, MSU and his foreign colleagues determined the physical parameters of ultrashort X-ray laser pulses with high temporary resolution. The results of the study were published in Nature Photonics journal. (2018-03-26)

Optical Atomic Clock: A long look at the captured atoms
In the case of one of the candidates for an optical clock which is developed at Physikalisch-Technische Bundesanstalt, an optical grating clock with strontium atoms, the loading of cold atoms into an optical grating has been optimized to such an extent that approx. 106 strontium atoms are loaded into the grating within 150 milliseconds at a temperature of a few microkelvin. There, the atoms remain stored for over one second and are available for a precision measurement of the optical frequency. (2008-02-05)

Beyond graphene: Advances make reduced graphene oxide electronics feasible
Researchers have developed a technique for converting positively charged (p-type) reduced graphene oxide (rGO) into negatively charged (n-type) rGO, creating a layered material that can be used to develop rGO-based transistors for use in electronic devices. (2017-03-30)

A shoe-box-sized chemical detector
A chemical sensor prototype developed at the University of Michigan will be able to detect 'single-fingerprint quantities' of substances from a distance of more than 100 feet away, and its developers are working to shrink it to the size of a shoebox. (2017-12-15)

First experiments at new X-ray laser reveal unknown structure of antibiotics killer
An international collaboration led by DESY and consisting of over 120 researchers has announced the results of the first scientific experiments at Europe's new X-ray laser European XFEL. The pioneering work not only demonstrates that the new research facility can speed up experiments by more than an order of magnitude, it also reveals a previously unknown structure of an enzyme responsible for antibiotics resistance. The scientists present their results in the journal Nature Communications. (2018-10-02)

Researchers develop breakthrough technique to combat cancer drug resistance
The ability for cancer cells to develop resistance to chemotherapy drugs -- known as multi-drug resistance -- remains a leading cause for tumor recurrence and cancer metastasis, but recent findings offer hope that oncologists could one day direct cancer cells to 'turn off' their resistance capabilities. (2018-02-08)

New laser achieves wavelength long sought by laser developers
Researchers at the University of Bath, United Kingdom have created a new kind of laser capable of pulsed and continuous mid-infrared (IR) emission between 3.1 and 3.2 microns, a spectral range that has long presented a major challenge for laser developers. The achievement could aid in the development of new uses for mid-IR lasers, which are currently used in applications such as spectroscopy, environmental sensing and detecting explosives. (2016-02-24)

New technique measures ultrashort laser pulses at focus
Lasers that emit ultrashort pulses of light are used for numerous applications, but the quality of the results is limited by distortions caused by lenses and other optical components that are part of the experimental instrumentation. Researchers have developed a system that tells researchers what types of aberrations are present, which allows them to create the desired pulse at the focus that's free of distortions. (2008-05-08)

Improving silver nanowires for FTCEs with flash light interactions
A Korean research team led by Professor Keon Jae Lee of the Materials Science and Engineering Department at KAIST and Dr. Hong-Jin Park from BSP Inc., has developed high-performance Ag NWs with strong adhesion on plastic using flash light-material interactions. (2017-04-04)

A new Bose-Einstein condensate created at Aalto University
Researchers at Aalto University, Finland are the first to create a Bose-Einstein condensate of light coupled with metal electrons, so-called surface plasmon polaritons. (2018-04-16)

Deep-brain exploration with nanomaterial
Studying deep brain tissues noninvasively is difficult. Now RIKEN scientists in Japan have developed a way to send light deep into the brain without invasive optical fibers. The method uses infrared light outside the head to activate upconversion nanoparticles (UCNPs). When these nanoparticles absorb near-infrared laser light, they emit visible photons to deep areas in the brain, allowing remote optogenetic stimulation or inhibition of neurons in the brain. (2018-02-08)

Microscopy: A space-time sensor for light-matter interactions
Physicists from Ludwig-Maximilians-Universitaet (LMU) in Munich have developed an attosecond electron microscope that allows them to visualize the dispersion of light in time and space, and observe the motions of electrons in atoms. (2017-11-30)

Death by volcano?
he discovery of anomalously high levels of mercury in rocks from the Ordivician geological period has led to a new interpretation of the ensuing mass extinction. A sequence of disturbances may have led to catastrophic cooling by reflective sulfate aerosols injected into the atmosphere by massive volcanism. The finding is important since aerosol cooling is under consideration as a way to temper global warming. (2017-05-29)

Attosecond physics: A keen sense for molecules
Munich based Laser physicists have developed an extremely powerful broadband infrared light source. This light source opens up a whole new range of opportunities in medicine, life science, and material analysis. (2018-02-23)

Mapping biodiversity and conservation hotspots of the Amazon
Researchers have used remote sensing data to map out the functional diversity of the Peruvian Andes and Amazon basin, a technique that revealed hotspots for conservation. (2017-01-26)

Researchers engineer ultra-sensitive temperature sensor
Material developed in Brazil measures temperatures in the range of 80-750 kelvin (-193 °C to 476 °C) and, as described in Scientific Reports, could be used in manufacturing and biological processes. Besides being an optical device, which makes unnecessary to have contact with the object, the sensor is equipped with a detector that can gauge how temperature affects the wavelength of light. (2018-01-11)

New dental imaging method uses squid ink to fish for gum disease
Squid ink could one day make getting checked for gum disease at the dentist less tedious and even painless. By combining squid ink with light and ultrasound, a team led by engineers at the University of California San Diego has developed a new dental imaging method to examine a patient's gums that is noninvasive, more comprehensive and more accurate than the state of the art. (2017-09-07)

Electrons used to control ultrashort laser pulses
We may soon get better insight into the microcosm and the world of electrons. Researchers at Lund University and Louisiana State University have developed a tool that makes it possible to control extreme UV light -- light with much shorter wavelengths than visible light. The new method uses strong laser pulses to direct the short bursts of light. (2017-03-21)

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