Los Alamos National Laboratory researchers have developed a new method to create quantum dots that emit laser light more efficiently, using less power. The treatment involves adding extra electrons to the dots, allowing them to produce laser light without external stimulation.
The researchers have demonstrated the first laser cavity that can confine and propagate light in any shape imaginable, even pathways with sharp bends and angles. This new design could enable higher speed optical communication technologies.
Researchers at the University of Houston have made an unexpected discovery that leads to a new theory of liquid streaming. The researchers generated a liquid stream using a pulsed laser and found that gold nanoparticles played a crucial role in creating the phenomenon, which they called acoustic streaming.
The NASA Mars 2020 rover will feature a new SuperCam instrument with Raman spectroscopy capabilities, allowing it to detect carbon-based signatures of organic materials. The instrument uses a conduction-cooled laser system and can produce 1000 shots in one burst, significantly improving sampling efficiency.
A new study published in Human Brain Mapping found that older adults' brains show more bilateral communication than younger brains. This increased communication helps maintain healthy cognitive function despite the negative effects of aging.
Researchers at HZDR develop a method to control the number of electrons fed into the process, achieving ideal conditions for improved beam quality. This leads to peak currents of up to 150 kiloamperes, exceeding modern large-scale research accelerators.
A collaboration between University of Central Florida and Yale has discovered novel optical behaviors in laser cavities, providing a unique window into fundamental physics. The research demonstrates the role of gain clamping in governing optical responses and reveals fundamental aspects of causality's limits.
Researchers have made an important step toward understanding optically controlled magnetic storage devices, finding that laser light plays a key role in toggling magnetisation alignments. The study reveals the formation of a ring-shaped region around the tiny laser spot and its impact on the material's temperature distribution.
Researchers developed laser-driven plasma acceleration using low-energy, ultrashort mid-infrared laser pulses, producing relativistic electron beams. The team's findings demonstrate the potential of long-wavelength femtosecond lasers for compact and high-repetition-rate accelerators.
Researchers at Rice University have successfully turned wood into an electrical conductor by creating laser-induced graphene, a form of the atom-thin carbon material. The process involves heating a thin film pattern onto a block of pine using a standard industrial laser, producing high-quality graphene foam bound to the wood surface.
A study published in JAMA Ophthalmology found that laser treatment, YAG vitreolysis, significantly improved symptoms of eye floaters in 54% of patients, with 53% reporting complete improvement. The procedure also showed improvements in quality of life, including general vision and independence.
Scientists successfully demonstrated quantum communication between a satellite and a ground station, enabling the development of future satellite constellations. The technology uses lasers for high power efficiency and smaller terminals, facilitating the adoption of quantum key distribution for secure information transmission.
Researchers from PTB and JILA develop a laser with an unprecedented 10 mHz linewidth, setting a new world record. The precision of the laser allows for accurate measurements in optical atomic clocks and spectroscopy.
Physicists have observed changes in a vision-enabling interaction between light and matter by focusing laser light to unprecedented brightness. The team discovered unique X-ray pulses with potential for medical, engineering, scientific, and security applications.
Researchers observed a 50% enhancement in second harmonic generation from BiCoO3 crystal upon THz laser pulse irradiation. This effect occurs on the 100 femtosecond time scale, suggesting potential applications in ultrafast optoelectronic devices.
Weidong Zhou is developing a high-power semiconductor laser that is compact, efficient and power-scalable. The goal of this project is to address the challenges associated with scaling laser power towards kilo- and mega-watts level while maintaining excellent beam quality, high-energy efficiency and compact size.
Scientists used the world's most powerful X-ray laser to create a 'molecular black hole' that pulled in surrounding electrons, stripping away more than 50 electrons from a single atom. The results provide fundamental insights into how to better plan and interpret experiments using intense X-rays.
Two Clemson University engineers, John Ballato and Lin Zhu, are receiving a combined $3.2 million from the Department of Defense to create high-energy lasers that can be used as weapons. The military has already deployed some lasers as defensive weapons to shoot down incoming missiles and drones.
The University of Strathclyde researchers have developed a highly efficient laser amplifier using plasma, achieving an amplification gain of over eight orders of magnitude. This breakthrough could lead to the development of ultra-intense and ultra-short laser pulses at a lower cost.
Researchers from Florida Atlantic University developed a new tool to measure couples' communication in dementia. The Verbal and Nonverbal Interaction Scale-CR (VNIS-CR) tool evaluates social and unsociable behaviors, enabling caregivers to improve communication and mental health.
NIST physicists have solved the puzzle of controlling molecular ions using quantum logic, a technique that also drives an experimental atomic clock. The new method achieves effective control of molecules as laser cooling and other techniques can control atoms.
A team of researchers at the University of Strathclyde has successfully created man-made space radiation in a laboratory setting using laser-plasma-based accelerators. This breakthrough could enable safer and more reliable space exploration by testing devices and equipment in controlled conditions on Earth.
Researchers at Kyushu University's CENTER FOR ORGANIC PHOTONICS AND ELECTRONICS RESEARCH (OPERA) reported a breakthrough in developing new organic thin-film lasers that can continuously emit light for up to 30 ms, outperforming previous devices.
A review of medical literature by NYU researchers found that only 23.9% of studies on doctor-patient communication mentioned hearing loss, highlighting a significant gap in understanding its impact on care. The study suggests that simple strategies can mitigate the negative effects of hearing loss on patient communication.
Researchers at the University of Missouri have developed a new technique, sonoillumination, which uses ultrasonic pulsation to improve laser transmission through skin tissues. This technique has the potential to reduce safety concerns in laser dermatology and provide safer, more effective treatment options for patients.
Osaka University researchers used sharp, ultra-short laser pulses to generate charged particles, achieving beams with higher energy and more precise control. The study challenged conventional models, finding that lower-intensity laser light can produce high-energy charged particles.
Using supercomputers, researchers simulate phase transformations in metal surfaces induced by lasers. This helps predict material properties for practical applications such as engineering of new metals.
A new study published in Scientific Reports reveals that laser energy deposited into plasma produces two low-energy but high-charge electron beams and a single high-energy beam. The beams can have thousands of times more charge than the high-energy beam, offering a novel source of charged particle beams.
NASA's Laser Communications Relay Demonstration (LCRD) aims to establish a high-speed internet in space, enabling faster data rates and smaller communication systems. The technology has the potential to revolutionize space communications for missions to the moon, Mars, and beyond.
Researchers at Louisiana State University and Lund University have developed a new method to direct short bursts of x-ray light using strong laser pulses. This breakthrough allows for precise control over the properties of the light, including direction and pulse duration.
Researchers at FAU successfully generate electron packets with lengths of 1.3 femtoseconds, enabling imaging of atomic movements on ultra-short time scales. The method uses laser-controlled acceleration, deceleration, and deflection of electrons, paving the way for ultra-high resolution electron microscopes.
Researchers found that involving interdisciplinary partners improved risk communication and public safety during earthquakes. Key recommendations include engaging with decision makers, developing clear warning messages, and minimizing negative impacts of inaccurate messages.
A hospital-wide training program improved doctors' communication with patients, leading to a 9% increase in patients' perceptions of care. The program outlined standardized best practices for doctors to follow, including basic courtesies and scripted questions.
Researchers from Warsaw Laser Centre generate high-energy ultrashort laser pulses in an optical fiber using a novel solution. The new method is stable and ideal for industrial applications, offering improved processing times.
Scientists have developed a new technology that uses laser-generated bubbles to create 3D images in a liquid screen, allowing viewers to see the display from all angles. The bubbles are created using femtosecond laser pulses and can be colored by changing the illumination light.
Researchers have gained insight into the atomic and nuclear structure of heavy, radioactive elements for the first time. The technique involves laser ionization, which significantly increases sensitivity and accuracy, allowing for measurements of atoms per second.
The study examines the impact of ultrafast laser pulses on ferromagnetic La0.67Sr0.33MnO3 thin films with epitaxial grown BiFeO3 coating layers. Researchers observe distinct oscillations in magnetization precession, which are attributed to the suppression of anisotropy by BFO coating layers and exchange interaction across the interface.
Researchers have made significant progress in developing stable laser sources for third-generation gravitational wave detectors, enabling the detection of weaker signals from distant cosmic events. The development includes a new type of pre-mode cleaner that compensates for astigmatism, making designs like the Einstein Telescope possible.
A study of provider-patient communication during weight-management visits found that quality benchmarks were not met, documented, or communicated in up to 42% of cases. The study highlights the need for improved communication and documentation to promote healthy lifestyle changes in overweight children.
Researchers evaluated the effects of laser tissue welding on simulated spina bifida repair in rabbits, finding that it did not cause damage to spinal cord or skin tissue. The study suggests a potential breakthrough in fetal surgical repair procedures, offering a possible solution for reducing complications and improving outcomes.
Researchers at INRS have developed a new pulsed laser with an ultra-narrow spectral width of 105 MHz, breaking the optical bandwidth record. The compact architecture enables full-spectrum resolution in the radio frequency domain, opening up opportunities for on-chip integration and novel sensing applications.
Researchers have demonstrated a new type of laser using bound states in the continuum, which can be more compact and energy-efficient. This technology has the potential to revolutionize telecommunications and computing applications.
Researchers employ a new 'stop-action' technique using laser pulses to measure complex electron interactions in materials. They discovered an unusual form of efficient energy loss at a specific energy level, which may play a role in superconductivity.
A German research team developed a high-power, pulsed optical laser synchronized with the XFEL pulses, offering tunability in wavelength and pulse duration. The laser system will be published in Optics Express and is designed for experiments at atomic-scale measurements.
Scientists at IBS & KAIST create a new method for producing graphene using laser annealing technology, which can separate complex compounds like SiC into ultrathin elements of carbon and silicon. The technique reaches the same results as traditional methods but at lower temperatures, making it more efficient and scalable.
Researchers at FAU successfully control electron pulses using laser delays, exhibiting quantum path interference and opening doors for time-resolved electron microscopy. The discovery could lead to complex electron pulses in the future, revolutionizing surface coherence research.
Scientists at TU Wien develop new approach to controlling electron emission using two laser pulses fired at a metal tip. They demonstrate the ability to switch electron emission on and off on extremely short time scales. This breakthrough opens up possibilities for controlled x-ray generation.
Researchers found that Ceftriaxone reduces synaptic disruption and clears neuronal lines of communication in mice with Alzheimer's disease. Amyloid plaques prevent cell communication, leading to nerve cell death. The antibiotic restores glutamate levels, mostly restoring neuronal activity.
A team led by Professor Cordt Zollfrank from the Technical University of Munich created the first controllable random laser based on cellulose paper. The laser uses a biogenic structure to scatter light in different directions, but can still be controlled and localized.
Scientists at Berkeley Lab created a single device that can act as both a laser and an anti-laser, enabling flexible operation in optical communication. The device uses parity-time symmetry to balance amplification and absorption, allowing for control over light behavior.
Scientists at MIT and Harvard University developed a new imaging technique called LASE microscopy, which uses tiny particles to create sharper images of deep tissue and cells. The particles emit laser light when stimulated by a laser beam, resulting in higher-resolution images.
A new survey tool has been developed by Indiana University and Regenstrief Institute to measure the communication experiences of family members of hospitalized patients. The Family Inpatient Communication Survey focuses on two dimensions of communication: conveyance of information and emotional support.
A microscopic sensor has been developed at TU Wien that can identify different gases simultaneously using a laser and detector in one. The sensor, made of a sophisticated layered system of materials, emits light in the infrared range and measures its strength to detect gases with unique 'fingerprints'.
Photonics may provide solutions to NASA's pressing challenges in future spaceflight, including improved space communications and reducing mission payloads. Laser communications have the potential to increase data rates at least 10 to 100 times better than RF systems.
Researchers at Kansas State University have successfully recorded a chemical reaction that happens as fast as a quadrillionth of a second using a laser. This breakthrough enables scientists to understand and control chemical reactions, leading to better control and potential applications in multiple areas of science.
The superradiant laser uses synchronized emissions of light from strontium atoms to improve atomic clock performance and create precise 'rulers' for space science. The laser's output is expected to be less sensitive to noise, making it sharper as a precision tool.
A study published in Neurosurgical Focus reports the use of a minimally invasive laser procedure to treat large, 'inoperable' brain tumors, including glioblastomas. The procedure combines laser interstitial thermotherapy with a small craniotomy to remove cooked tumors and prevent swelling.
Researchers have discovered 'spatiotemporal optical vortices,' or STOVs, which are 3-D ring structures generated by high-intensity lasers. These structures have the potential to manipulate particles moving at the speed of light and may be useful for designing powerful microscopes and more efficient telecommunication lines.
Researchers successfully created conditions for a fusion yield five times higher than current record using the OMEGA laser. The direct-drive approach, used by LLE scientists, is promising for achieving fusion as an energy source.
Researchers from North Carolina State University and Intel Corporation developed a new chip design that accelerates core-to-core communication using built-in hardware. The core-to-core communication acceleration framework (CAF) improves communication performance by two to 12 times, reducing execution times from start to finish.