A minimally invasive laser procedure, performed under MRI guidance, has been shown to be safe and effective in reducing or eliminating seizures in patients with mesial temporal lobe epilepsy (MTLE). The procedure, known as SLAH, destroys the area of the brain responsible for seizure activity without harming neighboring tissue.
Smaller laser-plasma accelerators could accelerate particles to high energies, potentially reducing the cost of high-energy physics research and industrial applications. The new technology uses a combination of lasers to create an incoherent wakefield, which would allow for more sustainable and affordable accelerators.
Scientists at Vienna University of Technology create an 'optical synthesizer' that combines different frequencies to form a characteristic laser waveform, similar to music. This enables the creation of attosecond pulse radiation hundreds of times more intense than previous methods.
Researchers have developed a new concept for simplifying ultrafast lasers, enabling control over multiple parameters and excellent performance potential. The 'frequency domain optical parametric amplification' (FOPA) approach supersedes traditional time domain amplification schemes.
Researchers at Vienna University of Technology have successfully controlled the splitting of hydrocarbons into smaller fragments using femtosecond laser pulses. By manipulating the distribution of electrons, scientists can induce chemical reactions and select specific reaction paths.
Scientists at the University of Central Florida and Arizona are extending the length of a high-intensity laser beam by surrounding it with a secondary beam, sustaining the central beam for greater distances. The goal is to stimulate static charged particles in clouds, leading to rain and lightning activity.
Researchers have developed a new drug delivery method that targets cancer cells using nanoballoons encapsulating anti-cancer drugs. The nanoballoons release the drugs when struck by a red laser, limiting interactions with healthy bodily systems and reducing side effects.
Researchers at Uppsala University discovered a new type of cell communication that suppresses blood vessel formation and delays tumour growth. Fluctuating levels of the molecule NRP1 can inhibit VEGF signals, leading to delayed tumour growth and potentially complete inhibition if trans communication occurs early in tumour development.
Researchers at the Niels Bohr Institute developed a new optomechanical method that achieves extreme precision in measuring radio waves by avoiding noise with laser light. The detector can operate at room temperature, reducing the need for expensive cooling measures.
Researchers at Caltech have created a new laser that can carry vast amounts of information, increasing data transmission rates in optical-fiber networks. The high-coherence laser has a 20 times narrower range of frequencies than previous lasers, enabling faster and more efficient communication.
Researchers have developed a technological system to measure wind turbine oscillations from a distance of several hundred meters. The system uses a laser that automatically tracks the motion of rotor blades, collecting data on precise positions and building a model of rotary motion.
Researchers at the University of Adelaide have developed a new type of laser that can detect very low concentrations of gases in exhaled breath and the atmosphere. The laser's high power and efficiency make it suitable for detecting gases such as methane and ethane, which are important in global warming.
The LLCD mission demonstrated error-free communications during broad daylight, operating as well as any NASA radio system. It also showed that wind and atmospheric turbulence did not significantly impact the system, enabling reliable communications through thin clouds.
Pretreating intradermal vaccination with near-infrared laser light improves vaccine effectiveness by increasing immune system activity and survival rates in a mouse model. The treatment also increases antibody production and dendritic cell concentrations, indicating a safe alternative to chemical adjuvants.
Researchers at the Laboratory for Attosecond Physics have developed a system to precisely measure the duration of energetic electron pulses using laser fields. This allows for the investigation of ultrafast processes in atoms and molecules, providing insights into nature's smallest scales.
The Laser Communications Relay Demonstration (LCRD) mission aims to demonstrate reliable optical services. It will conduct a two-year demonstration of optical relay services to collect long-term performance data and provide necessary knowledge for future mission-critical systems.
A study published in JAMA found that simulation-based communication skills training had no effect on the quality of end-of-life care, but was associated with a small increase in patients' symptoms of depression. The researchers suggest that skills transfer from simulation training to actual patient care may be inadequate.
Studies have shown that laser treatment is effective in reducing scar height and redness, with a high success rate of 70% in treating both hypertrophic scarring and keloids. The use of specific lasers, such as the 585/595 nm pulsed-dye laser, has also been found to be particularly effective.
Researchers have achieved a quadruple intensity increase in terahertz quantum cascade laser, producing one watt of radiation. The new design uses two symmetrical lasers joined together, increasing the number of emitted photons and efficiency.
LLCD successfully transmitted data from lunar orbit to Earth at a rate of 622 Mbps, more than six times faster than previous radio systems flown to the moon. The demonstration validated laser communication technology for future space missions.
Researchers at NIST developed a novel method for measuring laser power by reflecting light off a mirrored scale, simplifying calibration and enabling on-site measurements. The technique enables accurate and fast measurement of high-power lasers with reduced costs.
A study found that lawsuits related to procedures when non-physicians operate the laser are increasing, particularly outside traditional medical settings. Non-physician operators, including nurse practitioners and medical assistants, were involved in 75.5% of hair removal lawsuits from 2004 to 2012.
Researchers at University of California, Santa Barbara, have devised a new method for creating high-power white light using a laser diode in combination with inorganic phosphors. The resulting lighting options are high in efficiency and have been shown to achieve a luminous flux comparable to current high-brightness white LEDs.
A new study by Dr. Peter Kronenberg and Prof. Olivier Traxer found significant discrepancies between advertised and measured laser fiber diameters, with some fibers being up to double the thickness promoted. The study's findings highlight the importance of accurate technical specifications in urology surgery.
Researchers at Michigan State University have developed a bomb-detecting laser that can identify micro traces of explosive chemicals on clothing and luggage. The low-energy laser uses two pulses to detect chemical frequencies, providing excellent sensitivity and robust performance on virtually all surfaces.
The LLCD experiment aims to validate and build confidence in laser communications, allowing for 3-D High Definition video transmissions in deep space. The technology has incredible application possibilities, enabling the transmission of hundreds of millions of bits of data per second from the moon to Earth.
Scientists at DESY's FLASH facility have successfully created an X-ray laser based on a solid, enabling the analysis of sensitive samples without destruction. The method utilizes the principle of stimulated emission to overcome the Auger process, which previously hindered the creation of compact X-ray lasers.
Physicists have built a theoretical construct of twisted atom beams, which can have potential applications in quantum communication and atomic processes. These beams were created by solving the non-relativistic Schrödinger equation for atoms driven by a laser field.
A new study by Jonah Berger and Raghuram Iyengar found that written conversations on Facebook lead to discussions of more interesting products and brands compared to oral conversations. This is because written communication allows consumers time to think before responding, enabling them to select more engaging topics.
Researchers at NC State University have developed a new method to measure the optical gain of MEH-PPV, a low-cost polymer that can amplify light. The new approach uses extremely short laser pulses, reducing thermal degradation and providing more accurate results.
Researchers at Vienna University of Technology have developed a method to steer the radiation emitted by a random laser into a pre-determined direction. This breakthrough allows for the creation of a new type of light source with potentially useful applications.
Physicists at NIST create high-Q resonators in a minute, significantly reducing production time. The technique enables the mass production of compact frequency combs for various applications.
Researchers used laser light pulses to study aerosol and cloud processes in atmospheric conditions. The results show that high-intensity laser pulses can increase the number of ice particles in cirrus clouds by up to a factor of 100 within seconds, intensifying their optical density and making them appear brighter.
Researchers at TUM developed a new laser technology that produces compact, efficient ultrashort pulses. The technology uses a 'rainbow' buffer to reshape continuous wave output into short intense pulses, enabling applications in biomedical imaging, material processing, and communications.
Researchers at the University of Michigan have successfully developed a new type of laser that uses electricity instead of light, requiring significantly less energy to operate. The device produces a coherent beam of light and has potential applications in various fields, including optical communication and medical surgery.
Scientists have developed a new gold-based solder that forms strong, liquid-tight seals when used in laser-welding cuts during intestinal surgery, potentially reducing complications and improving patient outcomes.
Researchers developed large ring laser gyroscopes six orders of magnitude more sensitive than commercial instruments. These devices can measure the Earth's rotation rate with unprecedented accuracy, capturing momentum exchange between atmosphere, hydrosphere, and lithosphere.
Researchers found that laser-assisted lipolysis can reduce fat bulk and tighten skin, providing a more effective alternative to traditional liposuction. The minimally invasive treatment uses targeted energy to melt fat without affecting surrounding tissue, resulting in faster recovery times and improved results.
A team of physicists has proposed a new laser system inspired by telecommunications technology to accelerate particles in particle accelerators like the Large Hadron Collider. The system aims to reduce size and cost, making it critical for future high-energy physics.
New simulations uncover flaw in using hollow cones to guide energetic electrons to fuel pellets for laser-driven fusion. Researchers at Ohio State University found that thicker cones hinder the process due to neutralizing effect of free electrons in dense plasma.
A recent NIST test found that nearly 90% of green laser pointers and about 44% of red pointers tested were out of compliance with federal safety regulations. The tests also showed that many commercial laser pointers emit more visible power than allowed under the Code of Federal Regulations.
Postdoctoral researcher Nina Lanza discovered a consistent chemical signature in Martian rocks sampled by the Curiosity rover's ChemCam instrument during its first 90 days on Mars. The signature appears after five laser blasts, leading to theories about dust or geological coatings on the planet's surface.
Researchers have enhanced the ability of MEH-PPV polymer to confine light by reducing energy thresholds for laser production. The 'sandwich' approach limits exposure to oxygen and prevents degradation due to photo-oxidation.
The Lunar Laser Communication Demonstration (LLCD) mission will demonstrate laser communications from lunar orbit to Earth at six times the rate of modern-day radio systems. The system uses a highly reliable infrared laser and sophisticated pointing technology to accurately target ground stations across distances of up to 238,900 miles.
Researchers demonstrate acceleration of electrons by a laser in free space, a significant breakthrough with implications for fusion as a new energy source. The capture-acceleration scenario, proposed by Yu-kun Ho's group, explains how a tightly focused laser can create a channel for electrons to receive energy gain.
Researchers find that hot electrons generated by laser pulses cause ultrafast demagnetization in nickel, not the light itself. The study suggests a new possibility for spintronics research.
The National Institute of Standards and Technology (NIST) has developed a novel chip-scale instrument using carbon nanotubes to measure laser power with high accuracy. The mini-radiometer achieves this by absorbing light over a broad range of wavelengths and converting it to heat, allowing for precise measurements.
INRS researchers are working on a compact particle accelerator that uses laser wakefield acceleration to produce ultra-short and coherent light sources. This technology has the potential to advance photonics research in Canada and develop new technologies for clinical settings.
Scientists with NASA's Lunar Reconnaissance Orbiter (LRO) successfully transmitted an image of the Mona Lisa to the spacecraft from Earth using laser pulses. The team achieved simultaneous laser communication and tracking, paving the way for future high-speed data transfer at planetary distances.
Researchers at TU Vienna have successfully controlled the splitting of large molecules with up to ten atoms using ultra-short laser pulses. The technique involves influencing the movement of electrons, which in turn affects the atomic nuclei, allowing for targeted control over specific elemental chemical reactions.
A team of scientists using the world's most powerful X-ray laser has revealed the three-dimensional structure of a key enzyme that enables the single-celled parasite causing African trypanosomiasis, also known as sleeping sickness. This discovery paves the way for designing new drugs to inhibit the parasite without harming humans.
An international team discovered that the interaction between hot electrons and cool ions in graphite is significantly slower than previously thought, leading to a deeper understanding of planetary evolution and laser-driven fusion. The findings have wide implications for material processing, inertial confinement fusion, and astrophysi...
A robotic laser system developed by Carnegie Mellon University and CTC uses high-powered lasers to remove coatings from fighter and cargo aircraft. The system promises to reduce labor, waste volume, environmental risk, and overall cost, making it an environmentally superior alternative to traditional methods.
Scientists have developed a method to prevent 'light shifts' in atomic energy levels using pulsed radiation. The 'hyper' Ramsey excitation scheme suppresses the effect, allowing for more accurate measurements and potentially greater accuracy in optical clocks.
By using high-powered X-ray laser, researchers stripped a record 36 electrons from a xenon atom, achieving a previously unachievable positively charged state. This breakthrough will help create new states of matter and produce higher-quality images of nano-world objects.
Researchers at the University of Innsbruck propose a novel method for powering lasers through heat, which could provide internal cooling and revolutionize microchip technology. The concept involves using temperature gradients to separate cold and warm areas in the laser, allowing for efficient energy transfer.
A compact, portable Raman spectrometer using a green laser pointer detects extremely minute traces of hazardous chemicals in real-time. The system's modular design enables rapid field deployment to disaster zones and areas with security concerns.
The Johns Hopkins Bloomberg School of Public Health's Center for Communication Programs has received a five-year, $108 million grant from the US Agency for International Development. The project aims to build the capacity of local organizations in developing countries to design and implement effective health communication projects.
Researchers developed a Parental Academic Support Scale (PASS) to assess parent-teacher communication. The scale focuses on five topic areas, with parents most frequently discussing academic performance and using email as the primary mode of communication.
Biologists at Ruhr-Universität used a combination of laser microdissection and RNA-seq to analyze gene activity in the entire genome of certain fungi. They found that gene expression differs between tissue types, with some genes active only in specific tissues.