A study investigates the impact of femtosecond laser-induced damages on olfactory ensheathing cells, revealing that cellular activity can be controlled easily. The research suggests four reasons for the formation of femtosecond laser-induced calcium waves and proposes cell damage and recovery mechanisms.
A Princeton-led team discovered a new mechanism for making electronic materials emit laser beams, potentially leading to more efficient lasers with applications in environmental monitoring and medical diagnostics. The new laser phenomenon has some interesting features, including reduced photon absorption and improved performance.
The K-State Macdonald Lab is shifting its focus to ultrafast laser science, exploring its potential for molecular engineering, healthcare and energy innovations. Researchers are working to develop optimal laser characteristics to control reactions within molecules.
A new study by George Mason University found that nearly half of US states lack a state-level emergency plan or make it difficult for the public to access one. The study graded and ranked the state emergency operations plans on their communication components, finding that only two states received a perfect score.
Researchers found that photodynamic therapy, combining a topical photosensitizer and laser treatment, increases collagen levels and produces other skin changes in sun-damaged skin. The treatment may be particularly effective for skin with severe sun damage.
A study found laser therapies to be safer when used separately, with more effective leg hair removal. Alexandrite lasers showed long-term efficacy, but caused higher pain severity and hyperpigmentation compared to Nd:YAG lasers.
A new study shows that a sensitive laser instrument developed at the Idaho National Laboratory can detect minuscule traces of cells in Martian minerals. The technique uses a 'point-and-shoot' laser method to preserve more of the rock and reduce contamination risk, with high sensitivity crucial for NASA's search for life on Mars.
A study found that physician-patient communication training using the Four Habits Model can have a positive impact on the delivery of end-of-life care. The training increased professional satisfaction among physicians and enhanced their ability to express condolences, advance care planning discussions, and manage family emotions.
Researchers at UC San Diego have developed laser-produced light sources for next generation Extreme Ultraviolet Lithography (EUVL), which could make the process more efficient, simpler, and cheaper. This breakthrough may lead to advancements in flash memory chips, enabling denser and faster storage.
A new laser-powered treatment has been shown to kill a wide range of bacteria, including antibiotic-resistant strains, without causing significant heat damage. The treatment uses indocyanine green dye activated by near-infrared light, which penetrates deep wounds and increases the area cleansed.
A team of Japanese scientists has designed the world's first optical pacemaker for laboratory research, utilizing powerful laser pulses to regulate heart muscle cell contractions. This breakthrough technique may aid in understanding uncoordinated heart contractions and developing anti-fibrillation drugs.
Researchers have doubled the efficiency of infrared lasers in the mid-infrared wavelength range, which could enable next-generation laser-based defense systems and commercial applications like trace chemical analysis and pollution monitoring. The advancements were achieved through improvements to material quality, design, and fabrication.
Researchers at City College of New York (CCNY) have developed new near-infrared broadband lasers with tunability ranges around triple those of earlier crystals. The lasers can operate in two telecom windows, spanning 460 nanometers, and have potential applications in telecommunications, biomedical imaging, and remote sensing.
Researchers developed a device to measure complex ultrashort light pulses in space and time at the focus of lenses, addressing distortions caused by optical components. The SEA TADPOLE system uses interferometry to determine pulse shape and intensity changes in space and time, enabling accurate correction for aberrations.
Scientists have developed a record-breaking ultrafast laser that can aid in the search for Earthlike planets. The new laser offers high speed, short pulses, and high average power, making it ideal for boosting the sensitivity of astronomical tools.
Researchers at MGH have developed a new laser treatment that targets blood vessels to remove tumors while preserving and restoring vocal quality. Over 25 patients have been treated, with all being cancer-free up to 5 years after treatment.
Researchers successfully triggered electrical activity in thunderclouds by aiming laser light at them, generating plasma filaments that conducted electricity. The technology has potential applications in studying lightning strikes and evaluating the sensitivity of airplanes and critical infrastructure.
Researchers have successfully fired photons back and forth between a space satellite and a ground-based station, demonstrating the possibility of a secure quantum communication channel. The achievement marks an important step towards global communication via satellites using quantum mechanics.
Researchers at the University of Leeds have increased the operating temperature of a terahertz quantum cascade laser by nearly ten degrees, bringing handheld devices a step closer to reality. This breakthrough could unlock opportunities in fields like industrial process monitoring, atmospheric science, and medicine.
Providing patients with e-mail access to their surgeon appears to improve communication without affecting patient satisfaction. Most e-mails sent addressed one issue, with popular topics including general information and postoperative recovery.
A new laser beam made in a University of Michigan laboratory has set a record for intensity, measuring 20 billion trillion watts per square centimeter. The intense beam could help scientists develop better proton and electron beams for radiation treatment of cancer and explore new frontiers in science.
Using a theoretical model, researchers have shown how a hydrogen molecule responds to laser pulses by creating a changing musical chord. The movement of the two protons in the molecule creates different frequencies, which are similar to notes in a musical chord.
A team of researchers at Duke University has successfully transferred encoded information from a laser beam to sound waves and back again, opening the door for ultra-fast optical communications networks. The new method uses stimulated Brillouin scattering to create acoustic vibrations that can retain data for brief intervals.
Researchers at Harvard University have developed a compact and portable Quantum Cascade Laser sensor for fast detection of chemicals with broad tuning capabilities, enabling ultra-sensitive chemical sensing and revolutionizing applications in homeland security, medical diagnostics, and environmental sensing.
The collaboration aims to separate skin layers, decontaminate tissue, and speed up tissue cleaning using the Raydiance USP laser platform. This project has the potential to increase the supply of dermal tissues, resulting in better outcomes for more patients.
A study published in The Lancet found that fenofibrate reduces the frequency of first laser treatment for macular oedema and proliferative DR by 31% and 30%, respectively. These findings suggest additional mechanisms of benefit beyond lipid-lowering effects, potentially additive to blood glucose and blood pressure control.
A new laser technique uses femtosecond pulses to selectively destroy viruses and bacteria, including those causing AIDS and hospital infections. The treatment is non-toxic to human cells, offering a promising solution for disinfection and disease treatment.
Researchers from Harvard University have demonstrated a laser with unprecedented detail, capable of resolving chemical composition of samples like cells. This device combines Quantum Cascade Lasers with optical antenna nanotechnology, enabling new ultrahigh spatial resolution microscopes for chemical imaging.
A study found that skin cooling during laser treatment increased the risk of hyperpigmentation in dark-skinned individuals. The cooled sides were three times more likely to become hyperpigmented than the uncooled sides, according to a report published in Archives of Dermatology.
Researchers at Johns Hopkins Medicine have developed a new method to eliminate viruses from blood using low-power lasers. The technique selectively targets and destroys viruses while preserving normal human cells.
A Canadian study found that physicians who score poorly on the patient-physician communication portion of their national licensing examination are more likely to receive complaints from patients. The study, which included over 3,400 physicians, analyzed data and found a significant correlation between low communication scores and incre...
Researchers at UC-Santa Barbara have built the world's first mode-locked silicon evanescent laser, paving the way for integrated circuits that combine lasers and electronic functions on a single chip. This technology enables higher data transmission speeds, lower power consumption, and more compact devices.
By creating a mode-locked silicon evanescent laser, researchers have demonstrated the ability to produce stable short pulses of laser light at high repetition rates, up to 40 GHz, suitable for high-speed data transmission and other optical applications.
Researchers at the University of Texas at Austin are developing a new tool to improve LASIK surgery outcomes by measuring eye tissue stiffness using tiny bubbles generated inside eye tissue. The technology could also provide a new treatment for presbyopia, a age-related difficulty focusing on close objects.
Researchers at Northwestern University have developed a new type of laser that can emit over 700 milli-Watts of continuous output power, a factor of two increase from competing technology. The Quantum Cascade Laser has a 10-18% wall-plug efficiency, making it suitable for widespread deployment and low-cost production.
Researchers used high-tech lasers to test their effects on root canals and found they reduced bacteria amounts. The laser was also effective in eliminating bacteria and removing debris from the canal walls.
A study by University of Missouri-Columbia researchers reveals a shift in the communication discipline towards more women authors and collaborative research. The study found that articles by female authors outnumbered those by men around 2000 and that single-authored articles have decreased significantly since the 1960s.
The Linac Coherent Light Source (LCLS) will be the world's first X-ray free electron laser, producing pulses of light one billion times brighter than current sources. The device will enable scientists to discover new states of matter and probe chemical reactions in real-time.
Researchers at Yokohama National University demonstrate a highly efficient room-temperature nanolaser that produces stable, continuous streams of near-infrared laser light. The device uses a photonic crystal design to achieve its high efficiency, enabling applications in future miniaturized circuits.
Researchers at Kansas State University are developing a new laser-like X-ray source that can capture fast motion in the atomic world. The technology could be used to quickly determine if a suspicious package contains dangerous chemicals.
A tiny spectrometer has been designed and demonstrated at NIST, offering precision laser calibration for atomic physics research. The device could replace table-top-sized instruments and improve instrumentation used to measure length, chemicals, or atmospheric gases.
Researchers at Argonne National Laboratory successfully trapped radium atoms in a magneto-optical trap, leveraging the unexpected help of room temperature blackbody radiation. This achievement marks a significant milestone in studying time-reversal violation and has implications for physics beyond the Standard Model.
Researchers have built micrometer-sized solid-state lasers where a single quantum dot plays a dominant role in device performance. Correctly tuned, these microlasers switch on at energies in the sub-microwatt range, enabling highly efficient optical devices for telecommunications and computing.
Researchers at the University of Rochester have created a laser-based technique that measures multiple chemicals in body fluids in under 60 seconds, offering non-destructive and fast testing capabilities. The technique uses Raman spectroscopy and low-refractive-index tubes to improve signal strength and accuracy.
Researchers at Purdue University have developed a digital holographic imaging system that uses laser light to observe the effects of an anticancer drug on living tissue. The system detects changes in organelle motion within cancer cells, resulting in reduced shimmer and improved diagnostic capabilities.
Researchers at CU-Boulder have developed a new technique to generate laser-like X-ray beams, which could improve medical imaging resolution by a thousand times. The technique uses a powerful laser to pluck an electron from an atom and then slam it back into the same atom, generating a weak but directed beam of X-rays.
Researchers used virtual robots to study the evolution of communication in social organisms, finding that genetically similar individuals and group-level selection drive rapid communication evolution. In contrast, low-relatedness colonies with individual-level selection led to deceptive communication signals and decreased colony perfor...
Researchers at UCSB's Solid State Lighting and Display Center have achieved lasing operation in nonpolar gallium nitride semiconductors, demonstrating the world's first nonpolar blue-violet laser diodes. These devices have numerous commercial applications, including high-density optical data storage for high definition displays and video.
Scientists have developed a technique to accurately measure and control extremely short laser pulses, allowing them to track and manipulate electrons at the atomic level. The new method enables precise reconstruction of individual femtosecond pulses, opening up new possibilities for sub-atomic research.
Researchers use digital signal processing methods to eliminate echoes and scatter, enabling high-speed data transfer through the atmosphere. The approach provides fiber optic quality signals for improved air-to-air and ground-to-air communication links.
The Free-Electron Laser produced a 14.2 kilowatt beam of laser light at an infrared wavelength of 1.61 microns, shattering another power record. This achievement supports the Navy's vision for a high-power FEL as part of a ship-based weapon system.
Researchers at Penn School of Medicine found that low-intensity laser treatment is ineffective in preventing complications of AMD or vision loss. Daily supplements of vitamins and minerals remain the only established way to decrease the risk of vision loss for people with large drusen.
A study by OHSU eye doctor William Mathers found a higher risk of suffering vision loss from contact lenses compared to laser vision correction surgery. This contradicts traditional assumptions that contact lenses are safer than laser surgery, highlighting the importance of proper care and cleaning.
Researchers have developed a laser-based technology that can rapidly detect and identify many types of bacteria, making it three times faster and one-tenth as expensive as current methods. A second innovation uses chlorine dioxide gas to kill pathogens on produce, offering a highly effective and efficient solution.
Researchers at Lawrence Berkeley National Laboratory and University of Oxford have achieved a record-breaking acceleration of electron beams to 1 billion electron volts in 3.3 centimeters using laser wakefield acceleration. This breakthrough opens the door to compact high-energy experiments and superbright free-electron lasers.
Researchers from UCSB and Intel built the world's first Hybrid Silicon Laser using standard silicon manufacturing processes, combining Indium Phosphide for light emission and silicon for light routing. This breakthrough addresses the last major barrier to producing low-cost, high-bandwidth silicon photonics devices.
A new type of diode laser, called quantum cascade lasers (QCLs), may revolutionize aircraft protection by emitting high-power light at specific wavelengths. The QCLs can operate at room temperature and have a power conversion efficiency of 10 percent, making them ideal for widespread use in infrared countermeasure systems.
Kurt Gibble's paper analyzes the speed of an atom after absorbing a photon of light and shows that photons in narrow laser beams deliver less momentum than those in wide beams. This discovery has implications for atomic clocks, which use microwaves to achieve high accuracy, potentially allowing them to be even more precise.
Researchers have achieved net optical cooling of erbium-doped materials using laser radiation, overcoming technical difficulties associated with this phenomenon. This breakthrough enables the development of new devices such as high-power optical fibre lasers and medical diagnostic techniques.
Scientists at the University of Illinois have developed a device that generates coherent ultrasonic waves, allowing them to study laser dynamics and measure material properties. The 'uaser' has potential applications in modeling and studying laser behavior, as well as sensing changes in materials.