Articles tagged with Gas Lasers
Physicists at the University of Colorado Boulder have demonstrated a new kind of vacuum ultraviolet laser that is 100 to 1,000 times more efficient than existing technologies. The device could enable scientists to observe phenomena currently out of reach, such as following fuel molecules in real time as they undergo combustion, spottin...
Physicists at Harvard SEAS have created a compact, on-chip mid-infrared pulse generator that can emit short bursts of light without external components. This device has the potential to speed up gas sensor development and create new medical imaging tools.
Researchers developed a compact, solid-state laser system that generates 193-nm coherent light, marking the first 193-nm vortex beam produced from a solid-state laser. This innovation enhances semiconductor lithography efficiency and opens new avenues for advanced manufacturing techniques.
Scientists have created cost-effective lasers for the extended Short-Wave Infrared (SWIR) range by utilizing colloidal quantum dots. This breakthrough addresses scalability and affordability challenges in current laser technologies, enabling diverse applications such as hazardous gas detection, eye-safe LIDAR systems, and advanced phot...
Researchers developed a new spectroscopy method using tunable lasers, enabling precise tracking of the laser's color at every point in time. The technique offers higher power and spectral stability compared to existing methods, making it suitable for various applications including LIDAR and spectroscopy.
Researchers use water as a nonlinear medium to create a supercontinuum white laser covering an impressive spectral range from UV to far infrared. The resulting ultrabroadband source has potential in ultrafast spectroscopy, hyperspectral imaging, and scientific research.
Researchers successfully fabricate a microlens on a single-mode polarization-stable VCSEL chip using 2-photon-polymerization 3D printing, reducing beam divergence from 14.4° to 3° and enabling compact optical gas sensors with improved performance.
A Princeton University team has developed a method to detect and quantify greenhouse gas leaks using drones and lasers. The approach localizes emissions sources to within a meter and can be used to spot leaks in hard-to-access areas.
A new type of optical manipulation has been developed, using laser light to pull macroscopic objects. The researchers designed a graphene-SiO composite structure specifically for laser pulling, which creates a reversed temperature difference when irradiated with a laser beam.
Researchers achieved a breakthrough in generating terahertz waves with a conversion efficiency of 0.35% using a dual-color femtosecond laser filamentation technique. The study investigated the influence of ambient gas species on THz generation efficiency and demonstrated improved performance in argon gas.
Researchers at NIMS and Osaka University successfully fabricate nickel single crystals with minimal crystalline defects, paving the way for widespread use in heat-resistant jet engine components. The technique eliminates grain boundaries, resulting in stronger high-temperature materials.
Scientists successfully applied novel approach to imaging gas-phased molecule Carbonyl Sulfide, revealing a significantly bent and asymmetrically stretched configuration of the ionized OCS+ structure. The ZCP-LIED technique retrieves accurate and precise information about atomic structure without exact knowledge over the laser field.
Researchers will study and conduct experiments using femtosecond laser diagnostics to measure gas properties in plasma flows. The collaboration aims to better understand heat shields for hypersonic vehicles and space exploration applications.
Researchers have created a novel ultrafast coherent light source in the extreme ultraviolet wavelength region with multi-MHz range repetition rates. The system utilizes intracavity high-order harmonic generation and achieves a repetition rate of 3 MHz, suitable for applications such as ultrafast XUV spectroscopy.
Complex systems, like social networks and avalanches, exhibit similar characteristics when left to develop on their own. In a groundbreaking experiment, researchers from the University of Cologne observed self-organized criticality in a gas of potassium atoms, demonstrating universal avalanche behavior.
Scientists have developed a compact device that produces terahertz waves by spinning nitrous oxide molecules, offering precise control over wireless communication distances. The technology has the potential to revolutionize applications in radar, spectroscopy, and medical imaging.
Researchers have developed a compact, room temperature, widely tunable terahertz laser that outperforms existing sources. The laser offers high power and wide tuning range in a robust design, unlocking new applications in science and technology.
Weidong Zhou aims to develop energy-efficient lasers using nanophotonic cavities and nanostructured materials, enabling faster data transmission and sensing applications. His research explores carrier dynamics and quantum dots to achieve maximum efficiency.
University of Adelaide researchers have developed a laser that can measure gas composition in under one second with high accuracy and precision. The device uses patterns of light absorption to differentiate between different gas compounds, mimicking the sensitive nose of a bloodhound.
Researchers have developed a novel solution to detect, locate, and quantify methane leaks using a mobile dual-comb device. The system combines NIST's frequency comb technology with an array of corner cube retroreflectors for continuous monitoring over large areas.
JILA physicists have created an entirely new design for an atomic clock, packing strontium atoms into a tiny 3-D cube at 1,000 times the density of previous clocks. This approach enables a globally interacting collection of atoms to constrain collisions and improve measurements, leading to higher precision.
The CO2 Sounder Lidar is a strong contender for the ASCENDS mission, which aims to measure global atmospheric carbon dioxide levels. The instrument uses advanced technologies, including a highly sensitive solid-state detector and a rapidly tuning laser system, to achieve unprecedented precision and resolution.
A new laser-based uranium enrichment technology may provide a hard-to-detect pathway to nuclear weapons production. The separation of isotopes by laser excitation (SILEX) process could enable covert laser enrichment plants, posing proliferation concerns comparable to gas centrifuge development.
Researchers at Kansas State University have developed a new class of fiber-based lasers that can produce high-intensity light without requiring large amounts of power. The lasers use gas molecules to emit light and are portable, making them suitable for applications such as measuring distances and detecting gases in the atmosphere.
A new device detects ultra-low concentrations of gases accurately and nearly instantly, even with small vibrations. The sensor uses cavity ring-down spectroscopy and a high-power broadband laser, making it more practical for field applications.
Physicists have successfully used artificial intelligence to run a complex experiment, replicating the 2001 Nobel Prize-winning experiment. The AI system cooled a gas to extreme temperatures, far colder than outer space, and made precise measurements with unprecedented accuracy.
Researchers at the University of Bath created a new type of laser that can emit mid-infrared light between 3.1 and 3.2 microns, a range previously difficult to achieve. The breakthrough uses silica hollow-core fibers to confine light and enable gas-mid-IR interaction.
Researchers at the University of Bath created a new laser capable of pulsed and continuous mid-infrared emission between 3.1-3.2 microns, overcoming a major challenge in laser development. The achievement uses silica hollow-core fibers to confine light and gas, enabling efficient interaction and mid-IR emission.
The study provides a high-resolution readout of the energy levels for cations from their vibrational ground state to excited states, furthering our understanding of the coupled vibrations in the Renner-Teller effect. The results also shed light on the electronic structure of organic molecules.
Scientists at Jülich have developed a new concept for compact terahertz sources with tunable wavelengths using short-pulse lasers and strong external magnetic fields. This technology has the potential to revolutionize various applications, including non-invasive cancer screening and ultrafast wireless connections.
Austro-Russian research team develops high-energy mid-infrared laser capable of igniting laser filaments in air at normal atmospheric pressure. This technology enables tracing pollutants in the atmosphere using back-scattered light analysis.
The new meter is 100 times more precise than the best available near-infrared spectrometers and 10 times more accurate than a similar NASA meter. It enables researchers to track down carbon dioxide, methane, and other gases with simultaneous determination of their concentrations at different altitudes.
Physicists at the University of Texas at Austin have built a tabletop particle accelerator capable of generating energies previously reached only by major facilities. The device accelerates electrons to 2 GeV over a distance of just 1 inch, marking a significant milestone in the development of X-ray laser technology.
Researchers at NIST have developed a new technique that allows for rapid scanning of atmospheric gases, enabling faster and more accurate detection of greenhouse gases. This innovation has the potential to improve climate science by combining high-accuracy measurements from various platforms.
An international team produced a coherent beam that includes X-rays for the first time using a setup on a laboratory table. The researchers converted part of the original laser energy into a super-continuum of light extending well into the X-ray region, enabling the study of fastest physical processes in nature.
Researchers successfully redirect an electrical discharge from its intended target to a normally less-attractive electrode using a virtual lightning rod created with femtosecond pulses of laser light. This feat demonstrates the potential of using laser-based lightning rods for research and protection.
Researchers created an atomic X-ray laser by removing electrons from neon gas atoms, creating a 'domino effect' that amplified the laser light. The new technology fulfills a 45-year-old prediction and could lead to breakthroughs in medicine, devices, and materials.
Researchers at SLAC National Accelerator Laboratory have created the shortest, purest X-ray laser pulses ever achieved, enabling ultrafast reactions to be seen in detail. This achievement fulfills a 1967 prediction and opens doors for new scientific discoveries.
Researchers at Idaho National Laboratory are testing lasers to scrub surfaces clean of sulfur mustard gas and VX, a nerve agent. The tests have proved successful on complex, porous surfaces like concrete.
The University of Houston welcomes the NSF-supported National Center for Airborne Laser Mapping, bringing cutting-edge laser mapping technology to its campus. The center aims to advance research in geosensing systems engineering, improving disaster recovery, oil and gas exploration, and environmental studies.
At the 2010 AAAS Annual Meeting, the Optical Society and American Physical Society sponsored a seminar on the birth, growth, and future of laser technology. The symposium showcased the impact of lasers on various fields, including medicine, energy, and national security.
Researchers at two Italian universities create method to transfer entropy from potassium atoms to surrounding rubidium atoms, enabling control over ultra-cold matter. This breakthrough technique opens new possibilities for physics research at extremely low temperatures and entropies.
Researchers at the University of Bonn have demonstrated a method for cooling gas using laser bombardment, which works under pressure. The technique allows for rapid refrigeration capacities, enabling the creation of new states of matter and potentially leading to the development of mini fridges.
Research on the centre of planets provides deeper insight into controlled thermonuclear fusion and improves models of Jupiter and Saturn. The study reveals that extreme matter behaves like a charged liquid at smaller distances but acts more like a gas over larger lengths.
Researchers at Georgia Tech have developed a prototype handheld gas phase chemical sensing device and a liquid phase sensing device using small quantum cascade lasers. The devices can detect levels of chemicals as low as 30 parts-per-billion, enabling fast response times for applications such as breath diagnostics and water monitoring.
Researchers at MIT have successfully observed fermionic superfluidity in a lithium-6 isotope, enabling the study of high-temperature superconductivity. The team achieved this by cooling gas close to absolute zero and trapping it using laser beams.
Researchers at Berkeley Lab develop a technique to channel laser-powered plasma waves, creating high-quality beams with particles over 80 MeV in energy. By optimizing plasma channel conditions and laser parameters, they achieve unprecedented beam intensity and suppress electron capture.
Researchers at the University of Rochester have developed a new surgical semiconductor laser that can produce a unified beam with high power and precision. The laser's design makes it possible to achieve power levels of 6-12 watts, twice as much as current devices.