Using air to deflect lasers
Using a novel method, beams of laser light can be deflected using air alone. An invisible grating made only of air is not only immune to damage from the laser light, but it also preserves the original quality of the beam, reports an interdisciplinary.....»»
Spectrally combining lasers could unleash the potential of laser-plasma accelerators
A team of researchers from the Accelerator Technology & Applied Physics (ATAP) Division at Berkeley Lab has developed a new technique for combining fiber lasers operating at different wavelengths to produce ultrashort laser pulses. The research was p.....»»
Two types of ultrafast mode-locking operations generation from an Er-doped fiber laser based on germanene nanosheets
Saturable absorbers as passive modulators in passively mode-locked fiber lasers play a crucial role in the generation of ultrashort pulses. Germanene, a graphene-like two-dimensional material with fast carrier relaxation time and large nonlinear abso.....»»
OLED iPhone screens can now be repaired with a laser
Fixing OLED panels using a laser has emerged as a new way to address screen issues, among the most common iPhone repairs, and could help people save money.Lasers can fix certain issues with OLED screensA recently developed technology uses lasers to r.....»»
Laser squared: A two-domain photon-phonon laser
Lasers are a significant historical invention with ubiquitous impact in society. The concept also has interdisciplinary applications as phonon lasers and atom lasers. A laser in one physical domain can be pumped by energy in another. Nevertheless, al.....»»
Linewidth narrowing in self-injection-locked, on-chip lasers
On-chip laser diodes based on quantum well (QW) and quantum dot (QD) semiconductor materials have become the primary technology for several applications due to their excellent characteristics, including high power efficiency, high-temperature operati.....»»
Study presents ultra-low threshold continuous-wave quantum dot mini-BIC lasers
Lasers with ultra-low threshold and compact size are highly desirable components in photonic integrated circuits, aiming at the application of optical communications, chip-scale solid-state LIDAR and quantum information. The general approach to reali.....»»
Researchers grow precise arrays of nanoscale LEDs
Halide perovskites are a family of materials that have attracted attention for their superior optoelectronic properties and potential applications in devices such as high-performance solar cells, light-emitting diodes, and lasers......»»
Monolithically integrated semiconductor lasers with silicon photonic circuits
Silicon (Si) photonics has recently emerged as a key enabling technology in many application fields thanks to the mature Si process technology, the large silicon wafer size, and Si optical properties. However, the inability of Si-based materials to e.....»»
Researchers report on a new technique for cooling membranes with lasers
Using a new technique, researchers at the University of Basel have succeeded in cooling a small membrane down to temperatures close to absolute zero using only laser light. Such extremely cooled membranes could, for instance, find applications in hig.....»»
Topological bulk BICs enable compact, single-mode and beam-engineered QCLs
Electrically pumped semiconductor lasers are among the most important sources, owing to their high efficiency, compactness, and solid-state stability. For mid-infrared and terahertz radiation, quantum cascade lasers (QCLs) are the most important ligh.....»»
The Quest To Make Player Piano Rolls Using lasers
I’ve found player pianos fascinating since I was a kid. The first time I saw a player piano was at the Mall of the Bluffs in Council Bluffs, Iowa, a grand piano playing away with no one around. A player piano seems like something out of fiction, a.....»»
Thorium-229: How the first nuclear transition can be excited with lasers in the visible wavelength range
The thorium isotope with the mass number 229 (229Th) is highly exciting in many respects—for fundamental physics as well as for future applications, for example in the sense of a nuclear clock......»»
High-power, high-energy, all-fiber Mamyshev oscillator
High power/energy ultrafast fiber lasers have broadband applications in material processing, medicine, advanced manufacturing and other fields. Compared with solid-state lasers, fiber lasers have the advantages of compact systems, flexibility, good h.....»»
Scientists take flight to map California"s vast snowpack and measure flooding threats
Flying thousands of feet above the Sierra Nevada in a plane equipped with specialized imaging devices, Elizabeth Carey has been scanning the mountains with lasers to precisely map the snow......»»
Which Laser Should You Buy?
Makers are confronted with so many choices of laser cutters and engravers that it can be intimidating. Here's a rough outline of the main differences between the lasers on the market today. The post Which Laser Should You Buy? appeared first on Make.....»»
NASA satellite"s elusive green lasers spotted at work
The green light streaking across the cloudy sky was something that Daichi Fujii had never seen before. The museum curator's motion-detecting cameras were set up near Japan's Mount Fuji to capture meteors, allowing him to calculate their position, bri.....»»
Efficient heat dissipation perovskite lasers using a high-thermal-conductivity diamond substrate
Perovskite lasers have rapidly achieved progress in developing continuous-wave excited lasing from a femtosecond pulse excited lasing, which is considered a critical step towards electrically excited lasing. After continuous-wave lasing at room tempe.....»»
Intense lasers magnetize solids within attoseconds
Intense laser light can induce magnetism in solids on the attosecond scale—the fastest magnetic response to date. That is the finding reached by theoreticians at the Max Planck Institute for the Structure and Dynamics of Matter in Hamburg, Germany,.....»»
Mechanisms of ultra-fast gigahertz burst femtosecond laser ablation
Gigahertz femtosecond lasers are suited to enhance and regulate laser machining quality to engineer the physicochemical properties of materials. Materials scientists seek to understand the laser-material interactions by gigahertz femtosecond lasers,.....»»
Scientists measure laser-heated plasma using Doppler weather forecasting technique
Scientists have used a common weather forecasting technique for insights into how powerful lasers turn hunks of solid material into soups of electrically charged particles known as plasmas......»»