X-ray lasers: Why does brighter mean darker?
When we illuminate something, we usually expect that the brighter the source we use, the brighter the resulting image will be. This rule also works for ultra-short pulses of laser light—but only up to a certain intensity. The answer to the question.....»»
Cool Crowdfunding: CNC Lathe, Antikythera, and Lasers
We receive so many pitches for crowdfunding projects. They pour into our inbox daily. Since crowdfunding is a bit of a gamble, it is always kind of hard to determine just how to write about these projects, considering that many of them may not ever.....»»
You won’t find this secret Galaxy Z Fold 5 deal on Samsung’s website
With a new hinge, a smaller size, and a brighter screen, the Fold 5 is a great phone to grab with a $1,000 trade-in value and our exclusive $50 discount......»»
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.....»»
Brighter fluorescent markers allow for finer imaging
Researchers at the McKelvey School of Engineering at Washington University in St. Louis have pioneered a new technique that will enable higher-resolution imaging of very small objects like neurons. The technique, which improves on an existing method.....»»
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.....»»
Deep-sea imagery and observations reveal novel octopus feeding behavior
In the marine realm, diel vertical migration is a common feeding pattern: During daytime, zooplankton, fish and other marine life that feeds on these organisms hide in the darker depths of the ocean......»»
iPhone 15 Pro rumored to gain a darker shade of blue
There have been a lot of rumors regarding color options for the upcoming iPhone 15, and the latest is a return to a blue shade for the Pro models.iPhone 12 Pro in Pacific Blue on the leftApple usually launches at least one unique color with each new.....»»
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.....»»
Research team develops more affordable and brighter film lighting technology
A research team led by Dr. Byeong-dae Choi at the DGIST Division of Electronics & Information System has greatly improved the efficiency of zinc sulfide powder-based electroluminescent devices by applying silver nanofilms. The study was published in.....»»
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......»»
Webb locates dust reservoirs in two supernovae
Supernovae, the explosive deaths of stars, are some of the universe's biggest bursts of energy and light. When they erupt, one supernova can shine even brighter than an entire galaxy......»»
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.....»»
Brighter nights risk extinguishing glow-worm twinkle
The bright lights of big cities are wonders of the modern world; intended to help us work, stay safe and enjoy the world around us long after the sun has set. While artificial light has been great for increasing human productivity, some nocturnal ani.....»»
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......»»