- Multifunctional phosphor developed for white LED lighting and optical thermometry
In the realm of lighting and temperature measurement, advancements in material science are paving the way for significant improvements in technology and safety. Traditional methods, which combine yellow phosphors with blue chips in LEDs, have limitations such as inadequate red light components that affect color rendering and potential hazards from blue light exposure.
- Researchers simulate novel metal-filtered VCSEL modal control
A study led by researchers from the Changchun Institute of Optics, Fine Mechanics and Physics of the Chinese Academy of Sciences revealed a novel metal-dielectric film mode filter structure that can flexibly regulate transverse modes in vertical-cavity surface-emitting lasers (VCSELs), which demonstrates the potential of metal apertures in enhancing mode control within VCSELs. The study was published in Sensors.
- Don’t miss Saturn at opposition
Ringed-world Saturn comes to opposition on 8 September, offering its best observing circumstances for the year.
- Observe Mercury at its morning best
The elusive, innermost planet pulls to maximum elongation from the Sun to put on its best showing of the year in the pre-dawn sky.
- 1,100-year-old Viking silver bracelet hoard discovered on Norwegian farmstead
Archaeologists from the University of Stavanger’s Archaeological Museum have uncovered a remarkable Viking treasure hoard in the Hjelmeland municipality, Norway. The discovery, made during excavations ahead of the construction of a new farm road, includes four silver bracelets, thought to be over 1,100 years old, buried under the floor of what is believed to be The post 1,100-year-old Viking silver bracelet hoard discovered on Norwegian farmstead appeared first on Archaeology News Online Magazine.
- Russia's Soyuz rocket launch to ISS called flawless for NASA veteran's first space trip in decade
Washington DC (UPI) Sep 11, 2024 An American astronaut and two Russian cosmonauts successfully launched Wednesday for a six-month mission to the International Space Station and the transition from one mission crew to another. Roscosmos cosmonauts Alexey Ovchinin and Ivan Vagner departed Earth in a live-streamed event with NASA astronaut Don Pettit on time at 12:23 p.m. EDT aboard the Russian Soyuz spacecraft atop a Soy