Abstract: It is well known that inclined sidewall scattering structures can improve the light extraction efficiency (LEE) of micro deep ultraviolet (DUV) light-emitting diodes (LEDs). However, ...
Abstract: In single-phase ac/dc light-emitting diode (LED) drivers, a reduced power processing technique is currently being used to increase conversion efficiency while reducing the size and cost of ...
After an X-class solar flare erupted on Feb. 1, a coronal mass ejection reached Earth sooner than expected, prompting upgraded aurora forecasts for Wednesday night Elizabeth Ruggiero/Getty A powerful ...
As February's long nights begin to settle in, the UK is bracing for some of the year's best aurora-spotting opportunities without leaving the country. The Aurora Borealis, also known as the Northern ...
Aurora photographer Dennis Lehtonen, 30, talks with PEOPLE about where to spot the northern lights in 2026 Getty Aurora chaser Dennis Lehtonen tells PEOPLE that clouds are the biggest factor in seeing ...
Aurora chaser Dennis Lehtonen tells PEOPLE that clouds are the biggest factor in seeing the northern lights, which is why destinations with clear skies often outperform more famous locations He ...
When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. In August 2025, I wrote about Finchetto, a UK photonics startup working on an optical packet ...
Red light is a popular treatment for skin concerns, especially signs of aging like wrinkles, age spots, and sagging skin. People are also using it to treat hair loss. Whether you want to treat your ...
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