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A blue laser emits electromagnetic radiation with a wavelength between 400 and 500 nanometers, which the human eye sees in the visible spectrum as blue or violet. [1] Blue lasers can be produced by: direct, inorganic diode semiconductor lasers based on quantum wells of gallium (III) nitride at 380-417nm [2] [3] or indium gallium nitride at 450 ...
BELLA (laser) The Berkeley Lab Laser Accelerator ( BELLA) is a laser built by the Thales Group and owned and operated by the Lawrence Berkeley National Laboratory. [1] [2] On 20 July 2012, BELLA fired a 40 femtosecond laser pulse, establishing a world record for most powerful laser. [2] [3]
An immense slab of "continuous melt" processed neodymium-doped laser glass for use on the National Ignition Facility. This is a list of laser types, their operational wavelengths, and their applications. Thousands of kinds of laser are known, but most of them are used only for specialized research.
The carbon-dioxide laser ( CO2 laser) was one of the earliest gas lasers to be developed. It was invented by Kumar Patel of Bell Labs in 1964 [1] and is still one of the most useful types of laser. Carbon-dioxide lasers are the highest-power continuous-wave lasers that are currently available. They are also quite efficient: the ratio of output ...
craigslist. Craigslist (stylized as craigslist) is a privately held American company [5] operating a classified advertisements website with sections devoted to jobs, housing, for sale, items wanted, services, community service, gigs, résumés, and discussion forums.
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The 2011 Southwest blackout, also known as the Great Blackout of 2011, [1] [2] was a widespread power outage that affected the San Diego–Tijuana area, southern Orange County, Imperial Valley, Mexicali Valley, Coachella Valley, and parts of Arizona. [3] It occurred on Thursday, September 8, 2011, beginning at about 3:38pm PDT, and was the ...
In a survey by the Knot that polled nearly 10,000 U.S. couples who married in 2023, the average cost of a wedding was $35,000 — a $5,000 increase from the previous year. California was ranked as ...
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