Ruby laser weaknesses in the lining. Ruby lasers were used extensively in tattoo and hair removal, but are being replaced by alexandrite and s in this application. The ruby laser was the first laser to be made functional. Built by Theodore Maiman in 1960, the device was created out of the concept of an "optical maser," a maser that could operate in the visual or infrared regions of the spectrum. In 1958, after the inventor of the maser, Charles Townes, and his colleague, Arthur Schawlow, published an article in the "Physical Review" regarding the idea of optical masers, the race to build
Laser tag higher output power and specially designed optics are often a requirement. The units themselves are normally constructed of machined aluminum or a poly-carbonated plastic to withstand the abuse the outdoors brings. Players usually wear lightweight head sensors to receive hits. Operators typically either run games like indoor laser tag where you count the number of times you tag other players, or scenarios often approximate real-world combat, or a laser tag version of paintball games. Many paintball fields are adding laser tag to attract and groom players who are too young to play paintball. Some theme parks are adding outdoor laser