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
TEA laser on to a variety of packaging materials by passing the laser light through a mask containing the information, and focusing it down to an intensity which ablates the material to be marked. Beside this TEA CO lasers are used for surface preparation in industrial environments since the mid 90’s. Applications include: The advantage of this specific laser is the combination of the CO specific wavelength, mainly 10.6 µm, with the high energy level of the short pulses (~2 μs). TEA laser A TEA laser is a gas laser energized by a high voltage electrical discharge in a gas mixture generally