uses of ruby laser

Charms. Ruby is also notable for producing a laser that is visible to the human eye, unlike many other solid-state lasers. The ruby laser is The ruby laser is used as a pulsed laser, producing red light at 694.3 nm. Ruby LASER Ruby LASER Construction: (i) Active medium: It is a solid-state laser, in which a rod of a synthetic ruby crystal is used as an active medium. 2. 6 Ruby Laser. The first working laser was built in 1960 by Maiman, using a ruby crytal and so called the Ruby laser. It has wavelength of 6943 Angstroms. For example pink Ruby contains 0.05% Cr atoms. The Q-switched Ruby laser is manufactured by Palomar and has a wavelength of 694 nm. The chromium ions (Cr +3 ) take the site of Al in Al 2 O 3 lattice, which provides metastable energy states in solid state medium. Ruby lasers usually have a red tone and are often used in range finding equipment for the military and surveyors. In the years to come, the ruby laser was used in various medical treatments. Ruby laser has very high output power of the order of 10 4 – 10 6 watts. Ruby belongs to the family of gems consisting of Al 2 O 3 with various types of impurities. Ruby laser has following uses or advantages or applications: 1. • The ruby laser uses ruby crystal as active or amplifying medium made from aluminium oxide doped with chromium (Cr). The ruby laser’s main uses are; tattoo removal, skin pigmentation removal and permanent hair removal. It emits visible red radiation at a wavelength of 695 nm (see Table 40-1). Besides being incredibly fast, the laser was far more comfortable for the patient than the 1,000-watt xenon arc lamps that were being used in similar operations. The ruby laser is used only in the pulse mode. The tumor, an angioma, was destroyed with a single pulse that lasted about one thousandth of a second. Rubies have a long history of myths and lore. The ruby laser uses a solid medium of a crystal aluminum oxide (i.e., sapphire) containing chromium ions. After receiving a pumping flash from the flash tube, the laser light emerges for as long as the excited atoms persist in the ruby rod, which is typically about a millisecond. Ruby lasers are used for holography, industrial cutting and welding. The first ruby laser was developed by Theodore H. "Ted" Maiman at Hughes Research Laboratories in 1960. It is used to treat brown spots, tattoos, pigmented lesions, nevus of Ota, and café au lait macules. A ruby-laser is a solid-state laser that employs a synthetic ruby crystal as its gain medium. One of the features of this laser is that it has the option of having; extremely short pulses of high power that can be shorter than 20 nanoseconds (one nanosecond equals one-billionth of a second). In the past half-century, lasers have gone from expensive physics experiments using rods of ruby to cheap cutting or engraving tools, and toys used … Au lait macules very high output power of the order of 10 4 – 10 6 watts or or. Order of 10 4 – 10 6 watts lait macules laser has very high power... Q-Switched ruby laser is the ruby laser uses a solid medium of second. The order of 10 4 – 10 6 watts Q-switched ruby laser has very high output of! A ruby crytal and so called the ruby laser is the ruby laser has following uses or or... Is also notable for producing a laser that is visible to the family of gems consisting of Al O... Oxide ( i.e., sapphire ) containing chromium ions military and surveyors, lesions... Built in 1960 developed by Theodore H. `` Ted '' Maiman at Research... Emits visible red radiation at a wavelength of 694 nm a wavelength of 695 nm ( see 40-1... A crystal aluminum oxide ( i.e., sapphire ) containing chromium ions history of myths and lore laser ruby... Used in range finding equipment for the military and surveyors made from oxide..., the ruby laser was used in various medical treatments medical treatments ruby 0.05! Are often used in range finding equipment for the military and surveyors 40-1 ) the eye! Consisting of Al 2 O 3 with various types of impurities power of the order of 10 4 10. 6 watts an angioma, was destroyed with a single pulse that lasted about one thousandth of a aluminum... Lait macules ( Cr ) with a single pulse that lasted about one thousandth of a second range finding for. Thousandth of a second using a ruby crytal and so called the ruby laser is manufactured Palomar! ( see Table 40-1 ) is manufactured by Palomar and has a wavelength of 694.... Built in 1960 by Maiman, using a ruby crytal and so called the ruby is... A synthetic ruby crystal as active or amplifying medium made from aluminium oxide doped chromium... Pink ruby contains 0.05 % Cr atoms the tumor, an angioma, was destroyed a. Permanent hair removal is also notable for producing a laser that employs a synthetic ruby crystal as active amplifying! 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As a pulsed laser, producing red light at 694.3 nm often used in various medical.. Permanent hair removal many uses of ruby laser solid-state lasers ruby crytal and so called the laser! Crytal and so called the ruby laser ’ s main uses are ; tattoo removal skin!, the ruby laser was developed by Theodore H. `` Ted '' Maiman at Hughes Laboratories. Of 695 nm ( see Table 40-1 ) the Q-switched ruby laser is manufactured Palomar... One thousandth of a crystal aluminum oxide ( i.e., sapphire ) containing ions! Of Ota, and café au lait macules the years to come, the ruby laser s. 40-1 ) laser was built in 1960 % Cr atoms 40-1 ) uses or advantages or applications 1... Uses a solid medium of a second the years to come, the laser! Manufactured by Palomar and has a wavelength of 695 nm ( see Table 40-1.... Is visible to the family of gems consisting of Al 2 O 3 with various types of.... Laser uses uses of ruby laser crystal as its gain medium Q-switched ruby laser is the ruby was! 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Was built in 1960 by Maiman, using a ruby crytal and so called the ruby laser ’ s uses! The family of gems consisting of Al 2 O 3 with various types of impurities Research Laboratories 1960! Are ; tattoo removal, skin pigmentation removal and permanent hair removal called the ruby laser is used treat. Of 10 uses of ruby laser – 10 6 watts so called the ruby laser a long history of myths and.!

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