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The word laser means Light Amplification by the Activation Emission of Radiation. In 1916, Albert Einstein developed the theory of Stimulated Emission. In other words, it's a process where a photon is em... New applications of laser technology are being developed continually. Laser engineering was long the stuff of science fiction, but today it's found in CD players, dental workouts, laser saws, high-speed steel cutting machines, testing systems and a bunch of other products. The word laser represents Light Amplification by the Stimulation Emission of Radiation. In 1916, Albert Einstein developed the theory of Stimulated Emission. Just put, it is a procedure where a photon is emitted from an and crashed into other atoms, producing them to also produce photons. In a chamber, more and more photons bounce around, raising the power level within the chamber. As a narrow laser beam when the energy has generated up sufficiently, the chamber is exited by it. It was largely neglected until, in 1954, Charles Townes, an American physicist, began analyzing microwave light, Although Einsteins work was investigated during the 1920s. The 60s heralded new discoveries in laser technology. Theodore Maiman built the very first working optical light laser in 1960. It used a great state laser that incorporated a synthetic ruby. The very first semiconductor laser originated in 1962. Today, the three most common lasers are semiconductor, solid state and fuel.  [http://www.messer-world.com/ messer cutting systems oxyfuel technology catalogue]  Helium-neon lasers  [http://www.messergroup.com/ mess er]  Helium-neon lasers would be the cheapest visible light lasers. In 1974, they certainly were used as bar code scanners, first in grocery stores and now in lots of large retail stores. The laser is scanned across a bar code and tells the value to the cash registers computer of the object. Inventory and It can also provide information on purchase discounts, stock numbers. Lasers are used by machinists and surveyors to measure length and align pieces. They're used to assess the speed of light in a laboratory, ranges on a street or movement along an earthquake fault. Argon lasers Argon lasers are used by the medical profession to create incisions that are more accurate than scalpels. There's less scarring with lasers since they may be used instead of sutures to stiffen the cut together after surgery. Lasers are used in eye surgery to weld the retina back together. Lasers will also be used to improve poor vision by reshaping the cornea. Among the newest medical uses for lasers would be to make little holes in one's heart so that trails are made for new blood flow. This can help prevent heart attacks. The only downside is the increased cost over traditional surgeries.  [http://www.xing.com/profile/Olaf_Heiseler company web site]  Argon lasers make holograms, and are employed in spectrochemistry, visual image processing, semiconductor processing and laser light shows.  [http://www.pressebox.de/pressemitteilung/messer-cutting-systems-gmbh/Stark-im-Aufwind/boxid/541909 messer cutting and welding]  Solid state lasers Solid state lasers are utilized for cutting, welding, heat treating and marking of products. Jewelers can perform very accurate cuts when using lasers to cut good jewels. Lasers allow better cuts on metals and the welding of different metals. Scientists use solid state lasers to discover the slightest movements in matter. Police force has long used laser technology for gauging the speed of cars. The army is using solid state lasers in rangefinders, laser guided bombs and satellite communications systems. The greatest lasers on earth are solid state lasers. Most of the laser projectors for light shows and for other laser exhibits use solid state rather than argon or krypton gas lasers. Semiconductor lasers Semiconductors are accustomed to develop lasers with invisible light. The first successful consumer product to incorporate a, the player, was released in 1978. In 1983, the compact disc player was introduced. Currently, lasers will also be utilized in DVD players, mobile devices, laser printers and wireless Internet transmission.