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Lasers

Laser is an acronym for light amplification by stimulated emission of radiation. Lasers are devices that amplify light and produce consistent light beams that range from infrared to ultraviolet. There are many different types of lasers: solid-state, gas, semiconductor, liquid, and free electron lasers.

There is only one restriction on a laser and that is the human being. We have not yet found everything that a laser can do. Lasers have revolutionized many fields such as science research, manufacturing, communication, photography, medicine and military applications. In this report, I will provide proof that lasers were one of the greatest advancements in physics.

Lasers have transformed chemistry research. Scientists use lasers to study the structure of atoms and molecules. They also use them to deter


Another area in industry where lasers are used is mining. They use the laser to precision digging and drilling. Mine safety people use lasers to test shafts in the mine for cracks. The laser shoots the beams in all directions and from that a computer can tell the size, shape, and if there are any cracks in the tunnel or digging area. This is a very valuable tool because it cuts down on the chance of an accident.

3) The 1995 Grolier Multimedia Encyclopedia, Grolier Incorporated, United States of America, 1995.

The military uses laser sights on their guns. These are extremely useful because the troops no longer have to use scopes as a red dot from the laser shows up on the target where the bullet will strike.

Lasers can produce a type of three-dimensional image called holograms. Holograms are made by exposing laser light to a piece of film. The object that is being holographed strews the laser light. The piece of film being holographed is also being exposed to light coming directly from the laser this is the reference beam. These two beams of laser light become disharmonious with on another because they are traveling from different paths. The film then records the interference pattern, between the two light beams, which is the hologram. To view the hologram you simply pass a beam of light through the film and it

Manufacturers of large equipment, computer chips, plastics and cardboard have all seen the changes that lasers have brought to their different industries.

Computer manufacturers use lasers to treat semiconductor chips. They also use the laser to do precision welding in glass tubes such as resistors, diodes, transistors, and many other microchips. This has enabled computer companies to decrease the size of the computer and increase the processing speed of the computer.

Doctors who perform plastic surgery find the laser very helpful in many different areas. They can now remove a tattoo by simply burning it off with a laser. Although this procedure is relatively painful, the pain does not last long. When doing plastic surgery the doctors will use laser t

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Approximate Word count = 1416
Approximate Pages = 6 (250 words per page double spaced)


  

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