Lasers: What Everyone Should Know Essay -- Technology Tools Papers

Lasers What Everyone Should KnowLasers argon very measurable tools in modern science, industry, and everyday life. From their creation over forty eld ago their designs have improved and their usefulness increased. They work on tangible principles that are a mix of both classical and quantum mechanical, thus making them great examples for demonstrating the properties of light and excited states of atoms and molecules. The process of producing laser light potentiometer be complicated, but the rendering of laser action, becomes easily accessible when an explanation of the underlying physical principles, and the apparatus involved in creating it is given. Indeed, there are a number of different types of lasers, solid-state lasers, gas lasers, semiconductor laser and dye pumped lasers. Each of these has different properties that make them ideal for trusted situations. Furthermore, each type functions differently, yet produces the same result. That is, light created from stimu lated emission, which is completely in phase, all of the same wavelength, and all propagating in the same direction. With this experience everyone should gain a new appreciation of light and lasers.IntroductionWithout a doubt, everyone has heard about lasers, and while the first thing that comes to mind at the mention of the word can be anything from some sort of remainder ray to a doctor performing eye surgery, their infusion into beau monde is certainly very deep. However, the average layman may not be all that familiar with how exactly a laser functions or the marrow total of its applications, which can range from medical instruments, to industrial machinery, to CD players, and as important tools in scientific research.First off, laser, or more appropriate... ...rd, R.L., Omni Mar., 54 (1979). 3 Gordon, J.P., Zeiger, H.J., Townes,C.H., Phys. Rev. 95, 282 (1954).4 Shawlow, A.L. and Townes, C.H., Phys. Rev. 112, 47 (1958).5 Maiman, T.H., Nature 187, 493 (1960).6 Larsen, E., Inc. Mar. 1, 68 (1989).7 Bennett, W.R., Phys. Rev. 126, 580 (1962). 8 Turro, N.J., Modern Molecular Photochemistry, The Benjamin Menlo approximate range (1988).9 Huheey, J.E., Inoganic Chemistry, HarperCollins New York (1993).10 Williams, M., PC World, Sanyos Blue Laser May Boost opthalmic Storage, 3/13/2002.11 Brownlee, C., Medical Drug Discovery, 4.11 14 (2001).12 Bell Labs Photonics unit 13 Lane, E., The Seattle Times, Space detectives Scientists seek waves of gravity, 10/9/2002.14 Kent, D.F. and Nene, G., Enlighten, 6, 4 (2001).