This is a short summary of the paper
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The Laser
Start of Term Paper
Before we can learn about we need to know a little bit about
light (since that is what a laser is made of). Light from our sun, or from an
electric bulb, is called white light. It is really a mixture of all the
different colours of light. The .... Middle of Term Paper
... The wavelength of the light is important to the
subject of the laser. A laser is made up of COHERENT light, a special kind of
light in which the wavelengths of the light are all the same length, and the
crests of these waves are all lined up, or in PHASE. The word Laser is an
acronym for Light Amplification by Stimulated Emission of Radiation. What does
that mean? Basically a laser is a device which produces and then amplifies light
waves and concentrates them into an intense penetrating beam.
The principles of the laser (and it's cousin the maser) were established
long before these devices were successfully developed. In 1916 Albe ... |
| Number of Words: 981 |
Approximate Pages: 4 |
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