Title: Lasers

Essay Details

Subject: Technology
Author: Anna S
Date: April 29, 2013
Level: University
Grade: B
Length: 3 / 769
No of views: 0
Essay rating: good 0, average 0, bad 0 (total score: 0)

Essay text:

The information is encoded in the beam as variations in the frequency or shape of the light wave. The good part is that since light waves have much higher frequencies they can also hold much more information. Not only is the particle the smallest light unit but it is a particle as well as a wave...

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In beams of light whether they are ordinary natural or artificial the photon waves will not be traveling together because they are not being emitted at exactly the same moment but instead at random short bursts. Even if the light is of a single frequency that statement would also be true. A laser is useful because it produces light that is not only of essentially a single frequency but also coherent, with the light waves all moving along in unison...

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