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Beginning of Paper
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Lasers and Their Uses
We have all at some point in our lives used or seen someone use a laser.
They are used in compact disc players for stereos or computers, laser surgery,
laser printers, holography, cutting and borring metals, communication, bar-code
scanners, etc. Over the past three decades' lasers have becom ....
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Middle of Paper
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.... very long distances.
Lasers vary greatly in the way they look and what they are used for.
Some lasers are as large as buildings while others can be the size of a grain
of salt.
There are many parts to lasers. I will now explain what they are and
their uses.
1) Pumping systems:
The pumping system is used to transmit energy to the atoms or molecules
of the medium used in the laser.
a. optical pumping systems uses photons provided by a source such as a Xenon
gas flash lamp or another laser to transfer energy to the lasing material ....
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SUBJECTS
