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Lasers
Part 1 of Paper
.... because it is coherent light. The beam is produced
by a process known as stimulated emission, and the word "laser" is an acronym
for the phrase "light amplification by stimulated emission of radiation."
Light is just like radio waves in the way that it can also carry
information. The information is encoded in the .... Part 2 of Paper
...., and ions in a crystal. Another component consists of some method of
introducing energy into the active medium, such as a flash lamp for example.
Another component is the pair of mirrors on either side of the active medium
which consists of one that transmits some of the radiation that hits it. If the
active component in the laser is a gas laser than each atom is characterized by
a set of energy states, or energy levels, of which it may consist. An example
of the energy states could be pictur.... |
| Number of words: 757 - Approximate pages: 3 |
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