Warning: Use of undefined constant referer - assumed 'referer' (this will throw an Error in a future version of PHP) in /usr/home/essaywo/public_html/essays on line 102

Warning: Use of undefined constant host - assumed 'host' (this will throw an Error in a future version of PHP) in /usr/home/essaywo/public_html/essays on line 105

Warning: Cannot modify header information - headers already sent by (output started at /usr/home/essaywo/public_html/essays:102) in /usr/home/essaywo/public_html/essays on line 106

Warning: Cannot modify header information - headers already sent by (output started at /usr/home/essaywo/public_html/essays:102) in /usr/home/essaywo/public_html/essays on line 109
The Laser - Online Term Paper

The Laser


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 colours range from violet, indigo, and blue, to
green, yellow, orange, and red. These make up the visible part of the
electromagnetic spectrum. Light is made up of particles, called PHOTONS, which
travel in waves. The difference in the colour depends on the wavelength of the
light. Violet light has the shortest wavelength while red has the longest. There
are other parts of the electromagnetic spectrum which includes infra-red, radar,
television radio ...

Want to read the rest of this paper?
Join Essayworld today to view this entire essay
and over 50,000 other term papers

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 Albert Einstein
proposed stimulated emission, and other fundamental ideas were discussed by V.A.
Fabrikant in 1940. These ideas, followed by decades of intensive development of
microwave technology set the stage for the first maser (a laser made up of
micro-waves), and this in turn helped to produce more advances in this area of
science. These efforts cumulated in July 1960 when Theodore H. Maiman announced
the generation of a pulse of coherent red light by means of a ruby crystal-- the
first laser.

Laser light is produced by pumping some form of energy, such as light, from
a flash tube (see below) into a LASING material, also known as a medium. Media
can be liquids, ...

Get instant access to over 50,000 essays.
Write better papers. Get better grades.


Already a member? Login


CITE THIS PAGE:

The Laser. (2006, July 18). Retrieved March 28, 2024, from http://www.essayworld.com/essays/The-Laser/49305
"The Laser." Essayworld.com. Essayworld.com, 18 Jul. 2006. Web. 28 Mar. 2024. <http://www.essayworld.com/essays/The-Laser/49305>
"The Laser." Essayworld.com. July 18, 2006. Accessed March 28, 2024. http://www.essayworld.com/essays/The-Laser/49305.
"The Laser." Essayworld.com. July 18, 2006. Accessed March 28, 2024. http://www.essayworld.com/essays/The-Laser/49305.
JOIN NOW
Join today and get instant access to this and 50,000+ other essays


PAPER DETAILS
Added: 7/18/2006 02:46:46 AM
Category: Science & Nature
Type: Free Paper
Words: 981
Pages: 4

Save | Report

SHARE THIS PAPER

SAVED ESSAYS
Save and find your favorite essays easier

SIMILAR ESSAYS
» The Laser
» The Uses of Laser Beam
» Five Imporant Events Of The 19
» Tattoo Or Not To Tattoo... The
» Hololiterature: A Holographic I...
» Creative Writing: The Wind In H...
» Optical Fiber the Backbone of T...
» Lasers And Their Applications
» Lasers
» Lasers 3
Copyright | Cancel | Contact Us

Copyright © 2024 Essayworld. All rights reserved