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
Lasers 3 - College Papers

Lasers 3


The idea for the laser started as long ago as 1905 when Albert Einstein suggested the simulated emission of light. Light sources ie. candles, florescent substances, torches, and light bulbs give of packets of energy, called photons, when their atoms are excited by energy. Einstein suggested that these atoms could be artificially stimulated to emit photons, where the light produced would be highly concentrated, bright and powerful and could be used for many tasks. Even though Einstein new the principals for building a laser, it was not attempted until later because it would be to expensive and difficult at that time since the advanced machinery that was needed did not exist yet.
It was not ...

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

interested in the idea of building an optical maser, which soon received the name laser (light amplification by stimulated emission of radiation). Townes paired with Arthur Schawlow, two Soviets, Nikolai Basov and Aleksander Prokhorov, as well as Gordon Gould were all interested in developing a light-amplifying device. All of them knew that there were three essential ingredients in making a laser; a florescent material that would emit light when stimulated by radiation from an external energy source, two facing mirrors on the sides of the florescent material, and external energy source.
Theodore Maiman was the first to successfully assemble an optical laser. In 1960 Maiman produced the ruby laser. In it a strobe lamp is coiled around the core, a rod of ruby that has mirrors at its ends, one of which is only partially solid. As the strobe light flashes it excites the ruby atoms that in turn emit photons. The photons are reflected back and forth by the mirrors until they pass ...

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


Already a member? Login


CITE THIS PAGE:

Lasers 3. (2004, December 4). Retrieved December 23, 2024, from http://www.essayworld.com/essays/Lasers-3/18483
"Lasers 3." Essayworld.com. Essayworld.com, 4 Dec. 2004. Web. 23 Dec. 2024. <http://www.essayworld.com/essays/Lasers-3/18483>
"Lasers 3." Essayworld.com. December 4, 2004. Accessed December 23, 2024. http://www.essayworld.com/essays/Lasers-3/18483.
"Lasers 3." Essayworld.com. December 4, 2004. Accessed December 23, 2024. http://www.essayworld.com/essays/Lasers-3/18483.
JOIN NOW
Join today and get instant access to this and 50,000+ other essays


PAPER DETAILS
Added: 12/4/2004 11:43:33 AM
Category: Science & Nature
Type: Premium Paper
Words: 809
Pages: 3

Save | Report

SHARE THIS PAPER

SAVED ESSAYS
Save and find your favorite essays easier

SIMILAR ESSAYS
» Lasers And Their Applications
» Lasers And Their Uses
» Lasers -
» Five Imporant Events Of The 19
» Fiberoptics
» Tattoo Or Not To Tattoo... The
» Organizational Skills
» Fusion 2
» Holograms
» Holograms
Copyright | Cancel | Contact Us

Copyright © 2024 Essayworld. All rights reserved