Difference between revisions of "Laser"
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[[Laser]] is a word formed from the acronym "Light Amplification by Stimulated Emission of Radiation." | [[Laser]] is a word formed from the acronym "Light Amplification by Stimulated Emission of Radiation." | ||
| − | Laser beams are [[phase coherent]] and self-[[parallel]] (they do not spread out), due to the way they are created, although many cheap laser pointers exhibit beam dissipation due to cheap manufacturing. | + | Laser beams are [[phase coherent]] and self-[[parallel]] (they do not spread out), due to the way they are created, although many cheap laser pointers exhibit beam dissipation due to cheap manufacturing. This is much more of a problem with Indian and Chinese-manufactured components, as American manufacturers are held to higher standards in workmanship and materials. <ref>http://www.thechinaexpat.com/what-everybody-ought-to-know-about-chinese-manufacturing/</ref> |
The use of lasers is very important in [[science]] and [[medicine]]; they have also become ubiquitous in [[CD-ROM]] and [[DVD]] players and as pointers. | The use of lasers is very important in [[science]] and [[medicine]]; they have also become ubiquitous in [[CD-ROM]] and [[DVD]] players and as pointers. | ||
Revision as of 16:32, March 1, 2012
Laser is a word formed from the acronym "Light Amplification by Stimulated Emission of Radiation."
Laser beams are phase coherent and self-parallel (they do not spread out), due to the way they are created, although many cheap laser pointers exhibit beam dissipation due to cheap manufacturing. This is much more of a problem with Indian and Chinese-manufactured components, as American manufacturers are held to higher standards in workmanship and materials. [1]
The use of lasers is very important in science and medicine; they have also become ubiquitous in CD-ROM and DVD players and as pointers. [[1]]