sat Laser http://satlaser.com What a Laser Can Do Tue, 20 Apr 2010 16:54:15 +0000 http://wordpress.org/?v=2.9.2 en hourly 1 Laser http://satlaser.com/2010/04/20/laser/ http://satlaser.com/2010/04/20/laser/#comments Tue, 20 Apr 2010 16:54:15 +0000 admin http://satlaser.com/?p=5 The word laser originally was the upper-case LASER, the acronym from Light Amplification by Stimulated Emission of Radiation, wherein light broadly denotes electromagnetic radiation of any frequency, not only the visible spectrum; hence infrared laser, ultraviolet laser, X-ray laser, et cetera. Because the microwave predecessor of the laser, the maser, was developed first, devices that emit microwave and radio frequencies are denoted “masers”. In the early technical literature, especially in that of the Bell Telephone Laboratories researchers, the laser was also called optical maser, a currently uncommon term, moreover, since 1998, Bell Laboratories adopted the laser usage. Linguistically, the back-formation verb to lase means “to produce laser light” and “to apply laser light to”. The word laser sometimes is used in an extended sense to describe a non-laser-light technology, e.g. a coherent-state atom source is an atom laser.

source: wikipedia

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