If you wish to contribute or participate in the discussions about articles you are invited to contact the Editor
Microwave Amplification by Stimulated Emission of Radiation: Difference between revisions
Jump to navigation
Jump to search
(Created page with "{{Glossary |Term=Maser |Definition=A maser is a device that produces coherent electromagnetic waves through amplification by stimulated emission. Historically, “maser” derive...") |
No edit summary |
||
| Line 1: | Line 1: | ||
{{Glossary | {{Glossary | ||
|Term=Maser | |Term=Maser | ||
|Definition=A maser is a device that produces coherent electromagnetic waves through amplification by stimulated emission. Historically, “maser” derives from the original, upper-case acronym MASER, which stands for "Microwave Amplification by Stimulated Emission of Radiation". The lower-case usage arose from technological development having rendered the original denotation imprecise, because contemporary masers emit EM waves (microwave and radio frequencies) across a broader band of the electromagnetic spectrum; thus, the physicist Charles H. Townes’s suggested usage of “molecular” replacing “microwave”, for contemporary linguistic accuracy. | |Definition=A maser is a device that produces coherent electromagnetic waves through amplification by stimulated emission. Historically, “maser” derives from the original, upper-case acronym MASER, which stands for "Microwave Amplification by Stimulated Emission of Radiation". The lower-case usage arose from technological development having rendered the original denotation imprecise, because contemporary masers emit EM waves (microwave and radio frequencies) across a broader band of the electromagnetic spectrum; thus, the physicist Charles H. Townes’s suggested usage of “molecular” replacing “microwave”, for contemporary linguistic accuracy. In 1957, when the optical coherent oscillator was first developed, it was denominated optical maser, but usually called laser (Light Amplification by Stimulated Emission of Radiation), the acronym Gordon Gould established in 1957. | ||
|Source=J.R. Singer, Masers, John Whiley and Sons Inc., 1959. | |Source=J.R. Singer, Masers, John Whiley and Sons Inc., 1959. | ||
}} | }} | ||
Revision as of 13:06, 20 February 2011
| Term | Term::Maser |
|---|---|
| Abbreviation | hasAbbreviation:: |
| Definition | [[hasDefinition::A maser is a device that produces coherent electromagnetic waves through amplification by stimulated emission. Historically, “maser” derives from the original, upper-case acronym MASER, which stands for "Microwave Amplification by Stimulated Emission of Radiation". The lower-case usage arose from technological development having rendered the original denotation imprecise, because contemporary masers emit EM waves (microwave and radio frequencies) across a broader band of the electromagnetic spectrum; thus, the physicist Charles H. Townes’s suggested usage of “molecular” replacing “microwave”, for contemporary linguistic accuracy. In 1957, when the optical coherent oscillator was first developed, it was denominated optical maser, but usually called laser (Light Amplification by Stimulated Emission of Radiation), the acronym Gordon Gould established in 1957.]] |
| Source | hasSource::J.R. Singer, Masers, John Whiley and Sons Inc., 1959. |