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Gas Lasers - Introduction (436 words) |
 | The word "laser" is an acronym for Light Amplification by Stimulated Emission of Radiation. |
| The primary wavelengths of laser radiation for current military and commercial applications include the ultraviolet, visible, and infrared regions of the spectrum. |
| Ultraviolet radiation for lasers consists of wavelengths between 180 and 400 nm. |
| How gas-ion lasers work (1503 words) |
| Argon lasers are normally rated by the power level produced by the six simultaneously lasing wavelengths from 514.5 nm to 457.9 nm. |
| This is accomplished in an ion laser by installing an etalon, such as the Lexel Model 503 Etalon, in the laser cavity as shown in the figure above. |
| The windows of the laser plasma tube through which the laser light must pass are aligned at Brewster's angle to eliminate the high reflective losses from the surfaces of the windows. |
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