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By Jon Singer on May 4, 2011
Joss Institute Projects:
More Information about TEA Nitrogen Lasers
Please note: this preliminary version is, as of early May, 2011, only just begun, and is extremely incomplete and disordered. If you want further references or you want to ask a question, you will find my email address at the bottom of the page.
About Nitrogen Lasers
The nitrogen laser was discovered in 1963. As far as I can recall, it was the first ultraviolet gas laser, the first pulsed ultraviolet laser, and possibly the first-ever ultraviolet laser. It puts out short pulses of light at a wavelength of about 337.1 nm, a little shorter than the wavelength of an ordinary “blacklight” but not quite short enough to be described as “midwave UV”. This light is not visible, and it is even more dangerous than the light from small visible lasers. In addition, the laser operates on high voltage, so you should ONLY attempt to built it if you are prepared to exercise appropriate safety precautions. (I will list a number of these as we proceed.)
The nitrogen laser has very high gain. Excited nitrogen gas amplifies so well, in fact, that nitrogen lasers can usually operate without any mirrors» Read the rest