Additives as ionizing elements in N2 TE UV lasers |
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| Authors: | A Dias Tavares Jr A M Borges C E Fellows C A Massone |
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| Institution: | (1) Laboratório de Espectroscopia e Laser, Instituto de Fisica, Universidade Federal Fluminense, CP 100296, 24020 Niterói, RJ, Brazil;(2) Present address: Universidade do Estado do Rio de Janeiro, Rua Sã Francisco Xavier, 524 Maracanã, RJ, Brazil |
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| Abstract: | This work reports the role some additives have in pre-ionizing a N2 TE UV laser (337.1 nm). The modifications in both stimulated radiation characteristics and excitation-pulse period prove the different ionizing power of each element. The laser operating without a pre-ionizing wire device and with N2 plus different additives was able to generate pulses with a temporal width of the same order than those obtained when it was operating with N2 and a pre-ionizing wire device. Also, a relation between ionization efficiency and interelectrode distance has been established allowing the prediction of conditions for optimum laser-pulse width generation. |
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| Keywords: | 42 60 |
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