Novel concept of electric discharge oxygen-iodine laser |
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Authors: | J Schmiedberger V Jirásek J Kodymová and K Rohlena |
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Institution: | (1) Institute of Physics, Academy of Sciences CR, Na Slovance 2, 182 21 Prague 8, Czech Republic |
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Abstract: | A novel concept of discharge oxygen-iodine laser (DOIL) is presented. The supersonic DOIL includes a discharge singlet oxygen
generator (DSOG) and discharge atomic iodine generator (DAIG). The operation of DSOG is based on a fast mixing of hybrid argon
plasma jet of DC electric arc and RF discharge with a neutral molecular oxygen stream. The goal of our effort is achievement
of DOIL oscillations by this new discharge technique, which should provide the singlet oxygen yields exceeding 30% at the
total pressures higher than 10 torr. The DAIG operation is based on a cw/pulse RF discharge dissociation of iodine donors
directly inside a laser iodine injector. This method substitutes the classic dissociation of molecular iodine by energy of
singlet oxygen, which saves its energy for laser generation and so can increase the laser efficiency. The laser power could
be thus enhanced by up to 25% if this method is employed in a chemical oxygen-iodine laser (COIL) operation, and even 3 times
in DOIL without increase in the iodine laser pumping by singlet oxygen. |
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Keywords: | PACS" target="_blank">PACS 42 55 Ks Chemical lasers 52 75 Hn Plasma torches 52 80 Pi High-frequency and RF discharges |
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