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Improved excitation techniques for atmospheric pressure CO2 lasers

Improved excitation techniques for atmospheric pressure CO2 lasers

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© The Institution of Electrical Engineers
Published

A simple and rugged electrode structure is described for the production of uniform pulse-excited discharges throughout large volumes at atmospheric pressure. Output energy densities of 18 mJ/cm3 have been achieved in a multimode CO2 laser. The performance is compared with that of a novel mesh-cathode electrode system.

Inspec keywords: electrodes; gas lasers; excitation; carbon compounds

Other keywords: electrode structure; CO2; excitation; atmospheric pressure lasers; 18mJ/cm3

Subjects: Dielectric breakdown and discharges; Dielectric materials and properties; Electric discharges; Gas lasers; Laser optical systems: design and operation; CO<sub>2</sub> lasers; Gas discharges

References

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      • Application 57848, 4th December 1970, British Patent.
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      • K.A. Laurie , M.M. Hale . Folded-path atmospheric-pressure CO2 lasers. IEEE Trans. , 530 - 532
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      • A.M. Robinson . Afterglow gain measurements in CO2-He-N2 mixtures at pressures up to 1 atmosphere. Can. J. Phys. , 1906 - 2001
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      • A.F. Gibson , M.F. Kimmitt , A.C. Walker . Photon drag in germanium. Appl. Phys. Lett. , 75 - 77
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      • A.K. Laflamme . Double discharge excitation for atmospheric pressure CO2 lasers. Rev. Sci. Instrum. , 1578 - 1581
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