Theory of the transmission of metal strip gratings on a dielectric substrate application to submillimeter laser coupling |
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| Authors: | J P Creen D Vèron and P Belland |
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| Institution: | (1) Association EUR-CEA sur la Fusion Contrôlée, B.P. no. 6, F-92265 Fontenay-aux-Roses, France;(2) Laboratoire de Dispositifs Infrarouge, Université Paris VI, 4 place Jussieu, F-75252 Paris Cedex 05, France |
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| Abstract: | The advantages of supported metal strip gratings with respect to free-standing metal meshes are pointed out for applications as laser output couplers. A new, simple formula for the power transmission through the strip grating on a dielectric plate is derived from a line equivalent-circuit model. This formula is in good agreement with measurements performed on several samples, at different submillimeter wavelengths. An application to output couplers of far-infrared gas discharge lasers allows to improve the reliability of such lasers.x Unité associée au CNRS. U.A. 836. |
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| Keywords: | dielectrically backed metal strip gratings submillimeter laser output couplers |
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