High-Resolution Transmission Gratings For Use In The Spectroscopy Of Laser-Produced Plasmas

A. G. Michette; E. Fill; T. Taguchi; M. Kiihne

doi:10.1117/12.961831

27 November 1989 High-Resolution Transmission Gratings For Use In The Spectroscopy Of Laser-Produced Plasmas

A. G. Michette, E. Fill, T. Taguchi, M. Kiihne

Proceedings Volume 1140, X-Ray Instrumentation in Medicine and Biology, Plasma Physics, Astrophysics, and Synchrotron Radiation; (1989) https://doi.org/10.1117/12.961831
Event: 1989 International Congress on Optical Science and Engineering, 1989, Paris, France

Abstract

Carbon transmission gratings with line densities in the range 7000-17500 lines/mm have been made, by contamina-tion lithography, on thin boron nitride (80 nm) or carbon (25-35 nm) substrates. The efficiencies of these gratings in the water-window wavelength range can be enhanced by coating with metal (preferably nickel, chromium or copper) at an angle; a model used to calculate the optimum coating angles and thicknesses is presented. Calculated optimum efficiencies (including phase effects) vary considerably over the spectral range investigated but can approach 20% in the first order. A preliminary characterisation of the gratings has been carried out in the radiometric laboratory of the PTB at BESSY, Berlin. It is intended to use the gratings in the study of laser-produced plasmas.

Citation Download Citation

A. G. Michette, E. Fill, T. Taguchi, and M. Kiihne "High-Resolution Transmission Gratings For Use In The Spectroscopy Of Laser-Produced Plasmas", Proc. SPIE 1140, X-Ray Instrumentation in Medicine and Biology, Plasma Physics, Astrophysics, and Synchrotron Radiation, (27 November 1989); https://doi.org/10.1117/12.961831

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