Qualification of mechanically fabricated IR filters using FTIR spectroscopy

W. Bier; Andreas E. Guber

doi:10.1117/12.56496

1 March 1992 Qualification of mechanically fabricated IR filters using FTIR spectroscopy

W. Bier, Andreas E. Guber

Proceedings Volume 1575, 8th Intl Conf on Fourier Transform Spectroscopy; (1992) https://doi.org/10.1117/12.56496
Event: Eighth International Conference on Fourier Transform Spectroscopy, 1991, Lubeck-Travemunde, Germany

Abstract

A new method for the mechanical manufacturing of microstructured bodies has been developed by the Karisruhe Nuclear Research Center in cooperation with the MesserschmittBôlkow-Blohm company, Munich-Ottobrunn. This technique is based on the surface structuring of foils by means of high-precision machining using, for example, rectangular profiled microdiamondsi. In Fig. 1, a scanning electron microscopy (SEM) of a 100 pm thick aluminum foil with a rectangular groove structure is shown. If copper foils, which have been microstructured in the same way, are stacked on top of each other and are subjected to diffusion welding, finely structured bodies are obtained which are covered by a multitude of microscopically small channels (Fig. 2). The copper body shown possesses approximately 8700 channels/cm2. The optical transparency is about 57 %. The length of the microstructure samples is freely optional within wide limits.

Citation Download Citation

W. Bier and Andreas E. Guber "Qualification of mechanically fabricated IR filters using FTIR spectroscopy", Proc. SPIE 1575, 8th Intl Conf on Fourier Transform Spectroscopy, (1 March 1992); https://doi.org/10.1117/12.56496

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