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Missouri University of Science and Technology
Electromagnetic fields -- Permeability<br />Dielectric measurements<br />Filters and filtration<br />Infrared spectroscopy
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A Study Of Far Infrared Grid Filters, Harold Victor Romero
A Study Of Far Infrared Grid Filters, Harold Victor Romero
Doctoral Dissertations
"The diffraction theory for the transmission of electromagnetic fields through a grid in a dielectric is derived and experimentally checked in the visible wavelength region. In the far infrared, an approximate mathematical representation is found to describe the grids in dielectrics. The empirical equations in the far infrared are combined with the electrical circuit-transmission line analog for inductive grids. Detailed structure of the transmittance versus wave number curves are presented. Then the theory of multielement grid filters is derived and compared with experiment. The properties of the filters can be predicted from a knowledge of the characteristics of the individual …