Abstract
The results of transmission coefficient measurements in the spectral range of 0.12–0.35 μm are presented for porous Lavsan and Lexan membranes with cylindrical pores. The exponential drop of the transmittance with increasing wavelength is observed for the 5–10 μm thick samples with micron and submicron diameters. The influence of the membrane geometrical properties and the metal coating of the membrane surface on the spectrally selective properties of porous diffraction filters has been studied. The possibility of displacement of the transmittance versus wavelength curve through growth of the metal layer on the membrane is demonstrated.
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