Transmission Spectra Investigation of Nanoporous Al2O3 Matrices Filled with KDP, ADP and TGS Crystals at Visible, NIR, and SubTerahertz Ranges

In this paper, the modified technology of nanoporous aluminum oxide (Al
2
O
3
) matrices filling with the KDP, ADP, and TGS crystals is proposed. The transmission spectra of the grown structures were studied at 300 -3000 nm and 50-1200 GHz spectral ranges. Because of the performed investigation, due to the significant transmission of nanoporous matrices in the terahertz range, in-depth analysis needs to be performed for their use as substrates for the implementation of nanoplasmonic devices, given the regular (periodic) structure of nanopores in these matrices.