Table 2

List of the passbands, with their respective structure and their spectral range in this study.

Letter Code Channel structure Spectral range (nm)
Al Al2O3/Al – Diamond 17–80
cBN MSM cBN – MSM architecture 1–193
cBN PIN cBN – PIN architecture 130–193
AlGaN 1 AlN/AlxGa1-xN 210–230
AlGaN 2 Alx’Ga1-x’N/Aly’Ga1-y’N 250–280

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