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Double Bandpass Absorption Glass Filter
S. S. Moslem, Yahia. H. Elbashar, Diaa. A. Rayan and Hussam. H. Hassan

This review is deal with the physics of double bandpass glass filters. The understanding of this type of optical filters requires exploration of fundamentals of glass materials. In particular, the doping the glasses with of transition metal ions is causing the optical band effect, allowing obtaining materials with the defined optical absorption wavelengths.

Keywords: Optical filters, Glass materials, Transition metal ions, Structural and optical, spectroscopic analysis, bandpass filters