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Solid solutions of silver and monovalent thallium halides for infrared optics

In this paper, we examined a part of the Ag-Tl-I-Br tetragon concentric tetrahedron in the AgBr-AgI-TlI-TlBr section and showed the regions of compositions suitable for growing single crystals from which various optical elements can be made for medium (2 to 50 μm) and far (up to 100 μm) infrared spectral area.