Structure modeling and growing AgClхBr1−х, Ag1−xTlxBr1−xIx, and Ag1−xTlxClyIzBr1−y−z crystals for infrared fiber optics

IR Thermographic System Supplied with an Ordered Fiber Bundle for Investigation of Power Engineering Equipment and Units

“…(1) producing raw materials by the thermal-zone crystallization-synthesis technique, which enables to carry out both synthesis and purification simultaneously [6]; (2) growing single crystals of silver halides using the Bridgman technique based on directional crystallization [7]; (3) obtaining cylindrical billets by means of mechanical treatment; (4) manufacturing polycrystalline fibers using extrusion technique [8];…”

Highly transparent ceramics for the spectral range from 1.0 to 60.0 µm based on solid solutions of the system AgBr–AgI–TlI–TlBr

“…Widespectrum laser systems are particularly important, including covering "atmospheric transparence windows" (3-5 μm) and absorption bands of numerous molecular compounds: water molecules and oxygen-and carbon-containing impurities. Technologies for the synthesis of new crystals [6][7][8][9][10][11] , glasses [6,7,[12][13][14] , laser ceramics based on spinels [15][16][17][18] , and luminescent materials with a low-frequency phonon spectrum based on oxohalogenide systems-fluoride, chloride, bromide, and iodide-are being developed [19][20][21][22][23][24] . The authors note that the replacement of fluorine with other ions-chlorine, bromine, or iodine-in systems significantly extends the transparency range of glass-crystal ceramics to a longer-wave region.…”

Отечественные Разработки ИК Оптических Материалов На Основе Твердых Растворов Галогенидов Серебра И Одновалентного Таллия

“…В связи с этим представляло интерес исследовать четырехкомпонентную систему AgBr−AgI−TlBr−TlI, в частности ее квазибинарные сечения AgBr−TlI и AgBr−TlBr 0.46 I 0.54 . Данный выбор был обоснован схожими физико-химическими свойствами фазовых диаграмм плавкости систем AgCl−AgBr и TlBr−TlI, в которых образуется непрерывный ряд твердых растворов замещения и которые плавятся при более низкой температуре (412 и 419 • С), чем исходные компоненты [29,30].…”