1 January 1987 Tellurium Halide Glasses, New Materials For I.R. Fibers
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Proceedings Volume 0843, Infrared Optical Materials and Fibers V; (1987) https://doi.org/10.1117/12.968206
Event: Cambridge Symposium on Fiber Optics and Integrated Optoelectronics, 1987, Cambridge, MA, United States
A new class of I.R. transmitting glasses have been discovered in the binary systems Te-Cl and Te-Br and in the ternary systems Te-Cl-S, Te-Cl-Se, Te-Br-S, Te-Br-Se, Te-I-Se. The ternary glasses have a very high resistance towards devitrification. The glass temperature Tg is ranging from 50 to 80° C depending on the composition. The S or Cl containing glasses have their I.R. edge located in the 13 pm region while the compositions not containing those light elements have their multiphonon edge near 20 μm. A typical glass composition such as Te3Br2Se has a potential high transparency of about 10 dB/km at 10.6 μm estimated from band-gap and multiphonon absorption. Samples prepared from high purity compounds show no parasitic absorption bands due to OH, SH, and so on.
© (1987) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jacques Lucas, Jacques Lucas, Xiang Hua Zhang, Xiang Hua Zhang, Gilles Fonteneau, Gilles Fonteneau, } "Tellurium Halide Glasses, New Materials For I.R. Fibers", Proc. SPIE 0843, Infrared Optical Materials and Fibers V, (1 January 1987); doi: 10.1117/12.968206; https://doi.org/10.1117/12.968206


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