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Development of Far-Infrared-Transmitting Te Based Glasses Suitable for Carbon Dioxide Detection and Space Optics


  • This work was supported by NSF-DMR grant No. 0502577 as part of the Materials World Network program. We would like to thank the NSF IMI-NFG for their financial support for A.A.W. We are also very grateful to the European Space Agency for sponsoring this program.


Far-infrared transmitting telluride glasses are synthesized by stabilizing the Ge-Te amorphous covalent network with addition of iodine. These new glasses show good resistance toward crystallization and are therefore compatible for designing complex IR optics for detection of CO2 (see figure). Moulded optics can be prepared from these glasses without loss in optical properties.

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