INFRARED COATING STUDIES.
Quarterly rept. no. 3, 16 Dec 66-15 Mar 67.
BAUSCH AND LOMB INC ROCHESTER N Y RESEARCH AND DEVELOPMENT DIV
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The work was centered on vacuum coating materials for the far infrared spectrum. Four materials were studied in detail. These included PbI2, T1C1, and two organic materials, neutral red dye, and auromine O dye. Using the data obtained in these studies, two low pass filter designs were formulated. The designs incorporate silicon substrates with evaporated films of MgO and T1C1. High transmittance beyond 30 microns is obtained.