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Thermal coefficient of refractive index of polycrystalline ZNSE, BaF/sub 2/ and CaF/sub 2/ in the visible and near infrared

Technical Report ·
OSTI ID:7137923
An interferometric technique has been used to measure the thermal coefficient of the refractive index of polycrystalline ZnSe, BaF/sub 2/, and CaF/sub 2/ at the HeNe laser wavelengths, 0.6328, 1.15, and 3.39 micrometers, in the range 25 to 65/sup 0/C. The values obtained were calculated using the observed change in optical path and the literature values for refractive index and thermal expansion coefficient. (GRA)
Research Organization:
Air Force Inst. of Tech., Wright-Patterson AFB, Ohio (USA). School of Engineering
OSTI ID:
7137923
Report Number(s):
AD-A-019526; GE/PH-75-2
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM FLUORIDES
CALCIUM COMPOUNDS
CALCIUM FLUORIDES
CALCIUM HALIDES
CHALCOGENIDES
CRYSTALS
EXPANSION
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
POLYCRYSTALS
REFRACTIVITY
SELENIDES
SELENIUM COMPOUNDS
TEMPERATURE DEPENDENCE
THERMAL EXPANSION
ZINC COMPOUNDS
ZINC SELENIDES