18 - Optical Properties of Ceramics Optical Properties of...

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ptical Properties of Ceramics Optical Properties of Ceramics EMA 4144
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Interactions between Light and Solid
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Definitions • Refraction ispersion Dispersion • Reflectivity • Transmissivity • Absorption Emission, luminescence, fluorescence, phosphorescence will be discussed later.
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Color in history • Goethe – treatise on color ( 95 years old, paleontology, color, literature) Newton attempted “Opticks” light rays are not colored. igments are indicators of culture level in Pigments are indicators of culture level in archaeology. • How do we see color? (Eye – resolution and color) • What colors do we see on Mount Everest, moon or Mars?
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Today’s research interests • Metamaterials ransparent materials (Batteries etc ) Transparent materials (Batteries, etc.) • Lasers (light amplification by stimulated mission of radiation) emission of radiation) •L E D s • Nonlinear optics
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Color in ceramics Ligand field theory
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eflection from ceramic Reflection from ceramic surfaces
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Translucent ceramics • See 32.8 CN on page 583
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BaLiF3 n =1.64 Φ 120 × 100t BaLiF3 Single Crystal made by Czochralski method MgO single crystal by arc fusion
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18 - Optical Properties of Ceramics Optical Properties of...

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