1 outline 13.1 use of optical materials. 13.2 light and vision. 13.3 interaction of light with...
TRANSCRIPT
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Outline
13.1 Use Of Optical Materials.
13.2 Light And Vision.
13.3 Interaction Of Light With Electrons In
Solids.
13.3.1 Absorption of Light.
13.3.2 Color
13.3.3 Refraction.
13.3.4 Reflection of Light.
13.3.5 Total Internal Reflection.
13.3.6 Polarization.
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13.3.2 Color
Silica glasses are colored by incorporating transition metal ions during melting in amounts ranging form o.1%~to~5%.
The ions substitute for matrix atoms and create new levels in the band gap of the glass.
Specific wavelengths are now preferentially absorbed at these impurity levels, giving rise to optical transitions at specific photon energies.
In the production of color, we distinguish between pigments which are not soluble in the support and dyes which are soluble pigments are ceramics (minerals) containing impurities.
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Outline
13.1 Use Of Optical Materials.
13.2 Light And Vision.
13.3 Interaction Of Light With Electrons In
Solids.
13.3.1 Absorption of Light.
13.3.2 Color
13.3.3 Refraction.
13.3.4 Reflection of Light.
13.3.5 Total Internal Reflection.
13.3.6 Polarization.