Found a useful table for Nitrides from wikipedia.
Continue reading “Nitrides”Category: Functional coating
Some notes about ITO
Indium tin oxide (ITO) is tin-doped In2O3, a n-type wide-bandgap heavily doped (or degenerate) semiconductor with certain metal-like properties. Therefore it is a transparent conductor, and broadly used in variety of industries.
Continue reading “Some notes about ITO”Optical path for reflection/transmission measurement in Perkin Elmer spectrophotometer
The following figure from Perkin Elmer shows the optical path for transmission and reflection measurements using an integrating sphere.
Continue reading “Optical path for reflection/transmission measurement in Perkin Elmer spectrophotometer”Low-E glass basics
Low-emissivity (low-E) technology is broadly adopted to develop cost-effective, energy-efficient Low-E glass for buildings and vehicles.
Continue reading “Low-E glass basics”Photo elastic modulator
photo elastic modulator
Photo elastic modulator (PEM) is one the critical components in a phase modulated ellipsometer, which modulates phase and amplitude changes in detected signal, based on that Psi and Delta will be measured and n, k, d, and others accordingly in principle.
Continue reading “Photo elastic modulator”Transmittance/Haze/Clarity measurement-ASTM D 1003
As a simplified view, light is incident upon a sample, three processes occur: transmission, absorption, and reflection, as schematically shown in the follow figure, including retroflection, diffuse reflection, specular reflection, diffuse transmission, and specular transmission.
Continue reading “Transmittance/Haze/Clarity measurement-ASTM D 1003”Polymer hard coat
Hard coat is an indispensable materials in consumer electronics, building, automobile, medical, and optics industries to add on more multifunctions to the base materials, e.g. anti-reflection (AF), anti-glare (AG), Anti-smudge, Anti-fingerprint and more.
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