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Photonics Dictionary: K

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Koehler illumination
A two-stage illuminating system for a microscope in which the source is imaged in the aperture of the substage condenser by an auxiliary condenser, and the substage condenser in turn forms an image...
Koenig-Martens spectrophotometer
A visual, single-unit spectrophotometer with a biprism and a Wollaston prism. The Wollaston prism polarizes coincident images of the two halves of the entrance aperture.
Kovar
Westinghouse trade name for an alloy of iron, nickel and cobalt, which has the same thermal expansion as glass and therefore is often used for glass-to-metal or ceramic-to-metal seals.
kpsi
thousand pounds per square inch
Kramers-Kronig relation
Analysis of the reflection spectrum that allows the determination of the experimental dielectric function.
kron camera
Astronomical detector consisting of a photocathode isolated from the target by a coin value from which electrons are focused on a nuclear emission, producing tracks on the emission. Track density can...
krypton lamp
An arc lamp that has its cavity filled with krypton to produce a light source with unique characteristics.
KTP
potassium titanyl phosphate
Kubelka-Munk theory
A two-flux theory in which the radiation is assumed to be composed of two oppositely directed radiation fluxes through a continuous medium. The theory has been widely used to relate the total diffuse...
Kundt effect -> Faraday effect
The Faraday effect, named after the English scientist Michael Faraday, is a phenomenon in physics where the polarization plane of light is rotated when the light passes through a transparent medium...
kV
kilovolt
kVA
kilovoltampere
kVDC
kilovolt direct current
kW
kilowatt
kWh
kilowatt-hour
Kynar
Pennwalt's trade name for polyvinylidene fluoride, a material used in the jacket of fiber optic cables where low smoke emission is deemed more important than flexibility.

Photonics DictionaryK

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