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9 terms
Photonics Dictionary: R
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current x
R x
radio-frequency light source
A very uncommon lamp in which a tungsten electrode is heated to incandescence by a radio-frequency electrical current.
relative intensity noise
The inherent laser amplitude noise relative to the average optical power produced by the laser; the RIN decreases rapidly as current is increased.
remote sensing
Remote sensing is a method of data collection and observation where information about objects, areas, or phenomena on Earth's surface is gathered from a distance, typically using sensors onboard...
resistance heater
A crucible made of electrically resistive material through which a current is passed to heat the material inside, which then evaporates and is deposited as a thin film on a substrate. Resistance...
resistor
A device having electrical resistance and used in an electric current for purposes of protection, operation or control of current.
responsivity
The gain that occurs between light intensity incident on a CCD given by the photocurrent produced.
reverse bias
Voltage that produces current flow in the direction of greater resistance to the steady-state direct current; i.e., from the cathode to the anode.
rise time
Measurement of the time elapsed during the current output change from 10 to 90 percent in a photoconductor.
Rogovsky coil
Conductor element for use in integrated electro-optic systems that measures current flowing through it.
Photonics Dictionary
R
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