dark current


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dark current

n.
Unwanted current or signal in a photodetector in the absence of incident light, resulting from thermally excited electrons or leakage of current along the current path.

dark current

n
(Electrical Engineering) the residual current produced by a photoelectric device when not illuminated
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The vast canopy of woods spread itself to the margin of the river, overhanging the water, and shadowing its dark current with a deeper hue.
Toby led us to the very edge of this, and there stood whining, looking out on the dark current beyond.
This includes leakage current measurements, dark current measurements, 4-peak measurements, capacitance measurements in the DC and AC range.
The high performance InGaAs PIN PD is a front illuminated photodiode with a large modulation bandwidth, high responsivity, and low dark current.
Lowest possible dose achieving the best signal-to- noise ratio via a noise-free detection with a high dynamic range and no dark current
The new QImaging Retiga R1, Retiga R3 and Retiga R6 cameras offer valuable technical features such as highly efficient CCD sensor technology and deep cooling that virtually eliminates dark current noise.
Dark yet gripping, Jamaica Inn is an unfolding dark current of torrential forces, in which a woman must determine what her moral standards truly are amidst a crossroads of poverty, thuggery, and love.
Very high resolution achieving the best signal-to- noise ratio via a noise-free signal with no dark current
This technical guide describes infrared focal plane arrays (IRFPA) of photodiodes made from ternary II-VI alloy HgCdTe and the binary III-V alloy InSb, defining relevant dark current components for metallurgical photodiodes and barrier layer photoconductors and calculating the physical sources of shot noise and 1/f noise in infrared semiconductor structures.
The high-speed device parameters include reverse breakdown voltage at 160 V (minimum), dark current of 100 nA (under test conditions of 150 V), and a rise time of 2 nanoseconds (maximum).
The Reverse Dark Current (when no light is incident on the photodiodes) is only a few nA.
Like a PIN detector APD has a shot noise, which derives from the random statistical Poissonian fluctuations of the dark current that is normally given by [I.