dark current


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dark current

[′därk ‚kər·ənt]
(electronics)

dark current

The current that flows in a photodetector when it is not receiving any light. It may increase as the temperature rises.
References in periodicals archive ?
Photo detectors processed using our epitaxial wafers provide significant advantages, including lower dark current, better shunt resistance and overall improved performance at lower operating temperatures.
Past experience indicates that this should dramatically reduce the variability of dark current and lower the top-to-bottom variation of the CCDs.
Tenders are invited for: Low dark current vlwir type 2 super lattices (t2sl) infra red detectors
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
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).
Figure 3 shows a detailed view of the readout channel, which includes a dark current cancellation circuit, switched-capacitor integrator, and sample-and-hold circuit.
Four-channel non-descanned detectors with higher sensitivity, reduced dark current, and broad spectral range allow for real-time unmixing of closely spaced probes for accurate and high-contrast spectral imaging.
These infrared focal plane arrays (FPAs) benefit from cooling to help mitigate dark current in order to boost the signal to noise ratio (SNR) thus increasing performance and effective standoff range.
The use of closed loop thermo-electric coolers significantly reduces dark current and dark current noise, enhancing the camera's ability to see in the dark.
There was already a dark current just below the surface within the crowd that believed Boro had peaked at Eindhoven and since then has slowly been pulled back down towards the abyss by football gravity.
An appendix contains a MathCAD program for modeling the dark current in the HgCdTe diode for various combinations of vacancies and extrinsic dopants.