What is the temperature dependence of the NIRCam sensor's responsivity?

In summary, the NIRCam instrument uses ten 2K × 2K HgCdTe detectors with a quantum efficiency of at least 70% for 3.5 micron light. The instrument has been cooled to a steady 39K since day 90. The physical difference between a 3.5 micron photon from a 299k object and a 3.5 micron photon from a 301k object is that the 299k photon is from a colder source and should not be detectable according to the 2nd Law of Thermodynamics.
  • #71
Sorry I was responding to this comment:
collinsmark said:
You can assume though that if the sensor was actually placed in a passive circuit, such that the photodetector, other components in the circuit, its enclosure, and everything else in the vicinity is all at the same temperature, the dark current density would measure 0.
I was wondering what powers the dark current measured in the paper when there is zero bias voltage, in the dark, and the sensor and surroundings at the same temperature? From Ohm's law we have P=I^2R
Devin-M said:
View attachment 312635
https://apps.dtic.mil/sti/pdfs/ADA429637.pdf
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