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Updated: Jun 13, 2026

In Situ Surface Temperature Measurement in a Conveyor Belt Furnace via Inline Infrared Thermography
Published on: May 30, 2020
Evaluation of an InSb infrared detector at liquid N(2) and liquid He temperatures
Abstract:
The performance of an InSb infrared detector has been evaluated at liquid nitrogen and liquid helium cryogenic temperatures. A significant improvement in sensitivity was observed when the detection system was Johnson noise limited. With 300-K background radiation and diffraction limited throughout, the NEP of the detector is 1.5 x 10(-16) W Hz(-(1/2)) at 1.65 microm. Potential improvement is expected especially for astro-physical observations which are made in lower photon background conditions.
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