Cryogenic optical shadow sensors for gravitational wave detectors

Amit Singh Ubhi,John Bryant,David Hoyland,Denis Martynov

Cryogenics（2022）

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摘要

•Simulation and experimental tests determined cryogenic operation was viable.•Cryogenic operation of the LED resulted in improved quantum efficiency.•Temperature stabilisation is imperative to ensure the response is deterministic.•Shot noise sensitivity improved from 6×10-11 to 4.5×10-11m/Hz.

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关键词

Sensors,Cryogenic,Shot noise,Controls

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