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arXiv · 1309.5024

Detecting an infrared Photon within an Hour -- Transition-Edge Detector at ALPS-II

Jan Dreyling-Eschweiler·Dieter Horns·Friederike Januschek·Axel Lindner
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Abstract

An essential design requirement of the ALPS-II experiment is the efficient detection of single photons with a very low instrumental background of 10 {\mu}Hz. In 2011 the ALPS collaboration started to set up a TES detector (Transition-Edge Sensor) for ALPS-II, the second phase of the experiment. Since mid of 2013 the setup is ready for characterization in the ALPS laboratory: an ADR cryostat (Adiabatic Demagnetization Refrigerator) as millikelvin environment, a low noise SQUID (Superconducting Quantum Interference Device) with electronics for read-out and a fiber-coupled high-efficient TES for near-infrared photons as sensor. First measurements have shown a good discrimination between noise and 1064 nm signals.

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Jan Dreyling-Eschweiler, Dieter Horns, Friederike Januschek, Axel Lindner. 2013-09-19. Detecting an infrared Photon within an Hour -- Transition-Edge Detector at ALPS-II. https://arxiv.org/abs/1309.5024

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