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Dresden 2017 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 71: Superconductivity: Cryodetectors and Cryotechnique

TT 71.5: Talk

Thursday, March 23, 2017, 16:00–16:15, HSZ 201

Silicon as an optical material for precision applications at cryogenic temperatures — •Rene Glaser1, Stefanie Kroker2, Johannes Dickmann2, Carol B. Rojas-Hurtado2, and Ronny Nawrodt11Friedrich-Schiller University Jena, Institute for Solid State Physics, Helmholtzweg 5, 07743 Jena, Germany — 2Physikalisch-Technische Bundesanstalt, Metrology for Functional Nanosystems, Bundesallee 100, 38116 Braunschweig, Germany

Silicon is a promising candidate material for precision instrumentation applications such as laser stabilization cavities or future interferometric gravitational wave detectors. Here, applications benefit from the low opto-mechanical noise and its excellent thermal properties.

We present a systematic study of optical properties of silicon-based optical components and show the influence of optical properties on the metrological applications. The focus of our studies lies on properties at 1550 nm in a wide temperature range from 4.2 K to 300 K.

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