Berlin 2014 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 57: Precision measurements and metrology V (with Q)

A 57.5: Vortrag

Freitag, 21. März 2014, 17:45–18:00, DO24 1.101

Study of photoreceivers for space-based interferometry — •Germán Fernández Barranco — Albert-Einstein-Institut Hannover

The photoreceiver is a basic element in laser interferometry systems presented in space-based missions such as Lisa Pathfinder or GRACE-FO. The special requirements demanded by those systems rule out any commercial solution for the photoreceiver. Therefore, new photoreceiver designs have been developed and characterized in the Max Planck Institute for Gravitational Physics, Hannover, focusing the efforts on the bandwidth and noise performance. Additionally, a high-accuracy measurement system was configured to perform scans of the photodiodes' surface, which allow a real understanding of the spatial response of those devices.