Erlangen 2018 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 62: Poster: Quantum Optics and Photonics V
Q 62.50: Poster
Donnerstag, 8. März 2018, 16:15–18:15, Redoutensaal
Setup for the measurement of stress-induced optical birefringence — •Jan Meyer1,3, Johannes Dickmann1, Rene Glaser2, Carol Bibiana Rojas Hurtado1, Walter Dickmann1,3, and Stefanie Kroker1,3 — 1Physikalisch-Technische Bundesanstalt Braunschweig, Bundesallee 100, Braunschweig, Germany — 2Friedrich-Schiller-Universität Jena, Institut für Festkörperphysik, Helmholtzweg 5, Jena, Germany — 3Technische Universität Braunschweig, LENA Laboratory for Emerging Nanometrology,Pockelsstraße 14, Braunschweig, Germany
Optomechanical systems for high-precision sensing such as optical ring resonators or gravitational wave detectors require a detailed knowledge of mechanical and optical material parameters.
We introduce a versatile setup for the dynamic measurement of optical and mechanical properties, for example of mechanical loss, birefringence and elastic tensors. To perform frequency dependent (resonant and off-resonant) investigations we drive the samples by piezo-electric actuators or strong quasi-electrostatic fields. The mechanical motion of the sample is monitored by a fringe-locked Michelson Interferometer based on a stabilized 632 nm HeNe-Laser. To measure the dynamically induced birefringence we couple the setup to a tunable light source (300 nm...2000 nm) based on a Czerny-Turner monochromator that can be flexibly connected to either an ellipsometer or Mach-Zehnder interferometer.