Fundamental design principles for reflective membranes in thermal noise limited cavities

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Fundamental design principles for reflective membranes in thermal noise limited cavities

Abstract (2019)

Author(s)

Johannes Dickmann (Physikalisch-Technische Bundesanstalt)

Jan Meyer (Technical University of Braunschweig)

Tim Kaseberg (Physikalisch-Technische Bundesanstalt)

Florian F. Bruns (Physikalisch-Technische Bundesanstalt)

Richard Norte (TU Delft - Dynamics of Micro and Nano Systems, TU Delft - QN/Groeblacher Lab)

Peter G. Steeneken (TU Delft - Dynamics of Micro and Nano Systems, TU Delft - QN/Steeneken Lab)

Stefanie Kroker (Technical University of Braunschweig, Physikalisch-Technische Bundesanstalt)

DOI related publication

https://doi.org/10.1109/CLEOE-EQEC.2019.8873151 Final published version

To reference this document use

https://resolver.tudelft.nl/uuid:f6fae28d-2026-4add-a283-f9aa5d963ddb

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Publication Year

2019

Language

English

Event

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76

Abstract

Brownian thermal noise is a severe limitation for the sensitivity of many optomechanical high-precision measurement systems. To push the sensitivity limit it is essential to quantify how device geometry and material properties affect thermal noise. As an important building block for optomechanical experiments, we present the analytical calculation of Brownian thermal noise of circular clamped reflective membranes in Fabry Perot cavities. To compute the thermal noise, we investigate the influence of the effective membrane position x (compare Fig. 1(a)) to the eigenfrequency of the cavity.