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Mathematical model of thermal shields for long-term stability optical resonators

Sanjuan, Jose and Guerlebeck, Norman and Braxmaier, Claus (2015) Mathematical model of thermal shields for long-term stability optical resonators. Optics Express, 23 (14), pp. 17892-17908. Optical Society of America. DOI: 10.1364/OE.23.017892 ISSN 1094-4087

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Abstract

Modern experiments aiming at tests of fundamental physics, like measuring gravitational waves or testing Lorentz Invariance with unprecedented accuracy, require thermal environments that are highly stable over long times. To achieve such a stability, the experiment including typically an optical resonator is nested in a thermal enclosure, which passively attenuates external temperature fluctuations to acceptable levels. These thermal shields are usually designed using tedious numerical simulations or with simple analytical models. In this paper, we propose an accurate analytical method to estimate the performance of passive thermal shields in the frequency domain, which allows for fast evaluation and optimization. The model analysis has also unveiled interesting properties of the shields, such as dips in the transfer function for some frequencies under certain combinations of materials and geometries. We validate the results by comparing them to numerical simulations performed with commercial software based on finite element methods.

Item URL in elib:https://elib.dlr.de/98809/
Document Type:Article
Title:Mathematical model of thermal shields for long-term stability optical resonators
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Sanjuan, JoseDLR-RYUNSPECIFIED
Guerlebeck, NormanUNSPECIFIEDUNSPECIFIED
Braxmaier, Clausclaus.braxmaier (at) dlr.deUNSPECIFIED
Date:2015
Journal or Publication Title:Optics Express
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:23
DOI :10.1364/OE.23.017892
Page Range:pp. 17892-17908
Publisher:Optical Society of America
ISSN:1094-4087
Status:Published
Keywords:Fabry-Perot, Thermal effects, Metrological instrumentation.
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben GRACE Follow-On
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Systems Enabling Technologies
Deposited By: Aguilera, Deborah
Deposited On:03 Nov 2015 11:57
Last Modified:15 Jan 2019 11:30

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