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Laser-dilatometer calibration using a single-crystal silicon sample

Hamann, Ines and Sanjuan, Josep and Spannagel, Ruven and Gohlke, Martin and Wanner, Gudrun and Schuster, Sönke and Guzman, Felipe and Braxmaier, Claus (2019) Laser-dilatometer calibration using a single-crystal silicon sample. International Journal of Optomechatronics, 13 (1), pp. 18-29. Taylor & Francis. DOI: 10.1080/15599612.2019.1587117 ISSN 1559-9612

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Abstract

Marginal changes in geometrical dimensions due to temperature changes affect the performance of optical instruments. Highly dimensionally stable materials can minimize these effects since they offer low coefficients of thermal expansion (CTE). Our dilatometer, based on heterodyne interferometry, is able to determine the CTE in 10^-8 K^-1 range. Here, we present the improved interferometer performance using angular measurements via differential wavefront sensing to correct for tilt-to-length coupling. The setup was tested by measuring the CTE of a single-crystal silicon at 285 K. Results are in good agreement with the reported values and show a bias of less than 1%.

Item URL in elib:https://elib.dlr.de/127606/
Document Type:Article
Title:Laser-dilatometer calibration using a single-crystal silicon sample
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hamann, InesDLR-RYUNSPECIFIED
Sanjuan, JosepDLR-RYUNSPECIFIED
Spannagel, RuvenDLR-RY, BremenUNSPECIFIED
Gohlke, MartinDLR-RY, BremenUNSPECIFIED
Wanner, GudrunMax-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut) undUNSPECIFIED
Schuster, SönkeMax-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut) undUNSPECIFIED
Guzman, FelipeDLR BremenUNSPECIFIED
Braxmaier, ClausDLR, BremenUNSPECIFIED
Date:16 April 2019
Journal or Publication Title:International Journal of Optomechatronics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:13
DOI :10.1080/15599612.2019.1587117
Page Range:pp. 18-29
Publisher:Taylor & Francis
ISSN:1559-9612
Status:Published
Keywords:Dilatometry; silicon; differential wavefront sensing; simulation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):R - Systems Engineering Optische Systeme
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Systems Enabling Technologies
Deposited By: Hamann, Ines
Deposited On:02 Jul 2019 10:47
Last Modified:02 Jul 2019 10:47

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