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Cryogenically cooled ultra low vibration silicon mirrors for gravitational wave observatories

Shapiro, Brett and Adhikari, Rana X. and Aguiar, Odylio and Bonilla, Edgard and Fan, Danyang and Gan, Litawn and Gomez, Ian and Khandelwal, Sanditi and Lantz, Brian and MacDonald, Tim and Madden-Fong, Dakota (2017) Cryogenically cooled ultra low vibration silicon mirrors for gravitational wave observatories. Cryogenics, 81 . pp. 83-92. ISSN 0011-2275. https://resolver.caltech.edu/CaltechAUTHORS:20170309-141043946

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Abstract

Interferometric gravitational wave observatories recently launched a new field of gravitational wave astronomy with the first detections of gravitational waves in 2015. The number and quality of these detections is limited in part by thermally induced vibrations in the mirrors, which show up as noise in these interferometers. One way to reduce this thermally induced noise is to use low temperature mirrors made of high purity single-crystalline silicon. However, these low temperatures must be achieved without increasing the mechanical vibration of the mirror surface or the vibration of any surface within close proximity to the mirrors. The vibration of either surface can impose a noise inducing phase shift on the light within the interferometer or physically push the mirror through oscillating radiation pressure. This paper proposes a system for the Laser Interferometric Gravitational-wave Observatory (LIGO) to achieve the dual goals of low temperature and low vibration to reduce the thermally induced noise in silicon mirrors. Experimental results are obtained at Stanford University to prove that these dual goals can be realized simultaneously.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/j.cryogenics.2016.12.004DOIArticle
http://www.sciencedirect.com/science/article/pii/S0011227516302818PublisherArticle
ORCID:
AuthorORCID
Adhikari, Rana X.0000-0002-5731-5076
Additional Information:© 2016 Elsevier Ltd. Received 29 October 2016, Revised 7 December 2016, Accepted 9 December 2016, Available online 18 December 2016.
Group:LIGO
Subject Keywords:Low vibration cryogenics; Gravitational waves; Feedback control
Record Number:CaltechAUTHORS:20170309-141043946
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170309-141043946
Official Citation:Brett Shapiro, Rana X. Adhikari, Odylio Aguiar, Edgard Bonilla, Danyang Fan, Litawn Gan, Ian Gomez, Sanditi Khandelwal, Brian Lantz, Tim MacDonald, Dakota Madden-Fong, Cryogenically cooled ultra low vibration silicon mirrors for gravitational wave observatories, Cryogenics, Volume 81, January 2017, Pages 83-92, ISSN 0011-2275, http://dx.doi.org/10.1016/j.cryogenics.2016.12.004. (http://www.sciencedirect.com/science/article/pii/S0011227516302818)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:74993
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:09 Mar 2017 22:21
Last Modified:03 Oct 2019 16:45

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