Cryogenically cooled ultra low vibration silicon mirrors for gravitational wave observatories. Shapiro, B., Adhikari, R. X., Aguiar, O., Bonilla, E., Fan, D., Gan, L., Gomez, I., Khandelwal, S., Lantz, B., MacDonald, T., & Madden-Fong, D. Cryogenics, 81:83--92, Elsevier, January, 2017. o̧pyright 2016 Elsevier Ltd. Received 29 October 2016, Revised 7 December 2016, Accepted 9 December 2016, Available online 18 December 2016.![Cryogenically cooled ultra low vibration silicon mirrors for gravitational wave observatories [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper abstract bibtex 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.
@article{caltechauthors74993,
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.},
Author = {Brett Shapiro and Rana X. Adhikari and Odylio Aguiar and Edgard Bonilla and Danyang Fan and Litawn Gan and Ian Gomez and Sanditi Khandelwal and Brian Lantz and Tim MacDonald and Dakota Madden-Fong},
Journal = {Cryogenics},
Keywords = {Low vibration cryogenics; Gravitational waves; Feedback control},
Month = {January},
Note = {{\copyright} 2016 Elsevier Ltd. Received 29 October 2016, Revised 7 December 2016, Accepted 9 December 2016, Available online 18 December 2016.},
Pages = {83--92},
Publisher = {Elsevier},
Title = {Cryogenically cooled ultra low vibration silicon mirrors for gravitational wave observatories},
Url = {http://resolver.caltech.edu/CaltechAUTHORS:20170309-141043946},
Volume = {81},
Year = {2017},
Bdsk-Url-1 = {http://resolver.caltech.edu/CaltechAUTHORS:20170309-141043946}}
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