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Interferometers for Displacement-Noise-Free Gravitational-Wave Detection

Chen, Yanbei and Pai, Archana and Somiya, Kentaro and Kawamura, Seiji and Sato, Shuichi and Kokeyama, Keiko and Ward, Robert L. and Goda, Keisuke and Mikhalov, Eugeniy E. (2006) Interferometers for Displacement-Noise-Free Gravitational-Wave Detection. Physical Review Letters, 97 (15). Art. No. 151103. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:CHEprl06a

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Abstract

We propose a class of displacement- and laser-noise-free gravitational-wave-interferometer configurations, which does not sense nongeodesic mirror motion and laser noise, but provides a nonvanishing gravitational-wave signal. Our interferometers consist of four mirrors and two beam splitters, which form four Mach-Zehnder interferometers. By contrast to previous works, no composite mirrors with multiple reflective surfaces are required. Each mirror in our configuration is sensed redundantly, by at least two pairs of incident and reflected beams. Displacement- and laser-noise-free detection is achieved when output signals from these four interferometers are combined appropriately. Our 3-dimensional interferometer configuration has a low-frequency response proportional to f2, which is better than the f3 achievable by previous 2-dimensional configurations.


Item Type:Article
Additional Information:©2006 The American Physical Society (Received 25 May 2006; published 13 October 2006) We thank Curt Cutler for bringing Octahedron to our attention. The research of Y.C., A.P. and K.S. is supported by Alexander von Humboldt Foundation’s Sofja Kovalevskaja Programme (funded by the German Federal Ministry of Education and Research). R.L.W., K.G., and E.E.M. are supported by the U.S. National Science Foundation (NSF) under Cooperative Agreement No. PHY-0107417. K.G. and E.E.M. are also supported by NSF Grant No. PHY-0457264.
Record Number:CaltechAUTHORS:CHEprl06a
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:CHEprl06a
Alternative URL:http://dx.doi.org/10.1103/PhysRevLett.97.151103
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5822
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:03 Nov 2006
Last Modified:18 Sep 2014 18:11

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