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  Coating-free mirrors for high precision interferometric experiments

Goßler, S., Cumpston, J., McKenzie, K., Mow-Lowry, C. M., Gray, M. B., & McClelland, D. E. (2007). Coating-free mirrors for high precision interferometric experiments. Physical Review. A, 76: 053810. doi:10.1103/PhysRevA.76.053810.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0012-BCEE-3 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0012-BCEF-1
Genre: Journal Article

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 Creators:
Goßler, Stefan1, Author           
Cumpston, Jeff, Author
McKenzie, Kirk, Author
Mow-Lowry, Conor M., Author
Gray, Malcolm B., Author
McClelland, David E., Author
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1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              

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 Abstract: Thermal noise in mirror optical coatings may not only limit the sensitivity of future gravitational-wave detectors in their most sensitive frequency band but is also a major impediment for experiments that aim to reach the standard quantum limit or cool mechanical systems to their quantum ground state. We present the design and experimental characterization of a highly reflecting mirror without any optical coating. This coating-free mirror is based on total internal reflection and Brewster-angle coupling. In order to characterize its performance, the coating-free mirror was incorporated into a triangular ring cavity together with a high quality conventional mirror. The finesse of this cavity was measured using an amplitude transfer function to be about F≃4000. This finesse corresponds to a reflectivity of the coating-free mirror of about R≃99.89%. In addition, the dependence of the reflectivity on rotation was mapped out.

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 Dates: 2007
 Publication Status: Issued
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 Identifiers: DOI: 10.1103/PhysRevA.76.053810
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Title: Physical Review. A
  Alternative Title : Phys. Rev. A
Source Genre: Journal
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Publ. Info: New York, NY : Published by the American Physical Society through the American Institute of Physics
Pages: - Volume / Issue: 76 Sequence Number: 053810 Start / End Page: - Identifier: Other: 954925225012
Other: 1050-2947