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Realization of a monolithic high-reflectivity cavity mirror from a single silicon crystal

MPG-Autoren
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Friedrich,  Daniel
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Britzger,  Michael
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Burmeister,  Oliver
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Danzmann,  Karsten
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Schnabel,  Roman
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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1004.2641
(Preprint), 2MB

PRL163903.pdf
(beliebiger Volltext), 380KB

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Zitation

Brückner, F., Friedrich, D., Clausnitzer, T., Britzger, M., Burmeister, O., Danzmann, K., et al. (2010). Realization of a monolithic high-reflectivity cavity mirror from a single silicon crystal. Pysical Review Letters, 104(16): 163903. doi:10.1103/PhysRevLett.104.163903.


Zitierlink: https://hdl.handle.net/11858/00-001M-0000-0012-B8F1-8
Zusammenfassung
We report on the first experimental realization of a high-reflectivity cavity mirror that solely consists of a single silicon crystal. Since no material was added to the crystal, the urgent problem of 'coating thermal noise' that currently limits classical as well as quantum measurements is avoided. Our mirror is based on a surface nanostructure that creates a resonant surface waveguide. In full agreement with a rigorous model we realized a reflectivity of (99.79+/-0.01)% at a wavelength of 1.55 {\mu}m, and achieved a cavity finesse of 2784. We anticipate that our achievement will open the avenue to next generation high-precision experiments targeting fundamental questions of physics.