Optical characterization of ultrahigh diffraction efficiency gratings

Bunkowski, Alexander; Burmeister, Oliver; Clausnitzer, Tina; Kley, E. B.; Tünnermann, Andreas; Danzmann, Karsten; Schnabel, Roman

doi:10.1364/AO.45.005795

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学術論文

Optical characterization of ultrahigh diffraction efficiency gratings

MPS-Authors

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

Burmeister, Oliver
AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;
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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引用

Bunkowski, A., Burmeister, O., Clausnitzer, T., Kley, E. B., Tünnermann, A., Danzmann, K., & Schnabel, R. (2006). Optical characterization of ultrahigh diffraction efficiency gratings. Applied Optics, 45(23), 5795-5799. doi:10.1364/AO.45.005795.

引用: https://hdl.handle.net/11858/00-001M-0000-0013-4D38-7

要旨

We report on the optical characterization of an ultrahigh diffraction efficiency grating in a first-order Littrow configuration. The apparatus used was an optical cavity built from the grating under investigation and an additional high-reflection mirror. The measurement of the cavity finesse provided precise information about the grating's diffraction efficiency and its optical loss. We measured a finesse of 1580 from which we deduced a diffraction efficiency of (99.635±0.016)% and an overall optical loss due to scattering and absorption of just 0.185%. Such high-quality gratings, including the tool used for their characterization, might apply for future gravitational wave detectors. For example, the demonstrated cavity itself presents an all-reflective, low-loss Fabry-Perot resonator that might replace conventional arm cavities in advanced high-power Michelson interferometers.