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Conference Paper

Low-loss gratings for next-generation gravitational wave detectors

MPS-Authors

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

Burmeister,  Oliver
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;
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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249178.pdf
(Publisher version), 975KB

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Citation

Clausnitzer, T., Kley, E.-B., Tünnermann, A., Bunkowski, A., Burmeister, O., Danzmann, K., et al. (2005). Low-loss gratings for next-generation gravitational wave detectors. In M. L.. Fulton (Ed.), Advances in thin-film coatings for optical applications II (pp. 153-160). Bellingham, Wash.: SPIE, the International Society for Optical Engineering.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-4F93-9
Abstract
By combining electron beam lithography with coating processes, very shallow gratings with diffraction efficiencies between 0.02% and 7% have been realized. Advantages and disadvantages of different layout concepts for such gratings, their fabrication regime and measurements of their scattering will be discussed. The application of such gratings as coupling components to a reflective Fabry-Perot cavity resulted in a finesse of more than 400.