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Birefringence Measurements on Crystalline Silicon
Christoph Krüger, Daniel Heinert, Alexander Khalaidovski +4
Crystalline silicon has been proposed as a new test mass material in third generation gravitational wave detectors such as the Einstein Telescope (ET). Birefringence can reduce the…
Optical Absorption Measurement at 1550 nm on a Highly-Reflective Si/SiO Coating Stack
Jessica Steinlechner, Alexander Khalaidovski, Roman Schnabel
Future laser-interferometric gravitational wave detectors (GWDs) will potentially employ test mass mirrors from crystalline silicon and a laser wavelength of , which…
Indication for dominating surface absorption in crystalline silicon test masses at 1550nm
Alexander Khalaidovski, Jessica Steinlechner, Roman Schnabel
The sensitivity of future gravitational wave (GW) observatories will be limited by thermal noise in a wide frequency band. To reduce thermal noise, the European GW observatory Eins…
Optical Absorption Measurements on Crystalline Silicon at 1550nm
Jessica Steinlechner, Christoph Krüger, Nico Lastzka +3
Crystalline silicon is currently being discussed as test-mass material for future generations of gravitational wave detectors that will operate at cryogenic temperatures. We presen…
Michelson interferometer with diffractively-coupled arm resonators in second-order Littrow configuration
Michael Britzger, Maximilian H. Wimmer, Alexander Khalaidovski +7
Michelson-type laser-interferometric gravitational-wave (GW) observatories employ very high light powers as well as transmissively- coupled Fabry-Perot arm resonators in order to r…