3 citations · 7 across the 8 of their papers we have counts for
8 papers
Fabrication-Aware Design of a Hybrid Metasurface-Bragg Mirror for Low-Noise Precision Optics
Mika Gaedtke, Christian Kranhold, Markus Walther +3
High-reflectivity coatings for precision interferometry must simultaneously minimize optical losses and thermally driven displacement noise. Dielectric Bragg mirrors provide robust…
High-Beam-Quality Meta-Grating Couplers for Large Collimated Free-Space Beams on Silicon-on-Insulator
Max Schittenhelm, Sebastian Häfner, Steffen Sauer +1
Photonic integrated circuits on the silicon-on-insulator (SOI) platform typically interface with free space via grating couplers, but scaling these to collimated beams with diamete…
Beyond Bragg-Mirrors for Gravitational Wave Telescopes: A Fabrication Tolerant Hybrid Metasurface-Bragg Mirror Design
Christian Kranhold, Mika Gaedtke, Markus Walther +3
Coating thermal noise in high-reflectivity test-mass mirrors is a major limitation for future gravitational-wave detectors, especially in the 10--300 Hz band. ET-Pathfinder therefo…
Cordierite-based optical resonators with extremely low thermal expansion
Nico Wagner, Thomas Legero, Stefanie Kroker
Applications for ultra-stable lasers outside controlled laboratory environments require compact and robust optical resonators with reduced sensitivity to temperature fluctuations.…
Benchmarking Dual-Polarization Silicon Nitride Photonic Integrated Circuits for Trapped-Ion Quantum Technologies
Carl-Frederik Grimpe, Anastasiia Lüßmann-Sorokina, Guochun Du +10
Trapped ions are one of the most advanced platforms for quantum technologies, with applications ranging from quantum computing to precision timekeeping. A crucial step towards more…
Guidelines for designs for ultrastable laser with fractional frequency instability
Joannès Barbarat, Erik Benkler, Marcin Bober +46
Lasers with long coherence time and narrow linewidth are an essential tool for quantum sensors and clocks. Ultrastable cavities and laser systems are now commercially available wit…
Temperature-dependent mechanical losses of Eu:YSiO for spectral hole burning laser stabilization
Nico Wagner, Johannes Dickmann, Bess Fang +2
We investigate the mechanical loss characteristics of Eu:YSiO$\unicode{x2013}$a promising candidate for ultra-low-noise frequency stabilization through the spectral…
Mechanical loss and stability analysis of NEXCERA in ultra-stable optical cavities
Nico Wagner, Mateusz Narożnik, Marcin Bober +3
NEXCERA has emerged as a ceramic-based material for spacers in ultra-stable optical cavities, with a coefficient of thermal expansion that crosses zero near room temperature. In su…