Zobrazeno 1 - 10
of 156
pro vyhledávání: '"Kroker Stefanie"'
We investigate the mechanical loss characteristics of Eu$^{3+}$:Y$_2$SiO$_5$$\unicode{x2013}$a promising candidate for ultra-low-noise frequency stabilization through the spectral hole burning technique. Three different mechanical oscillators with va
Externí odkaz:
http://arxiv.org/abs/2409.14126
Autor:
Wagner, Nico, Narożnik, Mateusz, Bober, Marcin, Sauer, Steffen, Zawada, Michał, Kroker, Stefanie
NEXCERA has been recently introduced as novel ceramic-based material for spacers of ultra-stable laser cavities with a zero-crossing coefficient of thermal expansion at room temperature. Brownian thermal noise currently limits the performance of thes
Externí odkaz:
http://arxiv.org/abs/2409.14120
We demonstrate for the first time the two-color cooling and trapping of alkaline-earth atoms in a grating magneto-optical trap (gMOT). The trap is formed by a single incident laser beam together with four secondary beams that are generated via diffra
Externí odkaz:
http://arxiv.org/abs/2112.08833
Autor:
Ulbricht, Sebastian, Dickmann, Johannes, Müller, Robert A., Kroker, Stefanie, Surzhykov, Andrey
Publikováno v:
Phys. Rev. D 104, 062002 (2021)
We theoretically investigate the influence of gravity on laser light in a hemispherical optical cavity, operating on Earth. The propagation of light in such a cavity is modeled by a Gaussian beam, affected by the Earth's gravitational field. On labor
Externí odkaz:
http://arxiv.org/abs/2010.09352
Autor:
Ulbricht, Sebastian, Dickmann, Johannes, Müller, Robert A., Kroker, Stefanie, Surzhykov, Andrey
Publikováno v:
Phys. Rev. D 101, 121501 (2020)
As known from Einstein's theory of general relativity, the propagation of light in the presence of a massive object is affected by gravity. In this work, we discuss whether the effect of gravitational light bending can be observed in Earth-based expe
Externí odkaz:
http://arxiv.org/abs/2002.02170
Akademický článek
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Autor:
Tuniz, Alessandro, Bickerton, Oliver, Diaz, Fernando J., Käsebier, Thomas, Kley, Ernst-Bernhard, Kroker, Stefanie, Palomba, Stefano, de Sterke, C. Martijn
Publikováno v:
Nat. Commun. 11, 2413 (2020)
We introduce a modular approach for efficiently interfacing photonic integrated circuits with deep-sub-wavelength hybrid plasmonic functionality. We demonstrate that an off-the-shelf silicon-on-insulator waveguide can be post-processed into an integr
Externí odkaz:
http://arxiv.org/abs/1908.11552
We report on key signal contributions in photothermal deflection spectroscopy (PDS) of semiconductors at photon energies below the bandgap energy and show how to extract the actual absorption properties from the measurement data. To this end, we esta
Externí odkaz:
http://arxiv.org/abs/1905.06135
Autor:
Wagner, Nico1,2 (AUTHOR) nico.wagner@tu-braunschweig.de, Kroker, Stefanie1,2,3 (AUTHOR)
Publikováno v:
EPJ Web of Conferences. 10/31/2024, Vol. 309, p1-2. 2p.
Publikováno v:
Journal of the European Optical Society-Rapid Publications, Vol 20, Iss 1, p 3 (2024)
In this work, we introduce a new bispectral optical cavity concept for which we design twin pairs of highly reflective, ultra-low noise metamirrors. Metasurfaces, artificial structures composed of periodic or quasi-periodic arrays of nanostructures,
Externí odkaz:
https://doaj.org/article/cba6d714846f44f889612e0cea821f97