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Investigating atomic-scale solid-state properties with an SnV electrometer in diamond
/forschung/publikationen/investigating-atomic-scale-solid-state-properties-with-an-snv-electrometer-in-diamond
We present an electrometer based on an optically-active spin defect in diamond with a non-linear Stark response. Using this sensor, we successfully localize charge traps, quantify their impact on…
Coherent excitation of a tin-vacancy color center with the SUPER scheme
/forschung/publikationen/coherent-excitation-of-a-tin-vacancy-color-center-with-the-super-scheme
We apply the novel coherent excitation scheme SUPER for the first time to a diamond color center using pulses detuned from the transition. This approach perspectively enables spectral filtering of…
Miniaturized Laser Distribution Module for Compact Sr-Based Optical Atomic Clocks
/forschung/publikationen/miniaturized-laser-distribution-module-for-compact-sr-based-optical-atomic-clocks
We present the layout of a miniaturized laser distribution module as part of a 88Sr optical lattice clock. It consists of distributed Bragg reflector lasers (679 and 707 nm) combined with…
On scalability of static 940 nm VCSEL arrays
/forschung/publikationen/on-scalability-of-static-940-nm-vcsel-arrays
Static light-current-voltage (LIV) curves, spectrum, and far-field o f oxideconfined 7, 19, 100, and 312 vertical-cavity surface-emitting laser (VCSEL) arrays centered at 940 nm were collected…
Tailor Bragg grating designs for specific laser applications via coupled-mode-theory fit and machine learning
/forschung/publikationen/tailor-bragg-grating-designs-for-specific-laser-applications-via-coupled-mode-theory-fit-and-machine-learning
Here we introduce efficient machine learning models trained on a 3D FDTD simulation-based database to predict Bragg grating characteristics from the main and the side lobes of reflectance spectra…
Coupled Mode Theory Fitting of Bragg Grating Spectra Obtained with 3D FDTD Method
/forschung/publikationen/coupled-mode-theory-fitting-of-bragg-grating-spectra-obtained-with-3d-fdtd-method
This study focuses on accurately fit of the main and side lobes of reflectance obtained through precise 3D FDTD simulations using coupled-mode-theory. This approach based on surrogate modeling…
AlGaN on AlN/Sapphire: A New Material Platform in Integrated Photonics Technology
/forschung/publikationen/algan-on-alnsapphire-a-new-material-platform-in-integrated-photonics-technology
AlGaN on AlN/Sapphire stands out in photonics for its strong nonlinearity, electro-optic modulability, and low loss in the visible spectrum. We fabricate and characterize AlGaN photonic devices,…
Neue Bildungsoffensive für die deutsche Chipindustrie
/media-center/presseinformationen/neue-bildungsoffensive-fuer-die-deutsche-chipindustrie
Fachkräfte für die Chipindustrie sichern – mit diesem Ziel startet am 01.11.2024 das vom Bundesministerium für Bildung und Forschung (BMBF) geförderte bundesweite Leitprojekt „Fachkräfte für die…
Mapping the energy-momentum dispersion of hBN excitons and hybrid plasmons in hBN-WSe2 heterostructures
/forschung/publikationen/mapping-the-energy-momentum-dispersion-of-hbn-excitons-and-hybrid-plasmons-in-hbn-wse2-heterostructures
Heterostructures obtained by combining two-dimensional (2D) sheets are widely investigated as a platform for designing new materials with customised characteristics. Transition metal dichalcogenides…
IEEE Photonics Conference 2024
/termine/ieee-photonics-conference-2024
Das FBH präsentiert im Rahmen mehrerer Vorträge neueste Forschungsergebnisse auf der IEEE Photonics Conference (IPC).