Ralph-Stephan Unger

Optically Coherent Nitrogen-Vacancy Defect Centers in Diamond Nanostructures

Laura Orphal‐Kobin, Kilian Unterguggenberger, Tommaso Pregnolato et al. · Physical Review X · 2023 · 44 citations · Full text

DFB Laser Diodes Based on GaN Using 10th Order Laterally Coupled Surface Gratings

Ji Hye Kang, H. Wenzel, Veit Hoffmann et al. · IEEE Photonics Technology Letters · 2017 · 37 citations

Short Wavelength Optic, Optical Materials, Engineering +17

SnO/β-Ga2O3 heterojunction field-effect transistors and vertical p–n diodes

Kornelius Tetzner, Kingsley Egbo, Michael Klupsch et al. · Applied Physics Letters · 2022 · 33 citations · Full text

Semiconductors, Semiconductor Technology, Electrical Engineering +12

Vertical and Smooth Single-Step Reactive Ion Etching Process for InP Membrane Waveguides

Yuqing Jiao, T. de Vries, Ralph-Stephan Unger et al. · Journal of The Electrochemical Society · 2015 · 32 citations · Full text

Rie Process Results, Engineering, Microfabrication +9

Enhancement-mode vertical (100) β-Ga₂O₃ FinFETs with an average breakdown strength of 2.7 MV cm⁻¹

Kornelius Tetzner, Michael Klupsch, Andreas Popp et al. · Japanese Journal of Applied Physics · 2023 · 30 citations · Full text

Semiconductor Technology, Electrical Engineering, Semiconductor Device +12