A photonic integrated circuit–based erbium-doped amplifier Y Liu, Z Qiu, X Ji, A Lukashchuk, J He, J Riemensberger, M Hafermann, ... Science 376 (6599), 1309-1313, 2022 | 148 | 2022 |
Revealing the origin of the beneficial effect of cesium in highly efficient Cu (In, Ga) Se2 solar cells P Schöppe, S Schönherr, M Chugh, H Mirhosseini, P Jackson, R Wuerz, ... Nano Energy 71, 104622, 2020 | 28 | 2020 |
Flat Optical and Plasmonic Devices Using Area‐Selective Ion‐Beam Doping of Silicon J Salman, M Hafermann, J Rensberg, C Wan, R Wambold, BS Gundlach, ... Advanced Optical Materials 6 (5), 1701027, 2018 | 19 | 2018 |
Metasurfaces enabled by locally tailoring disorder in phase-change materials M Hafermann, P Schöppe, J Rensberg, C Ronning ACS Photonics 5 (12), 5103-5109, 2018 | 15 | 2018 |
Insight into the unit cell: Structure of picene thin films on Ag (100) revealed with complementary methods T Huempfner, M Hafermann, C Udhardt, F Otto, R Forker, T Fritz The Journal of Chemical Physics 145 (17), 2016 | 13 | 2016 |
Tuning carrier density and phase transitions in oxide semiconductors using focused ion beams H Mei, A Koch, C Wan, J Rensberg, Z Zhang, J Salman, M Hafermann, ... Nanophotonics 11 (17), 3923-3932, 2022 | 12 | 2022 |
Grayscale nanopatterning of phase-change materials for subwavelength-scaled, inherently planar, nonvolatile, and reconfigurable optical devices M Hafermann, M Zapf, M Ritzer, A Printschler, Y Luo, A Ambrosio, ... ACS Applied Nano Materials 3 (5), 4486-4493, 2020 | 9 | 2020 |
Spatially resolved dynamics of cobalt color centers in ZnO nanowires CT Plass, V Bonino, M Ritzer, LR Jäger, V Rey‐Bakaikoa, M Hafermann, ... Advanced Science 10 (1), 2205304, 2023 | 8 | 2023 |
In-Operando Nanoscale X-ray Analysis Revealing the Local Electrical Properties of Rubidium-Enriched Grain Boundaries in Cu(In,Ga)Se2 Solar Cells CT Plass, M Ritzer, P Schöppe, S Schönherr, M Zapf, M Hafermann, ... ACS Applied Materials & Interfaces 12 (51), 57117-57123, 2020 | 8 | 2020 |
Hot electrons in a nanowire hard X-ray detector M Zapf, M Ritzer, L Liborius, A Johannes, M Hafermann, S Schönherr, ... Nature communications 11 (1), 4729, 2020 | 7 | 2020 |
Fast recovery of ion-irradiation-induced defects in Ge2Sb2Te5 thin films at room temperature M Hafermann, R Schock, C Wan, J Rensberg, MA Kats, C Ronning Optical Materials Express 11 (10), 3535-3545, 2021 | 3 | 2021 |
Heavily doped zinc oxide with plasma frequencies in the telecommunication wavelength range A Koch, H Mei, J Rensberg, M Hafermann, J Salman, C Wan, R Wambold, ... Advanced Photonics Research 4 (2), 2200181, 2023 | 1 | 2023 |
A Photonic Integrated Circuit-Based Erbium-doped Waveguide Amplifier Y Liu, Z Qiu, X Ji, A Lukashchuk, J He, J Riemensberger, M Hafermann, ... European Conference and Exhibition on Optical Communication, We2E. 2, 2022 | 1 | 2022 |
Embedded Optics: Flat Optical and Plasmonic Devices Using Area‐Selective Ion‐Beam Doping of Silicon (Advanced Optical Materials 5/2018) J Salman, M Hafermann, J Rensberg, C Wan, R Wambold, BS Gundlach, ... Advanced Optical Materials 6 (5), 1870019, 2018 | 1 | 2018 |
Hybrid integrated multi-lane erbium-doped Si3N4 waveguide amplifiers Z Qiu, X Ji, Y Liu, M Hafermann, T Kim, JC Olson, WR Ning, C Ronning, ... Optical Fiber Communication Conference, M4A. 5, 2024 | | 2024 |
Time-resolved x-ray excited optical luminescence spectroscopy: nano-probe investigations of perovskite nanowires CT Plass, V Bonino, MP Ayala, Z Zhang, N Lamers, L Jäger, VR Bakaikoa, ... Ultrafast Phenomena and Nanophotonics XXVIII, PC1288404, 2024 | | 2024 |
Early oxidation stages of austenitic stainless steel monitored using Mn as tracer R Wonneberger, G Kirste, M Seyring, M Hafermann, C Ronning, M Schaal, ... Corrosion Science 223, 111434, 2023 | | 2023 |
Tunable Threshold in VO2-based Photonic Devices Enabled by Defect Engineering C Wan, M Hafermann, TJ Park, Z Zhang, Y Xiao, H Mei, S Ramanathan, ... CLEO: QELS_Fundamental Science, JTh6B. 5, 2022 | | 2022 |
Reconfigurable photonics using the tunable phase-transition temperature of defect-engineered vanadium dioxide C Wan, M Hafermann, TJ Park, Z Zhang, Y Xiao, H Mei, S Ramanathan, ... Photonic and Phononic Properties of Engineered Nanostructures XII, PC120100A, 2022 | | 2022 |
Engineering Optical Materials Using Focused Ion Beams H Mei, A Koch, C Wan, J Salman, J Rensberg, Z Zhang, M Hafermann, ... Novel Optical Materials and Applications, NoTu2D. 3, 2021 | | 2021 |