Auflistung Fakultät für Mathematik und Physik nach Schlagwort "Nanocrystals"

Auflistung Fakultät für Mathematik und Physik nach Schlagwort "Nanocrystals"

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  • Absorption and multi-phonon quenching in nanocrystal doped SiO2 fibers 
    Steinke, Michael; Spelthann, Simon; Rühl, Axel; Ristau, Detlev (Washington, DC : Optica, 2021)
    SiO2 fibers doped with rare-earth-doped nanocrystals are promising to overcome the strong SiO2 multi-phonon quenching and could yield novel laser gain materials. So far, no attention has been paid to the question how well ...
  • Competition between Kondo Screening and Quantum Hall Edge Reconstruction 
    Heine, A.W.; Tutuc, D.; Zwicknagl, G.; Haug, Rolf J. (College Park, MD : American Physical Society, 2016)
    We report on a Kondo correlated quantum dot connected to two-dimensional leads where we demonstrate the renormalization of the g factor in the pure Zeeman case. i.e., for magnetic fields parallel to the plane of the quantum ...
  • High efficiency grating couplers for strain tunable GaAs quantum dot based entangled photon sources 
    Schmidt, Constantin; Ma, Chenxi; Benthin, Frederik; Yang, Jingzhong; Rugeramigabo, Eddy P.; Zopf, Michael; Ding, Fei (New York, NY : American Inst. of Physics, 2024)
    The on-chip integration of single photon and entangled photon emitters such as epitaxially grown semiconductor quantum dots into photonic frameworks is a rapidly evolving research field. GaAs quantum dots offer high purity ...
  • Single photon emission from ODT passivated near-surface GaAs quantum dots 
    Cao, Xin; Yang, Jingzhong; Li, Pengji; Zhang, Yiteng; Rugeramigabo, Eddy P.; Brechtken, Benedikt; Haug, Rolf J.; Zopf, Michael; Ding, Fei (Melville, NY : American Inst. of Physics, 2021)
    Epitaxially grown semiconductor quantum dots are promising candidates for pure single photon and polarization-entangled photon pair emission. Excellent optical properties can typically be ensured only if these so-called ...
  • Spectroscopy and excitation dynamicis of LiYF4:Pr3+ nanocrystals 
    Spelthann, Simon (Hannover : Institutionelles Repositorium der Gottfried Wilhelm Leibniz Unviersität Hannover, 2023)
    Downsizing lanthanide-doped crystals to the nanoscale allows for new applications in a variety of forms as photonic composites. The dipole-forbidden 4f transitions in trivalent lanthanide ions promise high excited state ...
  • Temperature-dependent broadening of coherent current peaks in InAs double quantum dots 
    Dani, Olfa; Hussein, Robert; Bayer, Johannes C.; Kohler, Sigmund; Haug, Rolf J. (London : Springer Nature, 2022)
    Quantum systems as used for quantum computation or quantum sensing are nowadays often realized in solid state devices as e.g. complex Josephson circuits or coupled quantum-dot systems. Condensed matter as an environment ...
  • Upconversion nanocrystal doped polymer fiber thermometer 
    Thiem, Jonas; Spelthann, Simon; Neumann, Laurie; Jakobs, Florian; Johannes, Hans-Hermann; Kowalsky, Wolfgang; Kracht, Dietmar; Neumann, Joerg; Ruehl, Axel; Ristau, Detlev (Basel : MDPI AG, 2020)
    In recent years, lanthanide-doped nanothermometers have been mainly used in thin films or dispersed in organic solvents. However, both approaches have disadvantages such as the short interaction lengths of the active ...

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