Results 11 to 20 of about 177,744 (299)
Competition between Kondo screening and quantum Hall edge reconstruction [PDF]
, 2015 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 dot.
Haug, R. J. +3 more
core +3 more sources
Linewidth narrowing in self-injection-locked on-chip lasers
Light: Science & Applications, 2023 Stable laser emission with narrow linewidth is of critical importance in many applications, including coherent communications, LIDAR, and remote sensing.
Emad Alkhazraji +4 more
doaj +1 more source
Size-dependent fine-structure splitting in self-organized InAs/GaAs quantum dots [PDF]
, 2005 A systematic variation of the exciton fine-structure splitting with quantum dot size in single InAs/GaAs quantum dots grown by metal-organic chemical vapor deposition is observed.
A. Schliwa +6 more
core +1 more source
Theory of Charge Sensing in Quantum-Dot Structures [PDF]
Physical Review Letters, 2005 Charge sensing in quantum-dot structures is studied by an exactly solvable reduced model and numerical density-matrix renormalization group methods. Charge sensing is characterized by the repeated cycling of the occupation of current-carrying states due to the capacitive coupling to trap states which are weakly coupled to the leads.
Berkovits, Richard +2 more
openaire +3 more sources
Condensed Matter Physics, 2020 The structural and electronic properties of the metallic hcp phase of Zn in the bulk, monolayer, bilayer, and quantum dot limits have been studied by using total energy calculations. From our calculated density of states and electronic band structure, in
D. Olguín
doaj +1 more source
High-resolution spectroscopy of a quantum dot driven bichromatically by two strong coherent fields
Physical Review Research, 2021 We present spectroscopic experiments and theory of a quantum dot driven bichromatically by two strong coherent lasers. In particular, we explore the regime where the drive strengths are substantial enough to merit a general nonperturbative analysis ...
Chris Gustin +7 more
doaj +1 more source
Enhanced current injection from a quantum well to a quantum dash in magnetic field
New Journal of Physics, 2014 Resonant tunneling injection is a key ingredient in achieving population inversion in a putative quantum dot cascade laser. In a quantum dot based structure, such resonant current requires a matching of the wavefunction shape in k -space between the ...
Gian L Paravicini-Bagliani +5 more
doaj +1 more source
Impact of Local Composition on the Emission Spectra of InGaN Quantum-Dot LEDs
Nanomaterials, 2023 A possible solution for the realization of high-efficiency visible light-emitting diodes (LEDs) exploits InGaN-quantum-dot-based active regions. However, the role of local composition fluctuations inside the quantum dots and their effect of the device ...
Daniele Barettin +7 more
doaj +1 more source
Sb2S3 Quantum-Dot Sensitized Solar Cells with Silicon Nanowire Photoelectrode
International Journal of Photoenergy, 2015 We propose a novel quantum-dot sensitized solar cell (QDSSC) structure that employs a quantum dot/semiconductor silicon (QD/Si) coaxial nanorod array to replace the conventional dye/TiO2/TCO photoelectrode.
You-Da Hsieh, Ming-Way Lee, Gou-Jen Wang
doaj +1 more source
Peculiarities of quasicrystalline films formation processes on crystal surface under irradiation with proton-ion flows [PDF]
MATEC Web of Conferences, 2021 Quasicrystalline film with densest package of atoms can be formed on a crystal surface under irradiating crystal surface with protonion flows at a certain ratio of atoms diameters of irradiated crystal and the ions of irradiating flow.
Melnikov Gennady +4 more
doaj +1 more source