156 citations · 332 across the 7 of their papers we have counts for
7 papers
A complete fs-laser-ablation route to miniaturized single-crystal PMN-PT piezoelectric actuators
Menotti Markovic, Lucia Oberndorfer, Tobias M. Krieger +15
This article presents a novel fabrication route for miniaturized piezoelectric actuators that relies exclusively on processes based on femtosecond (fs) laser ablation. Previous wor…
Two-photon excitation with finite pulses unlocks pure dephasing-induced degradation of entangled photons emitted by quantum dots
Tim Seidelmann, Thomas K. Bracht, Barbara Ursula Lehner +7
Semiconductor quantum dots have emerged as an especially promising platform for the generation of polarization-entangled photon pairs. However, it was demonstrated recently that th…
Beyond the four-level model: Dark and hot states in quantum dots degrade photonic entanglement
Barbara Ursula Lehner, Tim Seidelmann, Gabriel Undeutsch +9
Entangled photon pairs are essential for a multitude of photonic quantum applications. To date, the best performing solid-state quantum emitters of entangled photons are semiconduc…
Surface passivation and oxide encapsulation to improve optical properties of a single GaAs quantum dot close to the surface
Santanu Manna, Huiying Huang, Saimon Filipe Covre da Silva +6
Epitaxial GaAs quantum dots grown by droplet etching have recently shown excellent properties as sources of single photons as well as entangled photon pairs. Integration in some na…
GaAs quantum dots grown by droplet etching epitaxy as quantum light sources
Saimon Filipe Covre da Silva, Gabriel Undeutsch, Barbara Lehner +6
This paper presents an overview and perspectives on the epitaxial growth and optical properties of GaAs quantum dots obtained with the droplet etching method as high-quality source…
Quantum cryptography with highly entangled photons from semiconductor quantum dots
Christian Schimpf, Marcus Reindl, Daniel Huber +6
State-of-the-art quantum key distribution systems are based on the BB84 protocol and single photons generated by lasers. These implementations suffer from range limitations and sec…
Single-Particle-Picture Breakdown in laterally weakly confining GaAs Quantum Dots
Daniel Huber, Barbara Ursula Lehner, Diana Csontosová +5
We present a detailed investigation of different excitonic states weakly confined in single GaAs/AlGaAs quantum dots obtained by the Al droplet-etching method. For our analysis we…