125 citations · 405 across the 11 of their papers we have counts for
11 papers
Nanosecond gating of superconducting nanowire single-photon detectors using cryogenic bias circuitry
Thomas Hummel, Alex Widhalm, Jan Philipp HÖpker +7
Superconducting nanowire single-photon detectors (SNSPDs) show near unity efficiency, low dark count rate, and short recovery time. Combining these characteristics with temporal co…
Optoelectronic sampling of ultrafast electric transients with single quantum dots
Alex Widhalm, Sebastian Krehs, Dustin Siebert +7
In our work, we have engineered low capacitance single quantum dot photodiodes as sensor devices for the optoelectronic sampling of ultrafast electric signals. By the Stark effect,…
Nonlinear down-conversion in a single quantum dot
B. Jonas, D. Heinze, E. Schöll +8
Photonic quantum technologies, with applications in quantum communication, sensing as well as quantum simulation and computing, are on the verge of becoming commercially availa…
Pulse shaping for on-demand emission of single Raman photons from a quantum-dot biexciton
Tom Praschan, Dirk Heinze, Dominik Breddermann +3
Semiconductor quantum dots embedded in optical cavities are promising on-demand sources of single photons. Here, we theoretically study single photon emission from an optically dri…
Evidence of nonlinear diffusion in KTP waveguides
Laura Padberg, Matteo Santandrea, Michael Rüsing +6
Integrated devices are a widespread tool for the generation and manipulation of light fields, since they exhibit high efficiency, small footprint and the ability to inter…
Polarization-entangled twin photons from two-photon quantum-dot emission
Dirk Heinze, Artur Zrenner, Stefan Schumacher
Semiconductor quantum dots are promising sources for polarization-entangled photons. As an alternative to the usual cascaded biexciton-exciton emission, direct two-photon emission…