A
Alexander R. Korsch
Researcher at Ruhr University Bochum
Publications - 12
Citations - 253
Alexander R. Korsch is an academic researcher from Ruhr University Bochum. The author has contributed to research in topics: Quantum dot & Semiconductor. The author has an hindex of 5, co-authored 12 publications receiving 93 citations. Previous affiliations of Alexander R. Korsch include University of Basel.
Papers
More filters
Journal ArticleDOI
A bright and fast source of coherent single photons
Natasha Tomm,Alisa Javadi,Nadia O. Antoniadis,Daniel Najer,Matthias C. Löbl,Alexander R. Korsch,Rüdiger Schott,Sascha R. Valentin,Andreas D. Wieck,Arne Ludwig,Richard J. Warburton +10 more
TL;DR: A gated quantum dot in an open, tunable microcavity now can create single photons on-demand with an end-to-end efficiency of 57%, preserving coherence over microsecond-long trains of single photons.
Journal ArticleDOI
A bright and fast source of coherent single photons
Natasha Tomm,Alisa Javadi,Nadia O. Antoniadis,Daniel Najer,Matthias C. Löbl,Alexander R. Korsch,Alexander R. Korsch,Rüdiger Schott,Sascha R. Valentin,Andreas D. Wieck,Arne Ludwig,Richard J. Warburton +11 more
TL;DR: In this article, a gated quantum dot in an open, tunable microcavity was used to create a single photon at the output of the final optical fibre with a probability of up to 57% and with an average two-photon interference visibility of 97.5%.
Journal ArticleDOI
Single-electron charge sensing in self-assembled quantum dots
Haruki Kiyama,Alexander R. Korsch,Naomi Nagai,Yasushi Kanai,Kazuhiko Matsumoto,Kazuhiko Hirakawa,Akira Oiwa +6 more
TL;DR: This paper reports charge sensing experiments in self-assembled quantum dots, which choose two adjacent dots, and fabricate source and drain electrodes on each dot, in which either dot works as a charge sensor for the other target dot, demonstrating single-electron charge sensing.
Journal ArticleDOI
Suppression of Surface-Related Loss in a Gated Semiconductor Microcavity
Daniel Najer,Natasha Tomm,Alisa Javadi,Alexander R. Korsch,Benjamin Petrak,Daniel Riedel,Vincent Dolique,Sascha R. Valentin,Rüdiger Schott,Andreas D. Wieck,Arne Ludwig,Richard J. Warburton +11 more
TL;DR: In this paper, a surface passivation method was proposed to reduce surface-related losses by almost 2 orders of magnitude in a highly miniaturized nano-cavity with a curved dielectric distributed Bragg reflector.
Journal ArticleDOI
Single-electron charge sensing in self-assembled quantum dots
Haruki Kiyama,Alexander R. Korsch,Naomi Nagai,Yasushi Kanai,Kazuhiko Matsumoto,Kazuhiko Hirakawa,Akira Oiwa +6 more
TL;DR: In this article, the authors reported charge sensing experiments in self-assembled quantum dots, where they choose two adjacent dots, and fabricate source and drain electrodes on each dot, in which either dot works as a charge sensor for the other target dot.