Zobrazeno 1 - 10
of 110
pro vyhledávání: '"Andrei Schliwa"'
Autor:
Lucie Leguay, Abhiroop Chellu, Joonas Hilska, Esperanza Luna, Andrei Schliwa, Mircea Guina, Teemu Hakkarainen
Publikováno v:
Materials for Quantum Technology, Vol 4, Iss 1, p 015401 (2024)
Epitaxially-grown semiconductor quantum dots (QDs) provide an attractive platform for the development of deterministic sources of high-quality quantum states of light. Such non-classical light sources are essential for quantum information processing
Externí odkaz:
https://doaj.org/article/eb0687530f45492eb3dd6a1f656096b9
Publikováno v:
Light: Science & Applications, Vol 11, Iss 1, Pp 1-14 (2022)
Abstract Electronic properties of selected quantum dot (QD) systems are surveyed based on the multi-band k·p method, which we benchmark by direct comparison to the empirical tight-binding algorithm, and we also discuss the newly developed “linear
Externí odkaz:
https://doaj.org/article/b28dee2f517c415b935afd8f8106840e
Autor:
Dieter Bimberg, Erik Stock, Anatol Lochmann, Andrei Schliwa, Jan A. Tofflinger, Waldemar Unrau, Michael Munnix, Sven Rodt, Vladimir A. Haisler, Aleksandr I. Toropov, Askhat Bakarov, Aleksandr K. Kalagin
Publikováno v:
IEEE Photonics Journal, Vol 1, Iss 1, Pp 58-68 (2009)
The efficient generation of polarized single or entangled photons is a crucial requirement for the implementation of quantum key distribution (QKD) systems. Self-organized semiconductor quantum dots (QDs) are capable of emitting one polarized photon
Externí odkaz:
https://doaj.org/article/23edd45824714600b59bcd10eef10dae
Publikováno v:
Light, Science & Applications
Electronic properties of selected quantum dot (QD) systems are surveyed based on the multi-band k·p method, which we benchmark by direct comparison to the empirical tight-binding algorithm, and we also discuss the newly developed “linear combinati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::481a1b58b9ec2daf131b05e8629aaf32
https://pubmed.ncbi.nlm.nih.gov/35034962
https://pubmed.ncbi.nlm.nih.gov/35034962
Autor:
Stefan Kalinowski, Axel Hoffmann, Ludwig A. Th. Greif, Markus R. Wagner, Gordon Callsen, Sara Martí-Sánchez, Jan Müßener, Jörg Schörmann, Martin Eickhoff, Pascal Hille, Andrei Schliwa, Jordi Arbiol
Publikováno v:
Recercat: Dipósit de la Recerca de Catalunya
Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Nanoscale
Recercat. Dipósit de la Recerca de Catalunya
instname
Digital.CSIC. Repositorio Institucional del CSIC
Dipòsit Digital de Documents de la UAB
Universitat Autònoma de Barcelona
Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Nanoscale
Recercat. Dipósit de la Recerca de Catalunya
instname
Digital.CSIC. Repositorio Institucional del CSIC
Dipòsit Digital de Documents de la UAB
Universitat Autònoma de Barcelona
We show that one-dimensional (1d) GaN quantum-wires (QWRs) exhibit intense and spectrally sharp emission lines. These QWRs are realized in an entirely self-assembled growth process by molecular beam epitaxy (MBE) on the side facets of GaN/AlN nanowir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8ceaeee74af4b5f3c0120e9d17d7177
http://hdl.handle.net/2072/437878
http://hdl.handle.net/2072/437878
We investigate the emission directionality of electronic intraband (intersubband) transitions in stacked coupled quantum dots. Using a well-established eight-band $k \cdot p$ method, we demonstrate that the minor contributions from the valence band m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5381aec3aee15b5748e746114930ad01
Autor:
Benjamin Lingnau, Michael Lehmann, André Strittmatter, Mario Dähne, U. W. Pohl, Tore Niermann, Nina Owschimikow, Holger Eisele, Bastian Herzog, Andrei Schliwa, Kathy Lüdge, Andrea Lenz
Publikováno v:
Semiconductor Nanophotonics ISBN: 9783030356552
The cycled deposition of small InAs islands into a GaAs matrix leads to the formation of a tailored rough quantum well containing densely spaced In-rich agglomerations referred to as submonolayer quantum dots, which support an efficient exciton forma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d85b11ac88ebb7f467f3d98b8985fa10
https://doi.org/10.1007/978-3-030-35656-9_2
https://doi.org/10.1007/978-3-030-35656-9_2
Autor:
Michael Lehmann, Tobias Heindel, U. W. Pohl, Tore Niermann, Uwe Bandelow, Andrei Schliwa, Stephan Reitzenstein, Th. Koprucki, Hans-Jürgen Wünsche, André Strittmatter, Markus Kantner
Publikováno v:
Semiconductor Nanophotonics ISBN: 9783030356552
The strain field of selectively oxidized AlOx current apertures in an AlGaAs/GaAs mesa is utilized to define the nucleation site of InGaAs/GaAs quantum dots. A design is developed that allows for the self-aligned growth of single quantum dots in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28f198c6bdea51b9847b46e2ab3e8705
https://doi.org/10.1007/978-3-030-35656-9_3
https://doi.org/10.1007/978-3-030-35656-9_3
Publikováno v:
ACS Photonics. 5:4838-4845
The emission directionality of stacks of coupled quantum dots (QDs) is investigated within the framework of 8-band k·p-theory including strain and strain-induced piezoelectricity up to second order. Using an artificial cuboidal QD, we show that the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e562f1b0f3cab9422a357b8c2e3b88a0
https://doi.org/10.1021/acsphotonics.8b00956
https://doi.org/10.1021/acsphotonics.8b00956
We present a novel "linear combination of atomic orbitals"-type of approximation, enabling accurate electronic structure calculations for systems of up to 20 or more electronically coupled quantum dots. Using realistic single quantum dot wavefunction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b7e25e5bb6f1c5705b64c1f06d71f34