Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Niehus, Manfred"'
Autor:
Mendes, Pedro Neto, Teixeira, Gonçalo Lobato, Pinho, David, Rocha, Rui, André, Paulo, Niehus, Manfred, Faleiro, Ricardo, Rusca, Davide, Cruzeiro, Emmanuel Zambrini
Quantum key distribution is costly and, at the moment, offers low performance in space applications. Other more recent protocols could offer a potential practical solution to this problem. In this work, a preliminary optical payload design using comm
Externí odkaz:
http://arxiv.org/abs/2310.16017
Autor:
Galetsky, Vladlen, Niehus, Manfred
In this work, we model and simulate the performance of a quantum key distribution (QKD) downlink from a low earth orbit (LEO) small satellite to an optical ground station (OGS), as integral part of the concept and preliminary design phase of the Quan
Externí odkaz:
http://arxiv.org/abs/2209.10293
Akademický článek
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Publikováno v:
In Procedia Technology 2014 17:534-541
Autor:
Revés, João, Viveiros, Inês, Cunha, Rita, Rocha, Rui, Monteiro, João Paulo, Borralho, Ana, André, Paulo, Niehus, Manfred, Mendes, Pedro, Ruas, João, Soares, Miguel, Pinho, David, Galetsky, Vladlen, Fernandes, Carlos, Zambrini Cruzeiro, Emmanuel, Ribeiro, Rafaela, Omar, Yasser
Publikováno v:
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Universitat Politècnica de Catalunya (UPC)
This article presents the QuantSaT-PT project, an effort to create the first Portuguese nanosatellite for space to ground quantum communication. Focused on the Attitude Determination and Control System, it describes the different elements that allow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26c6567a3d49ba44a5d2c089558f9d5d
Akademický článek
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Autor:
Pinto, Armando, Silva, Nuno, Muga, Nelson, Almeida, Álvaro, Carneiro, Steven, Martins, Luís, Fernandes, Gil, Niehus, Manfred, André, Paulo, Nogueira, Rogério, Pinto, João
Publikováno v:
research@ua; Vol 1 (2010)
research@ua; vol. 1 (2010)
research@ua; vol. 1 (2010)
No abstract available.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=proauaplataf::ed540f39b7d20c01de2547c8c5ae0136
https://proa.ua.pt/index.php/researchua/article/view/14968
https://proa.ua.pt/index.php/researchua/article/view/14968
Autor:
Niehus, Manfred, Schwarz, Reinhard
With two interfering pulses from the 4th harmonic of a Nd-YAG laser we burnt a periodic lattice structure into the surface of GaN thin films. The lattice period of this permanent grating could be controlled between less than one and several tens of m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2594::af614bb85571886706addc72d75d2bcc
https://hdl.handle.net/10400.21/8801
https://hdl.handle.net/10400.21/8801
Autor:
Niehus, Manfred
Neste trabalho estudamos as propriedades ópticas e o transporte electrónico em semicondutores de grande hiato, usando uma abordagem relacionada com a desordem estrutural frequentemente encontrada nestes materiais. Observamos uma variedade de caract
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2594::76d5e77e83b2c14a0fc6f85d6d03d798
https://hdl.handle.net/10400.21/8787
https://hdl.handle.net/10400.21/8787