Zobrazeno 1 - 10
of 94
pro vyhledávání: '"Callsen, Gordon"'
Autor:
Seemann, Wilken, Elhajhasan, Mahmoud, Themann, Julian, Dudde, Katharina, Würsch, Guillaume, Lierath, Jana, Ciers, Joachim, Haglund, Åsa, Protik, Nakib H., Romano, Giuseppe, Butté, Raphaël, Carlin, Jean-François, Grandjean, Nicolas, Callsen, Gordon
Semiconductor membranes find their widespread use in various research fields targeting medical, biological, environmental, and optical applications. Often such membranes derive their functionality from an inherent nanopatterning, which renders the de
Externí odkaz:
http://arxiv.org/abs/2410.12515
Autor:
Elhajhasan, Mahmoud, Seemann, Wilken, Dudde, Katharina, Vaske, Daniel, Callsen, Gordon, Rousseau, Ian, Weatherley, Thomas F. K., Carlin, Jean-François, Butté, Raphaël, Grandjean, Nicolas, Protik, Nakib H., Romano, Giuseppe
We present the simultaneous optical and thermal analysis of a freestanding photonic semiconductor membrane made from wurtzite III-nitride material. By linking micro-photoluminescence ($\mu$PL) spectroscopy with Raman thermometry, we demonstrate how a
Externí odkaz:
http://arxiv.org/abs/2306.16980
Publikováno v:
Light Sci Appl 11, 114 (2022)
III-nitride quantum dots (QDs) are a promising system actively studied for their ability to maintain single photon emission up to room temperature. Here, we report on the evolution of the emission properties of self-assembled GaN/AlN QDs for temperat
Externí odkaz:
http://arxiv.org/abs/2202.01663
Autor:
Tamariz, Sebastian, Callsen, Gordon, Stachurski, Johann, Shojiki, Kanako, Butté, Raphaël, Grandjean, Nicolas
Quantum dots (QDs) based on III-nitride semiconductors are promising for single photon emission at non-cryogenic temperatures due to their large exciton binding energies. Here, we demonstrate GaN QD single photon emitters operating at 300 K with $g^{
Externí odkaz:
http://arxiv.org/abs/2001.09805
Publikováno v:
Phys. Rev. X 9, 031030 (2019)
Since the early 1960s, alloys are commonly grouped into two classes, featuring bound states in the bandgap (I) or additional, non-discrete band states (II). Microscopic material parameters for class I alloys can directly be extracted from photolumine
Externí odkaz:
http://arxiv.org/abs/1811.02348
Autor:
Jagsch, Stefan T., Triviño, Noelia Vico, Lohof, Frederik, Callsen, Gordon, Kalinowski, Stefan, Rousseau, Ian M., Barzel, Roy, Carlin, Jean-François, Jahnke, Frank, Butté, Raphaël, Gies, Christopher, Hoffmann, Axel, Grandjean, Nicolas, Reitzenstein, Stephan
Publikováno v:
Nature Communications 9, 564 (2018)
Exploring the limits of spontaneous emission coupling is not only one of the central goals in the development of nanolasers, it is also highly relevant regarding future large-scale photonic integration requiring energy-efficient coherent light source
Externí odkaz:
http://arxiv.org/abs/1603.06447
Autor:
Wagner, Markus R., Callsen, Gordon, Reparaz, Juan S., Kirste, Ronny, Hoffmann, Axel, Rodina, Anna V., Schleife, Andre, Bechstedt, Friedhelm, Phillips, Matthew R.
Publikováno v:
Physical Review B 88, 235210 (2013)
The uniaxial stress dependence of the band structure and the exciton-polariton transitions in wurtzite ZnO is thoroughly studied using modern first-principles calculations based on the HSE+G0W0 approach, k p modeling using the deformation potential f
Externí odkaz:
http://arxiv.org/abs/1312.0529
Autor:
Elhajhasan, Mahmoud, Seemann, Wilken, Dudde, Katharina, Vaske, Daniel, Callsen, Gordon, Rousseau, Ian, Weatherley, Thomas F. K., Carlin, Jean-François, Butté, Raphaël, Grandjean, Nicolas, Protik, Nakib H., Romano, Guiseppe
We present the simultaneous optical and thermal analysis of a freestanding photonic semiconductor membrane made from wurtzite III-nitride material. By linking micro-photoluminescence ($\mu$PL) spectroscopy with Raman thermometry, we demonstrate how a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8717d2b5dda4d52e5790140d46ce375b
http://arxiv.org/abs/2306.16980
http://arxiv.org/abs/2306.16980
Akademický článek
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Autor:
Freytag, Stefan, Feneberg, Martin, Berger, Christoph, Bläsing, Jürgen, Dadgar, Armin, Callsen, Gordon, Nippert, Felix, Hoffmann, Axel, Bokov, Pavel Yu., Goldhahn, Rüdiger
Publikováno v:
Journal of Applied Physics; 2016, Vol. 120 Issue 1, p434-441, 8p, 1 Diagram, 4 Charts, 4 Graphs
