Dr. Gordon Callsen Profile

Dr. Gordon Callsen

at Technische Univ Berlin

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Author

Publications (6)

Proceedings Article | 4 March 2019 Presentation

Nanometer scale cathodoluminescence of GaN quantum-dots on a wavelength-matched deep-UV distributed Bragg reflector (Conference Presentation)

Hannes Schuermann, Gordon Schmidt, Christoph Berger, Sebastian Metzner, Peter Veit, Jürgen Bläsing, Frank Bertram, Armin Dadgar, André Strittmatter, Jürgen Christen, Stefan Kalinowski, Gordon Callsen, Stefan Jagsch, Markus Wagner, Axel Hoffmann

Proceedings Volume 10929, 109290A (2019) https://doi.org/10.1117/12.2510350

KEYWORDS: Vapor phase epitaxy, Gallium nitride, Deep ultraviolet, Distributed Bragg reflectors, Quantum dots, Reflectivity, Epitaxy, Single photon, Absorption, Gallium

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Proceedings Article | 14 March 2018 Presentation

QCSE tuning in polar GaN/AlN heterostructures (Conference Presentation)

Gerald Hönig, Sarah Schlichting, Markus Wagner, Jan Müssener, Pascal Hille, Tim Grieb, Jörg Teubert, Jörg Schörmann, Andreas Rosenauer, Martin Eickhoff, Axel Hoffmann, Gordon Callsen

Proceedings Volume 10554, 105540B (2018) https://doi.org/10.1117/12.2295328

KEYWORDS: Heterojunctions, Gallium nitride, Quantum efficiency, Nanostructures, Nanowires, Excitons, Light sources

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Proceedings Article | 14 March 2018 Presentation

Optical properties of doped GaN (Conference Presentation)

Axel Hoffmann, Christian Nenstiel, Markus Wagner, Felix Nippert, Gordon Callsen, Nadja Jankowski, Armin Dadgar, Stacia Keller

Proceedings Volume 10532, 105320M (2018) https://doi.org/10.1117/12.2293824

KEYWORDS: Gallium nitride, Phonons, Optical properties, Excitons, Germanium, Particles, Silicon, Silicon carbide, Carbon, Transition metals

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Proceedings Article | 14 March 2018 Presentation

Carrier localization in InGaN-based light-emitting diodes (Conference Presentation)

Felix Nippert, Sergey Karpov, Markus Wagner, Gordon Callsen, Thomas Kure, Bastian Galler, Hans-Jürgen Lugauer, Martin Strassburg, Axel Hoffmann

Proceedings Volume 10554, 105540D (2018) https://doi.org/10.1117/12.2292437

KEYWORDS: Light emitting diodes, Quantum efficiency, Applied physics, Indium, Electrons, Quantum wells, Electro optics, Electroluminescence, Internal quantum efficiency, Indium gallium nitride

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Proceedings Article | 1 May 2017 Presentation

Phononic properties of superlattices and multi quantum well heterostructures (Conference Presentation)

Markus Wagner, Juan Sebastian Reparaz, Gordon Callsen, Felix Nippert, Thomas Kure, Axel Hoffmann, Maxime Hugues, Monique Teysseire, Benjamin Damilano, Jean-Michel Chauveau

Proceedings Volume 10105, 101050P (2017) https://doi.org/10.1117/12.2253653

KEYWORDS: Current controlled current source, Phonons, Quantum wells, Superlattices, Oxides, Heterojunctions, Magnesium

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Proceedings Article | 19 April 2017 Presentation

Direct comparison of structural and optical properties of a nitride-based core-shell microrod LED by means of highly spatially-resolved cathodoluminescence and u-Raman (Conference Presentation)

Frank Bertram, Marcus Müller, Peter Veit, Christian Nenstiel, Gordon Callsen, Matin Mohajerani, Jana Hartmann, Hao Zhou, Hergo-Heinrich Wehmann, Axel Hoffmann, Andreas Waag, Jürgen Christen

Proceedings Volume 10104, 101041V (2017) https://doi.org/10.1117/12.2251748

KEYWORDS: Scanning electron microscopy, Electron microscopes, Gallium nitride, Quantum wells, Indium gallium nitride, Scanning transmission electron microscopy, Light emitting diodes, Raman spectroscopy, Indium, Optical properties

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Showing 5 of 6 publications

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