Výsledky vyhledávání - "Böttge, C. N."

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Magnetic control of Coulomb scattering and terahertz transitions among excitons

Autor: Bhattacharyya, J., Zybell, S., Eßer, F., Helm, M., Schneider, H., Schneebeli, L., Böttge, C. N., Breddermann, B., Kira, M., Koch, S. W., Andrews, A. M., Strasser, G.

Publikováno v: Phys. Rev. B 89, 125313 (2014)

Time-resolved terahertz quenching studies of the magnetoexcitonic photoluminescence from GaAs/AlGaAs quantum wells are performed. A microscopic theory is developed to analyze the experiments. Detailed experiment-theory comparisons reveal a remarkable

Externí odkaz: http://arxiv.org/abs/1309.6426

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Control of intra-excitonic scattering in semiconductor quantum wells by an external magnetic field

Autor: Schneider, H., Bhattacharyya, J., Zybell, S., Eßer, F., Helm, M., Schneebeli, L., Böttge, C. N., Breddermann, B., Kira, M., Koch, S. W.

Publikováno v: SPIE Photonics West 2015, 07.-12.02.2015, San Francisco, USA

We report on the internal dynamics of excitons in high-quality GaAs quantum wells and on the control of intra-excitonic transitions by an external magnetic field. The free-electron laser FELBE in Dresden is ideally suited for selective excitation of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______4577::e2fbbe297b582180f7943bc97bf13520
https://www.hzdr.de/publications/Publ-21885-1

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Control of Coulomb-mediated excitonic 2s emission by an external magnetic field

Autor: Bhattacharyya, J., Zybell, S., Winnerl, S., Schneebeli, L., Böttge, C. N., Breddermann, B., Kira, M., Koch, S. W., Helm, M., Schneider, H.

Publikováno v: International Workshop on Optical Terahertz Science and Technology 2013, 01.-05.04.2013, Kyoto, Japan

We report on time-resolved photoluminescence (PL) studies of exciton dynamics in undoped GaAs quantum wells in the presence of an external magnetic field. Subsequent to pulsed interband excitation, the photogenerated excitons are manipulated by apply

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______4577::4f961bbbca990f26dbf57849cd7a0db1
https://www.hzdr.de/publications/Publ-18250-1

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Terahertz-induced effects on excitons in magnetic field

Autor: Böttge, C. N., Breddermann, B., Schneebeli, L., Kira, M., Koch, S. W., Bhattacharyya, J., Schneider, H., Helm, M.

Publikováno v: Physica Status Solidi (C) 10(2013)9, 1218-1221

Terahertz-induced intra-exciton transitions are studied in semiconductor quantum-well systems under the influence of a constant magnetic field. A systematic description is developed to include carrier–carrier interactions, terahertz transitions, an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______4577::f2b5174b5e3e4ba1c27d53cd352414d7
https://www.hzdr.de/publications/Publ-19277-1

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Time-resolved photoluminescence quenching by intra-excitonic transitions in presence of external magnetic field

Autor: Bhattacharyya, J., Zybell, S., Helm, M., Schneider, H., Andrews, A. M., Strasser, G., Schneebeli, L., Böttge, C. N., Breddermann, B., Chatterjee, S., Kira, M., Koch, S. W.

Publikováno v: 11th International Workshop on Nonlinear Optics and Excitation Kinetics in Semiconductors, 23.-27.09.2012, Stuttgart, Germany

We present our experimental results on the excitation and manipulation of intra-excitonic transitions in semiconductor quantum wells. We performed time resolved photoluminescence (PL) quenching measurements on a GaAs/AlGaAs multiple QW sample. The ex

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______4577::42f30bed00368350b07392864af78b96
https://www.hzdr.de/publications/Publ-17910-1

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