SKM 2021 – wissenschaftliches Programm
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HL: Fachverband Halbleiterphysik
HL 7: Semiconductor Lasers
HL 7.5: Vortrag
Dienstag, 28. September 2021, 11:15–11:30, H4
Investigation of the bimodal behavior of microlasers with a two-channel photon number-resolving transition edge sensor system — •Marco Schmidt1,2, Isa Hedda Grothe3, Sergej Neumeier3, Lucas Bremer1, Martin von Helversen1, Wenera Zent1, Boris Melcher3, Jörn Beyer2, Christian Schneider4,5, Sven Höfling4, Jan Wiersig3, and Stephan Reitzenstein1 — 1Institut für Festkörperphysik, Technische Universität Berlin, Hardenbergstraße 36, 10623 Berlin — 2Physikalisch-Technische Bundesanstalt, Abbestraße 2-12, 10587 Berlin — 3Institut für Physik, Otto-von-Guericke-Universität Magdeburg, Universitätsplatz 2, 39106 Magdeburg — 4Technische Physik, Universität Würzburg, Am Hubland, 97074 Würzburg — 5Universität Oldenburg, 26129 Oldenburg
A two-channel photon-number-resolving (PNR) transition-edge sensor (TES) is used to measure the photon-number distribution of a bimodal quantum-dot micropillar laser [1]. The TES system simultaneously detect light emission of two orthogonal components of the fundamental emission mode of the bimodal microlaser. The applied cross-correlation scheme provides an unprecedented access to the joint PNR and allows an insight into the photon statistics and dynamics of the coupled mode components. Especially, the measurements reveal an optical bi-stability of the anti-correlated mode components, which can be interpreted as a temporal hopping between emission with coherent and thermal-like emission statistics. Our studies clearly demonstrate the great advantage of investigating nanophotonic devices via TESs.
[1] M. Schmidt et al, Phys. Rev. Res. 3, 013263 (2021)