Vertical and lateral carrier transport into InP quantum dots of a membrane external-cavity surface-emitting laser structure

Gordon Schmidt; Frank Bertram; Peter Veit; Julie Kernchen; Jürgen H. Christen; Ana Ćutuk; Michael Jetter; Peter Michler

doi:10.1117/12.2649915

20 March 2023 Vertical and lateral carrier transport into InP quantum dots of a membrane external-cavity surface-emitting laser structure

Gordon Schmidt, Frank Bertram, Peter Veit, Julie Kernchen, Jürgen H. Christen, Ana Ćutuk, Michael Jetter, Peter Michler

Author Affiliations +

Proceedings Volume PC12415, Physics and Simulation of Optoelectronic Devices XXXI; PC1241506 (2023) https://doi.org/10.1117/12.2649915
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

We present a nanoscopic investigation of the carrier transport into individual single InP quantum dots (QDs) of a membrane external-cavity surface-emitting laser structure (MECSEL) by means of highly spatially resolved cathodoluminescence spectroscopy directly performed in a scanning transmission electron microscope (STEM-CL). The lateral STEM-CL spectrum linescans across a single InP QD exhibit a characteristic change of excitonic transitions during this linescan. This gives direct access to the QD population by the generated excess carriers and the renormalization of the QD ground state while the electron beam approaches and subsequently recedes the QD position.

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Citation Download Citation

Gordon Schmidt, Frank Bertram, Peter Veit, Julie Kernchen, Jürgen H. Christen, Ana Ćutuk, Michael Jetter, and Peter Michler "Vertical and lateral carrier transport into InP quantum dots of a membrane external-cavity surface-emitting laser structure", Proc. SPIE PC12415, Physics and Simulation of Optoelectronic Devices XXXI, PC1241506 (20 March 2023); https://doi.org/10.1117/12.2649915

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