Single photon emission from donor bound excitons in ZnSe quantum wells

ORAL

Abstract

Donor impurities in ZnSe have been shown to create shallow bound excitons. The radiative recombination of such bound excitons can be employed for single-photon generation. In this study, we investigate Cl doped ZnSe quantum wells for their radiative properties. We demonstrate single-photon generation from Cl-bound excitons. We support our findings with photoluminescence excitation (PLE) and resonant photoluminescence measurements. In addition, we characterize the temperature-dependent lifetime of the emission and discuss the possible decay mechanisms. Lastly, we investigate the Zeeman levels of the ground state electron by performing magneto-spectroscopy.

*This work is funded by the Air Force Office of Scientific Research (AFOSR) grant #FA95502010250, the Maryland-Army Research Laboratory (ARL) Quantum Partnership #W911NF1920181, the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy - Cluster of Excellence Matter and Light for Quantum Computing (ML4Q) EXC 2004/1-390534769.R.M.P acknowledges support through an appointment to the Intelligence Community Postdoctoral Research Fellowship Program at the University of Maryland, administered by Oak Ridge Institute for Science and Education through an interagency agreement between the U.S. Department of Energy and the Office of the Director of National Intelligence.

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Publication: "Single photon emission from donor bound excitons in ZnSe quantum wells" manuscript is in preparation.

Presenters

  • Aziz Karasahin

    • University of Maryland, College Park

Authors

  • Aziz Karasahin

    • University of Maryland, College Park

  • Robert M Pettit

    • University of Maryland University College
    • University of Maryland, College Park

  • Nils von den Driesch

    • Peter Grünberg Institute (PGI-9), Forschungszentrum Jülich
    • Peter Grünberg Institute (PGI), Forschungszentrum Jülich

  • Marvin M Jansen

    • Peter Grünberg Institute (PGI-9), Forschungszentrum Jülich
    • Peter Grünberg Institut (PGI), Forschungszentrum Jülich

  • Alexander Pawlis

    • Peter Grünberg Institute (PGI-9), Forschungszentrum Jülich
    • Peter Grünberg Institut (PGI), Forschungszentrum Jülich

  • Edo Waks

    • University of Maryland, College Park