Stimulated Emission Depletion Spectroscopy of Color Centers in Hexagonal Boron Nitride

[Image: see text] We demonstrate the use of Stimulated Emission Depletion (STED) spectroscopy to map the electron-optical-phonon sideband of the ground state of the radiative transition of color centers in hexagonal boron nitride emitting at 2.0–2.2 eV, with in-plane linear polarization. The measure...

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Autores principales: Malein, Ralph Nicholas Edward, Khatri, Prince, Ramsay, Andrew J., Luxmoore, Isaac J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2021
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8155571/
https://www.ncbi.nlm.nih.gov/pubmed/34056033
http://dx.doi.org/10.1021/acsphotonics.0c01917
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author Malein, Ralph Nicholas Edward
Khatri, Prince
Ramsay, Andrew J.
Luxmoore, Isaac J.
author_facet Malein, Ralph Nicholas Edward
Khatri, Prince
Ramsay, Andrew J.
Luxmoore, Isaac J.
author_sort Malein, Ralph Nicholas Edward
collection PubMed
description [Image: see text] We demonstrate the use of Stimulated Emission Depletion (STED) spectroscopy to map the electron-optical-phonon sideband of the ground state of the radiative transition of color centers in hexagonal boron nitride emitting at 2.0–2.2 eV, with in-plane linear polarization. The measurements are compared to photoluminescence of excitation (PLE) spectra that maps the electron-optical-phonon sideband of the excited state. The main qualitative difference is a red-shift in the longitudinal optical phonon peak associated with E(1u) symmetry at the zone center. We compare our results to theoretical work on different defect species in hBN and find they are consistent with a carbon-based defect.
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spelling pubmed-81555712021-05-28 Stimulated Emission Depletion Spectroscopy of Color Centers in Hexagonal Boron Nitride Malein, Ralph Nicholas Edward Khatri, Prince Ramsay, Andrew J. Luxmoore, Isaac J. ACS Photonics [Image: see text] We demonstrate the use of Stimulated Emission Depletion (STED) spectroscopy to map the electron-optical-phonon sideband of the ground state of the radiative transition of color centers in hexagonal boron nitride emitting at 2.0–2.2 eV, with in-plane linear polarization. The measurements are compared to photoluminescence of excitation (PLE) spectra that maps the electron-optical-phonon sideband of the excited state. The main qualitative difference is a red-shift in the longitudinal optical phonon peak associated with E(1u) symmetry at the zone center. We compare our results to theoretical work on different defect species in hBN and find they are consistent with a carbon-based defect. American Chemical Society 2021-04-07 2021-04-21 /pmc/articles/PMC8155571/ /pubmed/34056033 http://dx.doi.org/10.1021/acsphotonics.0c01917 Text en © 2021 The Authors. Published by American Chemical Society Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Malein, Ralph Nicholas Edward
Khatri, Prince
Ramsay, Andrew J.
Luxmoore, Isaac J.
Stimulated Emission Depletion Spectroscopy of Color Centers in Hexagonal Boron Nitride
title Stimulated Emission Depletion Spectroscopy of Color Centers in Hexagonal Boron Nitride
title_full Stimulated Emission Depletion Spectroscopy of Color Centers in Hexagonal Boron Nitride
title_fullStr Stimulated Emission Depletion Spectroscopy of Color Centers in Hexagonal Boron Nitride
title_full_unstemmed Stimulated Emission Depletion Spectroscopy of Color Centers in Hexagonal Boron Nitride
title_short Stimulated Emission Depletion Spectroscopy of Color Centers in Hexagonal Boron Nitride
title_sort stimulated emission depletion spectroscopy of color centers in hexagonal boron nitride
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8155571/
https://www.ncbi.nlm.nih.gov/pubmed/34056033
http://dx.doi.org/10.1021/acsphotonics.0c01917
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