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Investigation of the spectroscopic properties of single defects in hexagonal boron nitride
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2019 (English)In: 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019, Institute of Electrical and Electronics Engineers Inc. , 2019Conference paper, Published paper (Refereed)
Abstract [en]

Among the quantum systems capable of emitting single photons, the class of recently discovered defects in hexagonal boron nitride (hBN) is especially interesting, as these defects offer much desired characteristics such as narrow emission lines and photostability [1]. Like for any new class of quantum emitters, the first challenges to solve are the understanding of their photophysics as well as to find ways to facilitate integration in photonics structures. Here, we will show our investigation of the optical transition in hBN with different methods: Employing excitation with a short laser pulse the emission properties in case of linear and non-linear excitation can be compared [2]. We find clear antibunching signals that prove the single emitter character in both excitation cases. To gain further knowledge, we also obtain saturation curves. From a comparison of one- and two-photon case insights about the level structure of the defects can be obtained. The possibility to perform two-photon excitation makes this single photon emitter an interesting candidate as a biosensor.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers Inc. , 2019.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-268557DOI: 10.1109/CLEOE-EQEC.2019.8872944Scopus ID: 2-s2.0-85074663199ISBN: 9781728104690 (print)OAI: oai:DiVA.org:kth-268557DiVA, id: diva2:1420537
Conference
2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019, 23 June 2019 through 27 June 2019
Note

QC 20200331

Available from: 2020-03-31 Created: 2020-03-31 Last updated: 2020-03-31Bibliographically approved

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Svedendahl, Mikael

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