Zeitschrift
- Titel:
- Nanophotonics
- Erschienen:
-
Berlin: de Gruyter
- Fußnote:
- Gesehen am 07.07.20
- Open Access
- Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International
- Umfang:
- Online-Ressource
- ISSN:
- 2192-8614
- ZDB-ID:
-
2674162-3
- VÖBB-Katalog:
- 35304435
- Frühere Titel:
- Nanophotonics
- Schlagworte:
- Zeitschrift
- ZLB-Systematik:
- Naturwissenschaften
- Sammlung:
- Naturwissenschaften
- Copyright:
- Rechte vorbehalten
- Zugriffsberechtigung:
- Freier Zugang
Aufsatz
- Titel:
- Nanoscale resolved mapping of the dipole emission of hBN color centers with a scattering-type scanning near-field optical microscope
- Erschienen:
-
Berlin: de Gruyter, 2025
- Sprache:
- Englisch
- Zusammenfassung:
- Abstract: Color centers in hexagonal boron nitride (hBN) are promising candidates as quantum light sources for future technologies. In this work, we utilize a scattering-type near-field optical microscope (s-SNOM) to study the photoluminescence (PL) emission characteristics of such quantum emitters in metalorganic vapor phase epitaxy grown hBN. On the one hand, we demonstrate direct near-field optical excitation and emission through interaction with the nanofocus of the tip resulting in a subdiffraction limited tip-enhanced PL hotspot. On the other hand, we show that indirect excitation and emission via scattering from the tip significantly increases the recorded PL intensity. This demonstrates that the tip-assisted PL (TAPL) process efficiently guides the generated light to the detector. We apply the TAPL method to map the in-plane dipole orientations of the hBN color centers on the nanoscale. This work promotes the widely available s-SNOM approach to applications in the quantum domain including characterization and optical control.
- Umfang:
- Online-Ressource
- Fußnote:
- Open Access
- Archivierung/Langzeitarchivierung gewährleistet
- Schlagworte:
- near-field spectroscopy ; photoluminescence ; hexagonal boron nitride ; color center
- ZLB-Systematik:
- Naturwissenschaften
- Sonstiges
- Sammlung:
- Naturwissenschaften
- Sonstiges
- Copyright:
- CC BY
- Zugriffsberechtigung:
- Freier Zugang
