Details
| Original language | English |
|---|---|
| Article number | 874 |
| Journal | Nature Communications |
| Volume | 9 |
| Issue number | 1 |
| Publication status | Published - 1 Dec 2018 |
| Externally published | Yes |
Abstract
Layered van der Waals materials are emerging as compelling two-dimensional platforms for nanophotonics, polaritonics, valleytronics and spintronics, and have the potential to transform applications in sensing, imaging and quantum information processing. Among these, hexagonal boron nitride (hBN) is known to host ultra-bright, room-temperature quantum emitters, whose nature is yet to be fully understood. Here we present a set of measurements that give unique insight into the photophysical properties and level structure of hBN quantum emitters. Specifically, we report the existence of a class of hBN quantum emitters with a fast-decaying intermediate and a long-lived metastable state accessible from the first excited electronic state. Furthermore, by means of a two-laser repumping scheme, we show an enhanced photoluminescence and emission intensity, which can be utilized to realize a new modality of far-field super-resolution imaging. Our findings expand current understanding of quantum emitters in hBN and show new potential ways of harnessing their nonlinear optical properties in sub-diffraction nanoscopy.
ASJC Scopus subject areas
- Chemistry(all)
- General Chemistry
- Biochemistry, Genetics and Molecular Biology(all)
- General Biochemistry,Genetics and Molecular Biology
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Nature Communications, Vol. 9, No. 1, 874, 01.12.2018.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - All-optical control and super-resolution imaging of quantum emitters in layered materials
AU - Kianinia, Mehran
AU - Bradac, Carlo
AU - Sontheimer, Bernd
AU - Wang, Fan
AU - Tran, Toan Trong
AU - Nguyen , Minh
AU - Kim, Sejeong
AU - Xu, Zai Quan
AU - Jin, Dayong
AU - Schell, Andreas W.
AU - Lobo, Charlene J.
AU - Aharonovich, Igor
AU - Toth, Milos
N1 - Funding information: We acknowledge the financial support from the Australian Research Council (DE130100592 and DP140102721), FEI Company, the Asian Office of Aerospace Research and Development grant (FA2386-17-1-4064) and Office of Naval Research Global (N62909-18-1-2025). This research is supported in part by an Australian Government Research Training Program (RTP) Scholarship. B.S. acknowledges the support by the Deutsche Forschungsgemeinschaft, DFG, (project C2 in the CRC951).
PY - 2018/12/1
Y1 - 2018/12/1
N2 - Layered van der Waals materials are emerging as compelling two-dimensional platforms for nanophotonics, polaritonics, valleytronics and spintronics, and have the potential to transform applications in sensing, imaging and quantum information processing. Among these, hexagonal boron nitride (hBN) is known to host ultra-bright, room-temperature quantum emitters, whose nature is yet to be fully understood. Here we present a set of measurements that give unique insight into the photophysical properties and level structure of hBN quantum emitters. Specifically, we report the existence of a class of hBN quantum emitters with a fast-decaying intermediate and a long-lived metastable state accessible from the first excited electronic state. Furthermore, by means of a two-laser repumping scheme, we show an enhanced photoluminescence and emission intensity, which can be utilized to realize a new modality of far-field super-resolution imaging. Our findings expand current understanding of quantum emitters in hBN and show new potential ways of harnessing their nonlinear optical properties in sub-diffraction nanoscopy.
AB - Layered van der Waals materials are emerging as compelling two-dimensional platforms for nanophotonics, polaritonics, valleytronics and spintronics, and have the potential to transform applications in sensing, imaging and quantum information processing. Among these, hexagonal boron nitride (hBN) is known to host ultra-bright, room-temperature quantum emitters, whose nature is yet to be fully understood. Here we present a set of measurements that give unique insight into the photophysical properties and level structure of hBN quantum emitters. Specifically, we report the existence of a class of hBN quantum emitters with a fast-decaying intermediate and a long-lived metastable state accessible from the first excited electronic state. Furthermore, by means of a two-laser repumping scheme, we show an enhanced photoluminescence and emission intensity, which can be utilized to realize a new modality of far-field super-resolution imaging. Our findings expand current understanding of quantum emitters in hBN and show new potential ways of harnessing their nonlinear optical properties in sub-diffraction nanoscopy.
UR - http://www.scopus.com/inward/record.url?scp=85042788138&partnerID=8YFLogxK
U2 - 10.1038/s41467-018-03290-0
DO - 10.1038/s41467-018-03290-0
M3 - Article
C2 - 29491451
AN - SCOPUS:85042788138
VL - 9
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
IS - 1
M1 - 874
ER -