Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session H13: 2D Materials (General) -- Defects
2:30 PM–5:30 PM,
Tuesday, March 5, 2019
BCEC
Room: 153B
Sponsoring
Units:
DMP DCOMP
Chair: Victor Brar, University of Wisconsin - Madison
Abstract: H13.00005 : Quantum dynamics of point defects in hexagonal boron nitride with variable temperature
3:42 PM–3:54 PM
Presenter:
Benjamin Vest
(Caltech)
Authors:
Benjamin Vest
(Caltech)
Hamidreza Akbari
(Caltech)
Pankaj Jha
(Caltech)
Cora Went
(Caltech)
Wei-Hsiang Lin
(Caltech)
Harry Atwater
(Caltech)
Here, we systematically investigate the quantum dynamics of optically driven point defects in h-BN over a wide of temperature (4K-300K). We perform theoretical and experimental studies to quantify the role of dephasing on the intensity correlation of the scattered photons. We measure the linewidth of zero-phonon line as a function of temperature. Furthermore, we also measure the linewidth at each temperature as a function of pump intensity and estimate saturation count rate. Our results are consistent with saturation count rate extracted from measurement of peak intensity of ZPL as a function of pump intensity. These results provide new insight into the electronic structure of the emitters and the role of surrounding on its evolution.
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