Optically controlled charge state switching reveals sub-GHz homogeneous linewidth ensembles of SiV centers in a diamond nano-pyramid

2019 ◽  
Author(s):  
Louis Nicolas ◽  
Tom Delord ◽  
Paul Huillery ◽  
Gabriel Hétet
Keyword(s):  
Charge State ◽  
State Switching ◽  
Homogeneous Linewidth

scholarly journals Charge state switching of the divacancy defect in 4H -SiC

2018 ◽  
Vol 98 (21) ◽  
Author(s):  
Ariana Beste ◽  
DeCarlos E. Taylor ◽  
D. Andrew Golter ◽  
Chih W. Lai
Keyword(s):  
Charge State ◽  
State Switching

scholarly journals Active and fast charge-state switching of single NV centres in diamond by in-plane Al-Schottky junctions

2016 ◽  
Vol 7 ◽  
pp. 1727-1735 ◽  
Author(s):  
Christoph Schreyvogel ◽  
Vladimir Polyakov ◽  
Sina Burk ◽  
Helmut Fedder ◽  
Andrej Denisenko ◽  
...  
Keyword(s):  
Quantum Information ◽  
Charge State ◽  
Single Photon ◽  
Schottky Contact ◽  
Nitrogen Vacancy ◽  
Diode Structure ◽  
Diamond Surface ◽  
Switching Frequency ◽  
Near Surface ◽  
State Switching

In this paper, we demonstrate an active and fast control of the charge state and hence of the optical and electronic properties of single and near-surface nitrogen-vacancy centres (NV centres) in diamond. This active manipulation is achieved by using a two-dimensional Schottky-diode structure from diamond, i.e., by using aluminium as Schottky contact on a hydrogen terminated diamond surface. By changing the applied potential on the Schottky contact, we are able to actively switch single NV centres between all three charge states NV+, NV0 and NV− on a timescale of 10 to 100 ns, corresponding to a switching frequency of 10–100 MHz. This switching frequency is much higher than the hyperfine interaction frequency between an electron spin (of NV−) and a nuclear spin (of 15N or 13C for example) of 2.66 kHz. This high-frequency charge state switching with a planar diode structure would open the door for many quantum optical applications such as a quantum computer with single NVs for quantum information processing as well as single 13C atoms for long-lifetime storage of quantum information. Furthermore, a control of spectral emission properties of single NVs as a single photon emitters – embedded in photonic structures for example – can be realized which would be vital for quantum communication and cryptography.

scholarly journals Charge state switching of Cu acceptors in ZnO nanorods

2017 ◽  
Vol 110 (12) ◽  
pp. 121907 ◽  
Author(s):  
M. Azizar Rahman ◽  
Mika T. Westerhausen ◽  
Christian Nenstiel ◽  
Sumin Choi ◽  
Axel Hoffmann ◽  
...  
Keyword(s):  
Charge State ◽  
Zno Nanorods ◽  
State Switching

Charge state switching of deep levels for low-power optical modulation in silicon waveguides

2011 ◽  
Vol 36 (19) ◽  
pp. 3717 ◽  
Author(s):  
D. F. Logan ◽  
P. Velha ◽  
M. Sorel ◽  
R. M. De La Rue ◽  
G. Wojcik ◽  
...  
Keyword(s):  
Low Power ◽  
Charge State ◽  
Deep Levels ◽  
Optical Modulation ◽  
Silicon Waveguides ◽  
State Switching

scholarly journals Measurements of charge state distributions of 0.74 and 1.4  MeV/u heavy ions passing through dilute gases

2017 ◽  
Vol 20 (4) ◽  
Author(s):  
P. Scharrer ◽  
Ch. E. Düllmann ◽  
W. Barth ◽  
J. Khuyagbaatar ◽  
A. Yakushev ◽  
...  
Keyword(s):  
Charge State ◽  
Heavy Ions ◽  
Dilute Gases ◽  
Charge State Distributions

scholarly journals Optical spin-state polarization in a binuclear europium complex towards molecule-based coherent light-spin interfaces

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Kuppusamy Senthil Kumar ◽  
Diana Serrano ◽  
Aline M. Nonat ◽  
Benoît Heinrich ◽  
Lydia Karmazin ◽  
...  
Keyword(s):  
Ground State ◽  
Quantum Information Processing ◽  
Optical Transition ◽  
Molecular Engineering ◽  
Coherent Light ◽  
Nuclear Spins ◽  
Rare Earth Ion ◽  
Molecular Systems ◽  
Homogeneous Linewidth ◽  
State Spin

AbstractThe success of the emerging field of solid-state optical quantum information processing (QIP) critically depends on the access to resonant optical materials. Rare-earth ion (REI)-based molecular systems, whose quantum properties could be tuned taking advantage of molecular engineering strategies, are one of the systems actively pursued for the implementation of QIP schemes. Herein, we demonstrate the efficient polarization of ground-state nuclear spins—a fundamental requirement for all-optical spin initialization and addressing—in a binuclear Eu(III) complex, featuring inhomogeneously broadened 5D0 → 7F0 optical transition. At 1.4 K, long-lived spectral holes have been burnt in the transition: homogeneous linewidth (Γh) = 22 ± 1 MHz, which translates as optical coherence lifetime (T2opt) = 14.5 ± 0.7 ns, and ground-state spin population lifetime (T1spin) = 1.6 ± 0.4 s have been obtained. The results presented in this study could be a progressive step towards the realization of molecule-based coherent light-spin QIP interfaces.

Ground-state switching characteristics in vertically-coupled InGaN/GaN quantum dots

2013 ◽  
Vol 63 (11) ◽  
pp. 2269-2272 ◽  
Author(s):  
Seoung-Hwan Park ◽  
Woo-Pyo Hong ◽  
Jong-Jae Kim
Keyword(s):  
Quantum Dots ◽  
Ground State ◽  
State Switching ◽  
Switching Characteristics
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