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Title: Active magneto-optical control of spontaneous emission in graphene

Journal Article · · Physical Review. B, Condensed Matter and Materials Physics
 [1];  [2];  [3];  [3];  [3];  [3];  [3]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. Federal do Rio de Janeiro, Rio de Janeiro (Brazil)
  2. Inst. de Ciencia de Materiales de Madrid, Madrid (Spain); Univ. of Minho, Braga (Portugal)
  3. Univ. of Southampton, Southampton (United Kingdom)

In this study, we investigate the spontaneous emission rate of a two-level quantum emitter near a graphene-coated substrate under the influence of an external magnetic field or strain induced pseudomagnetic field. We demonstrate that the application of the magnetic field can substantially increase or decrease the decay rate. We show that a suppression as large as 99% in the Purcell factor is achieved even for moderate magnetic fields. The emitter's lifetime is a discontinuous function of |B|, which is a direct consequence of the occurrence of discrete Landau levels in graphene. We demonstrate that, in the near-field regime, the magnetic field enables an unprecedented control of the decay pathways into which the photon/polariton can be emitted. Our findings strongly suggest that a magnetic field could act as an efficient agent for on-demand, active control of light-matter interactions in graphene at the quantum level.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
303286/2013-0; BEX 1497/14-6; SFRH/BD/78987/2011; AC52-06NA25396
OSTI ID:
1236755
Report Number(s):
LA-UR-15-23776; PRBMDO
Journal Information:
Physical Review. B, Condensed Matter and Materials Physics, Vol. 92, Issue 20; ISSN 1098-0121
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 51 works
Citation information provided by
Web of Science

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Cited By (17)

Gate voltage and doping effects on near-field radiation heat transfer in plasmonic heterogeneous pairs of graphene and black phosphorene journal January 2019
Weak-value amplification for Weyl-point separation in momentum space journal October 2018
Surface plasmon enhancement of spontaneous emission in graphene waveguides journal September 2016
Spatial modulation of the electromagnetic energy transfer by excitation of graphene waveguide surface plasmons journal March 2019
Enhancement and modulation of spontaneous emission near graphene-based hyperbolic metamaterials journal November 2019
Giant quantized Goos-Hänchen effect on the surface of graphene in the quantum Hall regime journal October 2017
Precision Measurement of the Optical Conductivity of Atomically Thin Crystals via the Photonic Spin Hall Effect journal January 2020
Controlling spontaneous emission via electronic correlations and temperature in transparent oxides journal December 2019
Determining graphene's induced band gap with magnetic and electric emitters journal February 2016
Tunable Fano resonances in the decay rates of a pointlike emitter near a graphene-coated nanowire journal December 2018
Landau quantisation of photonic spin Hall effect in monolayer black phosphorus journal December 2019
Spatial modulation of the electromagnetic energy transfer by excitation of graphene waveguide surface plasmons text January 2019
Topological phase transitions in the photonic spin Hall effect conference January 2017
Determining graphene's induced band gap with magnetic and electric emitters text January 2016
Nonlocal Optical Response in Topological Phase Transitions in the Graphene Family text January 2017
Tunable Fano resonances in the decay rates of a pointlike emitter near a graphene-coated nanowire text January 2018
Precision Measurement of the Optical Conductivity of Atomically Thin Crystals via Photonic Spin Hall Effect text January 2019