Strong coupling and exceptional points in optically pumped active hyperbolic metamaterials
File(s)acsphotonics-8b00300_accepted.pdf (2.83 MB)
Accepted version
Author(s)
Vaianella, Fabio
Hamm, Joachim
Hess, O
Maes, Bjorn
Type
Journal Article
Abstract
We investigate the interaction of light in gain-enhanced multilayered hyperbolic
metamaterials in the strong interaction regime. Pumping the dye in the dielectric
layers from inside the light cone, while emission occurs into the lower hyperbolic band
outside the light cone, eases the problem of light incoupling. In the strong coupling
regime both emission and absorption lines cause a distortion of the plasmonic modes
due to Rabi splitting and a
PT
-symmetry broken phase, with generation of exceptional
points at loss-gain compensation frequencies. We derive a semi-classical model that
describes these phenomena for finite and infinite devices in detail, requiring only the
overlap factor and the complex frequencies of the dye transition and the optical mode.
metamaterials in the strong interaction regime. Pumping the dye in the dielectric
layers from inside the light cone, while emission occurs into the lower hyperbolic band
outside the light cone, eases the problem of light incoupling. In the strong coupling
regime both emission and absorption lines cause a distortion of the plasmonic modes
due to Rabi splitting and a
PT
-symmetry broken phase, with generation of exceptional
points at loss-gain compensation frequencies. We derive a semi-classical model that
describes these phenomena for finite and infinite devices in detail, requiring only the
overlap factor and the complex frequencies of the dye transition and the optical mode.
Date Issued
2018-06-20
Date Acceptance
2018-04-10
Citation
ACS Photonics, 2018, 5 (6), pp.2486-2495
ISSN
2330-4022
Publisher
American Chemical Society
Start Page
2486
End Page
2495
Journal / Book Title
ACS Photonics
Volume
5
Issue
6
Copyright Statement
© 2018 American Chemical Society
Sponsor
Engineering & Physical Science Research Council (E
Engineering & Physical Science Research Council (EPSRC)
Engineering and Physical Sciences Research Council
Grant Number
RG72590
EP/L024926/1
EP/L024926/1
Subjects
Science & Technology
Technology
Physical Sciences
Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Optics
Physics, Applied
Physics, Condensed Matter
Science & Technology - Other Topics
Materials Science
Physics
hyperbolic metamaterials
active plasmonics
strong coupling
exceptional points
SPONTANEOUS EMISSION
PLASMON POLARITONS
DIELECTRIC MEDIUM
SURFACE-PLASMONS
GAIN
ENHANCEMENT
REFLECTION
REFRACTION
MOLECULES
SYMMETRY
Publication Status
Published
Date Publish Online
2018-04-10