The resonance properties of a plasmonic dipole antenna array depend on its geometry and the properties of its surrounding medium. The linear optical properties of an array of plasmonic dipole antennas can be modified with the inclusion of an epsilon-near-zero (ENZ) thin film. In this work, we numerically investigate the roles of the antenna dimensions, the ENZ film thickness and loss, and the separation between the antenna and the ENZ film in determining the linear optical response of the antenna–ENZ metasurface. The results show that for a sufficiently small separation, the linear optical properties of the antenna array are determined by the strong or ultrastrong coupling with the ENZ film and are only weakly dependent on the antenna geometry. We show that for metasurfaces with thick, lossy ENZ films, the lower polariton branch is not observable due to the high loss of ENZ films. Since the dependence of the upper polariton on antenna length is weak, this results in a single antenna-length-invariant resonance. However, in the presence of low-loss ENZ films, the lower polariton branch is also visible for antenna–ENZ metasurfaces with thicker ENZ films, indicating a strong coupling between the antenna array and the ENZ film. For a given antenna geometry, the coupling strength increases with increasing thickness of the ENZ film and can reach up to ∼50% of the zero-permittivity frequency of the ENZ film, indicating an ultrastrong coupling between the plasmonic antenna array and the ENZ film.
Skip Nav Destination
,
,
,
,
,
,
,
,
CHORUS
Article navigation
14 June 2021
Research Article|
June 14 2021
Dependence of the coupling properties between a plasmonic antenna array and a sub-wavelength epsilon-near-zero film on structural and material parameters Available to Purchase
Special Collection:
Metastructures: From Physics to Application
Karapet Manukyan
;
Karapet Manukyan
a)
1
Department of Electrical Engineering, University of Southern California
, Los Angeles, California 90089, USA
a)Author to whom correspondence should be addressed: [email protected]
Search for other works by this author on:
M. Zahirul Alam
;
M. Zahirul Alam
2
Department of Physics, University of Ottawa
, Ottawa, Ontario K1N 6N5, Canada
Search for other works by this author on:
Cong Liu;
Cong Liu
1
Department of Electrical Engineering, University of Southern California
, Los Angeles, California 90089, USA
3
Department of Physics and Astronomy, University of Southern California
, Los Angeles, California 90089, USA
Search for other works by this author on:
Kai Pang
;
Kai Pang
1
Department of Electrical Engineering, University of Southern California
, Los Angeles, California 90089, USA
Search for other works by this author on:
Hao Song;
Hao Song
1
Department of Electrical Engineering, University of Southern California
, Los Angeles, California 90089, USA
Search for other works by this author on:
Zhe Zhao;
Zhe Zhao
1
Department of Electrical Engineering, University of Southern California
, Los Angeles, California 90089, USA
Search for other works by this author on:
Moshe Tur;
Moshe Tur
4
School of Electrical Engineering, Tel Aviv University
, Ramat Aviv 69978, Israel
Search for other works by this author on:
Robert W. Boyd
;
Robert W. Boyd
2
Department of Physics, University of Ottawa
, Ottawa, Ontario K1N 6N5, Canada
5
The Institute of Optics, University of Rochester
, Rochester, New York 14627, USA
Search for other works by this author on:
Alan E. Willner
Alan E. Willner
1
Department of Electrical Engineering, University of Southern California
, Los Angeles, California 90089, USA
Search for other works by this author on:
Karapet Manukyan
1,a)
M. Zahirul Alam
2
Cong Liu
1,3
Kai Pang
1
Hao Song
1
Zhe Zhao
1
Moshe Tur
4
Robert W. Boyd
2,5
Alan E. Willner
1
1
Department of Electrical Engineering, University of Southern California
, Los Angeles, California 90089, USA
2
Department of Physics, University of Ottawa
, Ottawa, Ontario K1N 6N5, Canada
3
Department of Physics and Astronomy, University of Southern California
, Los Angeles, California 90089, USA
4
School of Electrical Engineering, Tel Aviv University
, Ramat Aviv 69978, Israel
5
The Institute of Optics, University of Rochester
, Rochester, New York 14627, USA
a)Author to whom correspondence should be addressed: [email protected]
Note: This Paper is part of the APL Special Collection on Metastructures: From Physics to Applications.
Appl. Phys. Lett. 118, 241102 (2021)
Article history
Received:
January 01 2021
Accepted:
May 24 2021
Citation
Karapet Manukyan, M. Zahirul Alam, Cong Liu, Kai Pang, Hao Song, Zhe Zhao, Moshe Tur, Robert W. Boyd, Alan E. Willner; Dependence of the coupling properties between a plasmonic antenna array and a sub-wavelength epsilon-near-zero film on structural and material parameters. Appl. Phys. Lett. 14 June 2021; 118 (24): 241102. https://doi.org/10.1063/5.0042599
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Citing articles via
Roadmap on photonic metasurfaces
Sebastian A. Schulz, Rupert. F. Oulton, et al.
Attosecond physics and technology
O. Alexander, D. Ayuso, et al.
THz cyclotron resonance of a 2D hole gas in a GaN/AlN heterostructure
J. Wang, D. G. Rickel, et al.
Related Content
Epsilon-near-zero response in indium tin oxide thin films: Octave span tuning and IR plasmonics
J. Appl. Phys. (January 2020)
High-throughput investigation of second harmonic generation enhancement in indium tin oxide films: Effects of Sn doping
Appl. Phys. Lett. (October 2023)
Resonant light–matter interaction with epsilon-near-zero photonic structures
Appl. Phys. Rev. (April 2025)
Tunable magnetization of infrared epsilon-near-zero media via field-effect modulation
Appl. Phys. Lett. (May 2018)
Enhancement of luminescence of quantum emitters in epsilon-near-zero waveguides
Appl. Phys. Lett. (November 2020)