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One-dimensional Tamm plasmons: Spatial confinement, propagation, and polarization properties

One-dimensional Tamm plasmons: Spatial confinement, propagation, and polarization properties
One-dimensional Tamm plasmons: Spatial confinement, propagation, and polarization properties
Tamm plasmons are confined optical states at the interface of a metal and a dielectric Bragg mirror. Unlike conventional surface plasmons, Tamm plasmons may be directly excited by an external light source in both TE and TM polarizations. Here we consider the one-dimensional propagation of Tamm plasmons under long and narrow metallic stripes deposited on top of a semiconductor Bragg mirror. The spatial confinement of the field imposed by the stripe and its impact on the structure and energy of Tamm modes are investigated. We show that the Tamm modes are coupled to surface plasmons arising at the stripe edges. These plasmons form an interference pattern close to the bottom surface of the stripe that involves modification of both the energy and loss rate for the Tamm mode. This phenomenon is pronounced only in the case of TE polarization of the Tamm mode. These findings pave the way to application of laterally confined Tamm plasmons in optical integrated circuits as well as to engineering potential traps for both Tamm modes and hybrid modes of Tamm plasmons and exciton polaritons with meV depth.
2469-9969
Chestnov, Yu
04e05b6a-7f15-444d-a34b-426339d3a98d
Sedov, Evgeny
09ed8f98-fb1e-44d5-a192-10b0c6541cd9
Kutrovskaya, Stella
9e8c7814-5e2f-4d3b-9e06-2101399988c9
Kucherik, A.O
d0ba3e63-f199-4d7c-a330-80b6be471e09
Arakelian, S.M
a3cebb1a-ef6c-4c8d-8958-14fb097a5d2d
Kavokin, Alexey
70ffda66-cfab-4365-b2db-c15e4fa1116b
Chestnov, Yu
04e05b6a-7f15-444d-a34b-426339d3a98d
Sedov, Evgeny
09ed8f98-fb1e-44d5-a192-10b0c6541cd9
Kutrovskaya, Stella
9e8c7814-5e2f-4d3b-9e06-2101399988c9
Kucherik, A.O
d0ba3e63-f199-4d7c-a330-80b6be471e09
Arakelian, S.M
a3cebb1a-ef6c-4c8d-8958-14fb097a5d2d
Kavokin, Alexey
70ffda66-cfab-4365-b2db-c15e4fa1116b

Chestnov, Yu, Sedov, Evgeny, Kutrovskaya, Stella, Kucherik, A.O, Arakelian, S.M and Kavokin, Alexey (2017) One-dimensional Tamm plasmons: Spatial confinement, propagation, and polarization properties. Physical Review B, 96. (doi:10.1103/PhysRevB.96.245309).

Record type: Article

Abstract

Tamm plasmons are confined optical states at the interface of a metal and a dielectric Bragg mirror. Unlike conventional surface plasmons, Tamm plasmons may be directly excited by an external light source in both TE and TM polarizations. Here we consider the one-dimensional propagation of Tamm plasmons under long and narrow metallic stripes deposited on top of a semiconductor Bragg mirror. The spatial confinement of the field imposed by the stripe and its impact on the structure and energy of Tamm modes are investigated. We show that the Tamm modes are coupled to surface plasmons arising at the stripe edges. These plasmons form an interference pattern close to the bottom surface of the stripe that involves modification of both the energy and loss rate for the Tamm mode. This phenomenon is pronounced only in the case of TE polarization of the Tamm mode. These findings pave the way to application of laterally confined Tamm plasmons in optical integrated circuits as well as to engineering potential traps for both Tamm modes and hybrid modes of Tamm plasmons and exciton polaritons with meV depth.

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One-dimensional Tamm plasmons: Spatial confinement, propagation, and polarization properties - Accepted Manuscript
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Accepted/In Press date: 4 December 2017
e-pub ahead of print date: 26 December 2017

Identifiers

Local EPrints ID: 417023
URI: https://eprints.soton.ac.uk/id/eprint/417023
ISSN: 2469-9969
PURE UUID: 42ae380a-24aa-45db-9bf1-0384b4ad033d

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Date deposited: 17 Jan 2018 17:30
Last modified: 14 Aug 2019 17:07

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