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Nonlinear response and strong coupling of surface phonon polaritons

Nonlinear response and strong coupling of surface phonon polaritons
Nonlinear response and strong coupling of surface phonon polaritons

Analogous to surface plasmon polaritons in metals, polar dielectrics support surface phonon polaritons (SPhP) in the mid infrared (MIR) spectral region. In contrast to their plasmonic counterpart, however, SPhPs exhibit much longer lifetimes, and hence constitute a promising alternative in the development of nanophotonics. Employing an MIR free-electron laser, we here experimentally reveal resonant second harmonic generation from SPhPs, excited in the Otto geometry for prism coupling. In a second system featuring an ultrathin layer on top of the SPhP active material, we observe strong coupling of the bulk SPhP to the epsilon near zero mode supported by the thin layer. Our experimental findings are corroborated using a specifically developed matrix formalism for anisotropic multilayer wave propagation.

Epsilon near zero mode, Second harmonic generation, Strong coupling, Surface phonon polariton
1874-6500
425-426
Springer Verlag
Passler, Nikolai
4ee2c4e6-719a-480d-83d2-721b461d8877
Razdolski, Ilya
74907f98-c805-4c27-9c6d-c89db462cda5
Gewinner, Sandy
f572801d-f52c-4f5e-a925-d402b22504a9
Schöllkopf, Wieland
b7bc2bfe-db44-4a8c-bb83-5b4147a1f702
De Liberato, Simone
5942e45f-3115-4027-8653-a82667ed8473
Gubbin, Christopher
09b75073-7a9a-4443-9a84-1458ec2535e9
Caldwell, Joshua
a1eb4205-8a65-48cb-9e7b-4213d744970e
Wolf, Martin
8e4f5dc4-02c9-4b96-b312-daff6004618d
Paarmann, Alexander
9699aa61-532e-4947-80ea-278f81be011a
Passler, Nikolai
4ee2c4e6-719a-480d-83d2-721b461d8877
Razdolski, Ilya
74907f98-c805-4c27-9c6d-c89db462cda5
Gewinner, Sandy
f572801d-f52c-4f5e-a925-d402b22504a9
Schöllkopf, Wieland
b7bc2bfe-db44-4a8c-bb83-5b4147a1f702
De Liberato, Simone
5942e45f-3115-4027-8653-a82667ed8473
Gubbin, Christopher
09b75073-7a9a-4443-9a84-1458ec2535e9
Caldwell, Joshua
a1eb4205-8a65-48cb-9e7b-4213d744970e
Wolf, Martin
8e4f5dc4-02c9-4b96-b312-daff6004618d
Paarmann, Alexander
9699aa61-532e-4947-80ea-278f81be011a

Passler, Nikolai, Razdolski, Ilya, Gewinner, Sandy, Schöllkopf, Wieland, De Liberato, Simone, Gubbin, Christopher, Caldwell, Joshua, Wolf, Martin and Paarmann, Alexander (2018) Nonlinear response and strong coupling of surface phonon polaritons. In, NATO Science for Peace and Security Series B: Physics and Biophysics. (NATO Science for Peace and Security Series B: Physics and Biophysics, , (doi:10.1007/978-94-024-1544-5_44), Part F3) Springer Verlag, pp. 425-426. (doi:10.1007/978-94-024-1544-5_44).

Record type: Book Section

Abstract

Analogous to surface plasmon polaritons in metals, polar dielectrics support surface phonon polaritons (SPhP) in the mid infrared (MIR) spectral region. In contrast to their plasmonic counterpart, however, SPhPs exhibit much longer lifetimes, and hence constitute a promising alternative in the development of nanophotonics. Employing an MIR free-electron laser, we here experimentally reveal resonant second harmonic generation from SPhPs, excited in the Otto geometry for prism coupling. In a second system featuring an ultrathin layer on top of the SPhP active material, we observe strong coupling of the bulk SPhP to the epsilon near zero mode supported by the thin layer. Our experimental findings are corroborated using a specifically developed matrix formalism for anisotropic multilayer wave propagation.

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More information

e-pub ahead of print date: 20 September 2018
Published date: 20 September 2018
Keywords: Epsilon near zero mode, Second harmonic generation, Strong coupling, Surface phonon polariton

Identifiers

Local EPrints ID: 425171
URI: https://eprints.soton.ac.uk/id/eprint/425171
ISSN: 1874-6500
PURE UUID: 890b69c3-1049-4496-99bc-2efd1a32440c
ORCID for Simone De Liberato: ORCID iD orcid.org/0000-0002-4851-2633
ORCID for Christopher Gubbin: ORCID iD orcid.org/0000-0003-3988-028X

Catalogue record

Date deposited: 11 Oct 2018 16:30
Last modified: 08 Jun 2019 00:29

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Contributors

Author: Nikolai Passler
Author: Ilya Razdolski
Author: Sandy Gewinner
Author: Wieland Schöllkopf
Author: Christopher Gubbin ORCID iD
Author: Joshua Caldwell
Author: Martin Wolf
Author: Alexander Paarmann

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