Second harmonic generation from strongly coupled localized and propagating phonon-polariton modes
Second harmonic generation from strongly coupled localized and propagating phonon-polariton modes
We experimentally investigate second harmonic generation from strongly coupled localized and propagative phonon polariton modes in arrays of silicon carbide nanopillars. Our results clearly demonstrate the hybrid nature of the system's eigenmodes and distinct manifestation of strong coupling in the linear and nonlinear response. While in linear reflectivity the intensity of the two strongly-coupled branches is essentially symmetric and well explained by their respective localized or propagative components, the second harmonic signal presents a strong asymmetry. Analyzing it in detail, we reveal the importance of interference effects between the nonlinear polarization terms originating in the bulk and in the phonon polariton modes.
cond-mat.mes-hall, physics.optics
Razdolski, Ilya
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Passler, Nikolai Christian
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Gubbin, Christopher R.
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Winta, Christopher J.
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Cernansky, Robert
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Martini, Francesco
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Politi, Alberto
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Maier, Stefan A.
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Wolf, Martin
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Paarmann, Alexander
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Liberato, Simone De
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Razdolski, Ilya
74907f98-c805-4c27-9c6d-c89db462cda5
Passler, Nikolai Christian
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Gubbin, Christopher R.
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Winta, Christopher J.
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Cernansky, Robert
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Martini, Francesco
394af6a7-dbcf-4d7b-9add-f7ed80bfe020
Politi, Alberto
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Maier, Stefan A.
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Wolf, Martin
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Paarmann, Alexander
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Liberato, Simone De
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Razdolski, Ilya, Passler, Nikolai Christian, Gubbin, Christopher R., Winta, Christopher J., Cernansky, Robert, Martini, Francesco, Politi, Alberto, Maier, Stefan A., Wolf, Martin, Paarmann, Alexander and Liberato, Simone De
(2018)
Second harmonic generation from strongly coupled localized and propagating phonon-polariton modes.
Physical Review B, 98, [125425].
(doi:10.1103/PhysRevB.98.125425).
Abstract
We experimentally investigate second harmonic generation from strongly coupled localized and propagative phonon polariton modes in arrays of silicon carbide nanopillars. Our results clearly demonstrate the hybrid nature of the system's eigenmodes and distinct manifestation of strong coupling in the linear and nonlinear response. While in linear reflectivity the intensity of the two strongly-coupled branches is essentially symmetric and well explained by their respective localized or propagative components, the second harmonic signal presents a strong asymmetry. Analyzing it in detail, we reveal the importance of interference effects between the nonlinear polarization terms originating in the bulk and in the phonon polariton modes.
Text
Razdolski_SHG_SPhP_coupling_R1_1
- Accepted Manuscript
More information
Accepted/In Press date: 6 September 2018
e-pub ahead of print date: 26 September 2018
Additional Information:
7 pages, 4 figures
Keywords:
cond-mat.mes-hall, physics.optics
Identifiers
Local EPrints ID: 423138
URI: http://eprints.soton.ac.uk/id/eprint/423138
ISSN: 1550-235X
PURE UUID: e09af261-835f-45a1-9af0-8635564860e5
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Date deposited: 19 Sep 2018 11:04
Last modified: 16 Mar 2024 04:17
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Contributors
Author:
Ilya Razdolski
Author:
Nikolai Christian Passler
Author:
Christopher R. Gubbin
Author:
Christopher J. Winta
Author:
Robert Cernansky
Author:
Francesco Martini
Author:
Stefan A. Maier
Author:
Martin Wolf
Author:
Alexander Paarmann
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