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Selective enhancement of topologically induced interface states in a dielectric resonator chain

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Selective enhancement of topologically induced interface states in a dielectric resonator chain. / Poli, Charles; Bellec, Matthieu; Kuhl, Ulrich et al.
In: Nature Communications, Vol. 6, 6710, 02.04.2015.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Poli, C, Bellec, M, Kuhl, U, Mortessagne, F & Schomerus, H 2015, 'Selective enhancement of topologically induced interface states in a dielectric resonator chain', Nature Communications, vol. 6, 6710. https://doi.org/10.1038/ncomms7710

APA

Poli, C., Bellec, M., Kuhl, U., Mortessagne, F., & Schomerus, H. (2015). Selective enhancement of topologically induced interface states in a dielectric resonator chain. Nature Communications, 6, Article 6710. https://doi.org/10.1038/ncomms7710

Vancouver

Poli C, Bellec M, Kuhl U, Mortessagne F, Schomerus H. Selective enhancement of topologically induced interface states in a dielectric resonator chain. Nature Communications. 2015 Apr 2;6:6710. doi: 10.1038/ncomms7710

Author

Poli, Charles ; Bellec, Matthieu ; Kuhl, Ulrich et al. / Selective enhancement of topologically induced interface states in a dielectric resonator chain. In: Nature Communications. 2015 ; Vol. 6.

Bibtex

@article{07b9030791364951aac69fbf6bf06cf2,
title = "Selective enhancement of topologically induced interface states in a dielectric resonator chain",
abstract = "The recent realization of topological phases in insulators and superconductors has advanced the search for robust quantum technologies. The prospect to implement the underlying topological features controllably has given incentive to explore optical platforms for analogous realizations. Here we realize a topologically induced defect state in a chain of dielectric microwave resonators and show that the functionality of the system can be enhanced by supplementing topological protection with non-hermitian symmetries that do not have an electronic counterpart. We draw on a characteristic topological feature of the defect state, namely, that it breaks a sublattice symmetry. This isolates the state from losses that respect parity-time symmetry, which enhances its visibility relative to all other states both in the frequency and in the time domain. This mode selection mechanism naturally carries over to a wide range of topological and parity-time symmetric optical platforms, including couplers, rectifiers and lasers.",
keywords = "physical sciences, applied physics, condensed matter",
author = "Charles Poli and Matthieu Bellec and Ulrich Kuhl and Fabrice Mortessagne and Henning Schomerus",
year = "2015",
month = apr,
day = "2",
doi = "10.1038/ncomms7710",
language = "English",
volume = "6",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "Nature Publishing Group",

}

RIS

TY - JOUR

T1 - Selective enhancement of topologically induced interface states in a dielectric resonator chain

AU - Poli, Charles

AU - Bellec, Matthieu

AU - Kuhl, Ulrich

AU - Mortessagne, Fabrice

AU - Schomerus, Henning

PY - 2015/4/2

Y1 - 2015/4/2

N2 - The recent realization of topological phases in insulators and superconductors has advanced the search for robust quantum technologies. The prospect to implement the underlying topological features controllably has given incentive to explore optical platforms for analogous realizations. Here we realize a topologically induced defect state in a chain of dielectric microwave resonators and show that the functionality of the system can be enhanced by supplementing topological protection with non-hermitian symmetries that do not have an electronic counterpart. We draw on a characteristic topological feature of the defect state, namely, that it breaks a sublattice symmetry. This isolates the state from losses that respect parity-time symmetry, which enhances its visibility relative to all other states both in the frequency and in the time domain. This mode selection mechanism naturally carries over to a wide range of topological and parity-time symmetric optical platforms, including couplers, rectifiers and lasers.

AB - The recent realization of topological phases in insulators and superconductors has advanced the search for robust quantum technologies. The prospect to implement the underlying topological features controllably has given incentive to explore optical platforms for analogous realizations. Here we realize a topologically induced defect state in a chain of dielectric microwave resonators and show that the functionality of the system can be enhanced by supplementing topological protection with non-hermitian symmetries that do not have an electronic counterpart. We draw on a characteristic topological feature of the defect state, namely, that it breaks a sublattice symmetry. This isolates the state from losses that respect parity-time symmetry, which enhances its visibility relative to all other states both in the frequency and in the time domain. This mode selection mechanism naturally carries over to a wide range of topological and parity-time symmetric optical platforms, including couplers, rectifiers and lasers.

KW - physical sciences

KW - applied physics

KW - condensed matter

U2 - 10.1038/ncomms7710

DO - 10.1038/ncomms7710

M3 - Journal article

VL - 6

JO - Nature Communications

JF - Nature Communications

SN - 2041-1723

M1 - 6710

ER -