Non-Hermitian heterostructure for two-parameter sensing

Jieun Yim; Han Zhao; Bikashkali Midya; Liang Feng

doi:10.1364/ol.44.001626

Non-Hermitian heterostructure for two-parameter sensing

Jieun Yim, Han Zhao, Bikashkali Midya, Liang Feng

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

Non-Hermitian systems at exceptional point (EP) degeneracy are demonstrated to be highly sensitive to environmental perturbation. Here, we propose and theoretically investigate a novel multilayered heterostructure favoring double EPs for a unique set of material parameters at which forward- and backward-reflection coefficients vanish, respectively. Such an EP heterostructure is shown to scatter off light when system parameters are perturbed away from the degeneracies due to the effect of ambient temperature and mechanical stress fluctuations. The proposed structure is conducive to manipulating optical responses for two mutually independent parameters sensing.

Original language	English (US)
Pages (from-to)	1626
Journal	Optics Letters
Volume	44
Issue number	7
DOIs	https://doi.org/10.1364/ol.44.001626
State	Published - Mar 21 2019
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2021-03-12
Acknowledged KAUST grant number(s): OSR-2016-CRG5-2950-04
Acknowledgements: National Science Foundation (NSF) (CBET 1706050, ECCS-1811393, IIP-1718177); King Abdullah University of Science and Technology (KAUST) (OSR-2016-CRG5-2950-04); Army Research Office (ARO) (W911NF-15-1-0152).
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1364/ol.44.001626

Cite this

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title = "Non-Hermitian heterostructure for two-parameter sensing",

abstract = "Non-Hermitian systems at exceptional point (EP) degeneracy are demonstrated to be highly sensitive to environmental perturbation. Here, we propose and theoretically investigate a novel multilayered heterostructure favoring double EPs for a unique set of material parameters at which forward- and backward-reflection coefficients vanish, respectively. Such an EP heterostructure is shown to scatter off light when system parameters are perturbed away from the degeneracies due to the effect of ambient temperature and mechanical stress fluctuations. The proposed structure is conducive to manipulating optical responses for two mutually independent parameters sensing.",

author = "Jieun Yim and Han Zhao and Bikashkali Midya and Liang Feng",

note = "KAUST Repository Item: Exported on 2021-03-12 Acknowledged KAUST grant number(s): OSR-2016-CRG5-2950-04 Acknowledgements: National Science Foundation (NSF) (CBET 1706050, ECCS-1811393, IIP-1718177); King Abdullah University of Science and Technology (KAUST) (OSR-2016-CRG5-2950-04); Army Research Office (ARO) (W911NF-15-1-0152). This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

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doi = "10.1364/ol.44.001626",

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T1 - Non-Hermitian heterostructure for two-parameter sensing

AU - Yim, Jieun

AU - Zhao, Han

AU - Midya, Bikashkali

AU - Feng, Liang

N1 - KAUST Repository Item: Exported on 2021-03-12 Acknowledged KAUST grant number(s): OSR-2016-CRG5-2950-04 Acknowledgements: National Science Foundation (NSF) (CBET 1706050, ECCS-1811393, IIP-1718177); King Abdullah University of Science and Technology (KAUST) (OSR-2016-CRG5-2950-04); Army Research Office (ARO) (W911NF-15-1-0152). This publication acknowledges KAUST support, but has no KAUST affiliated authors.

PY - 2019/3/21

Y1 - 2019/3/21

N2 - Non-Hermitian systems at exceptional point (EP) degeneracy are demonstrated to be highly sensitive to environmental perturbation. Here, we propose and theoretically investigate a novel multilayered heterostructure favoring double EPs for a unique set of material parameters at which forward- and backward-reflection coefficients vanish, respectively. Such an EP heterostructure is shown to scatter off light when system parameters are perturbed away from the degeneracies due to the effect of ambient temperature and mechanical stress fluctuations. The proposed structure is conducive to manipulating optical responses for two mutually independent parameters sensing.

AB - Non-Hermitian systems at exceptional point (EP) degeneracy are demonstrated to be highly sensitive to environmental perturbation. Here, we propose and theoretically investigate a novel multilayered heterostructure favoring double EPs for a unique set of material parameters at which forward- and backward-reflection coefficients vanish, respectively. Such an EP heterostructure is shown to scatter off light when system parameters are perturbed away from the degeneracies due to the effect of ambient temperature and mechanical stress fluctuations. The proposed structure is conducive to manipulating optical responses for two mutually independent parameters sensing.

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UR - https://www.osapublishing.org/abstract.cfm?URI=ol-44-7-1626

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DO - 10.1364/ol.44.001626

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SP - 1626

JO - Optics Letters

JF - Optics Letters

IS - 7

ER -

Non-Hermitian heterostructure for two-parameter sensing

Abstract

Bibliographical note

ASJC Scopus subject areas

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