Phase Transition in ℘T Symmetric Active Plasmonic Systems

Marios Mattheakis, Thomas Oikonomou, Mario I. Molina, George P. Tsironis

    Research output: Contribution to journalArticle

    7 Citations (Scopus)

    Abstract

    Surface plasmon polaritons (SPPs) are coherent electromagnetic surface waves trapped on an insulator-conductor interface. The SPPs decay exponentially along the propagation due to conductor losses, restricting the SPPs propagation length to few microns. Gain materials can be used to counterbalance the aforementioned losses. We provide an exact expression for the gain, in terms of the optical properties of the interface, for which the losses are eliminated. In addition, we show that systems characterized by lossless SPP propagation are related to ℘T symmetric systems. Furthermore, we derive an analytical critical value of the gain describing a phase transition between lossless and prohibited SPPs propagation. The regime of the aforementioned propagation can be directed by the optical properties of the system under scrutiny. Finally, we perform COMSOL simulations verifying the theoretical findings.

    Original languageEnglish
    Article number7298367
    JournalIEEE Journal on Selected Topics in Quantum Electronics
    Volume22
    Issue number5
    DOIs
    Publication statusPublished - Sep 1 2016

    Fingerprint

    polaritons
    Phase transitions
    propagation
    conductors
    Optical properties
    counterbalances
    electromagnetic surface waves
    optical properties
    Electromagnetic waves
    Surface waves
    insulators
    decay
    simulation

    Keywords

    • active/gain materials
    • lossless propagation
    • PT symmetry
    • Surface plasmons polaritons

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Atomic and Molecular Physics, and Optics

    Cite this

    Phase Transition in ℘T Symmetric Active Plasmonic Systems. / Mattheakis, Marios; Oikonomou, Thomas; Molina, Mario I.; Tsironis, George P.

    In: IEEE Journal on Selected Topics in Quantum Electronics, Vol. 22, No. 5, 7298367, 01.09.2016.

    Research output: Contribution to journalArticle

    Mattheakis, Marios ; Oikonomou, Thomas ; Molina, Mario I. ; Tsironis, George P. / Phase Transition in ℘T Symmetric Active Plasmonic Systems. In: IEEE Journal on Selected Topics in Quantum Electronics. 2016 ; Vol. 22, No. 5.
    @article{d54ba4f4463e4f9195dca42a4a3818d9,
    title = "Phase Transition in ℘T Symmetric Active Plasmonic Systems",
    abstract = "Surface plasmon polaritons (SPPs) are coherent electromagnetic surface waves trapped on an insulator-conductor interface. The SPPs decay exponentially along the propagation due to conductor losses, restricting the SPPs propagation length to few microns. Gain materials can be used to counterbalance the aforementioned losses. We provide an exact expression for the gain, in terms of the optical properties of the interface, for which the losses are eliminated. In addition, we show that systems characterized by lossless SPP propagation are related to ℘T symmetric systems. Furthermore, we derive an analytical critical value of the gain describing a phase transition between lossless and prohibited SPPs propagation. The regime of the aforementioned propagation can be directed by the optical properties of the system under scrutiny. Finally, we perform COMSOL simulations verifying the theoretical findings.",
    keywords = "active/gain materials, lossless propagation, PT symmetry, Surface plasmons polaritons",
    author = "Marios Mattheakis and Thomas Oikonomou and Molina, {Mario I.} and Tsironis, {George P.}",
    year = "2016",
    month = "9",
    day = "1",
    doi = "10.1109/JSTQE.2015.2490018",
    language = "English",
    volume = "22",
    journal = "IEEE Journal of Selected Topics in Quantum Electronics",
    issn = "1077-260X",
    publisher = "Institute of Electrical and Electronics Engineers Inc.",
    number = "5",

    }

    TY - JOUR

    T1 - Phase Transition in ℘T Symmetric Active Plasmonic Systems

    AU - Mattheakis, Marios

    AU - Oikonomou, Thomas

    AU - Molina, Mario I.

    AU - Tsironis, George P.

    PY - 2016/9/1

    Y1 - 2016/9/1

    N2 - Surface plasmon polaritons (SPPs) are coherent electromagnetic surface waves trapped on an insulator-conductor interface. The SPPs decay exponentially along the propagation due to conductor losses, restricting the SPPs propagation length to few microns. Gain materials can be used to counterbalance the aforementioned losses. We provide an exact expression for the gain, in terms of the optical properties of the interface, for which the losses are eliminated. In addition, we show that systems characterized by lossless SPP propagation are related to ℘T symmetric systems. Furthermore, we derive an analytical critical value of the gain describing a phase transition between lossless and prohibited SPPs propagation. The regime of the aforementioned propagation can be directed by the optical properties of the system under scrutiny. Finally, we perform COMSOL simulations verifying the theoretical findings.

    AB - Surface plasmon polaritons (SPPs) are coherent electromagnetic surface waves trapped on an insulator-conductor interface. The SPPs decay exponentially along the propagation due to conductor losses, restricting the SPPs propagation length to few microns. Gain materials can be used to counterbalance the aforementioned losses. We provide an exact expression for the gain, in terms of the optical properties of the interface, for which the losses are eliminated. In addition, we show that systems characterized by lossless SPP propagation are related to ℘T symmetric systems. Furthermore, we derive an analytical critical value of the gain describing a phase transition between lossless and prohibited SPPs propagation. The regime of the aforementioned propagation can be directed by the optical properties of the system under scrutiny. Finally, we perform COMSOL simulations verifying the theoretical findings.

    KW - active/gain materials

    KW - lossless propagation

    KW - PT symmetry

    KW - Surface plasmons polaritons

    UR - http://www.scopus.com/inward/record.url?scp=84963650346&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84963650346&partnerID=8YFLogxK

    U2 - 10.1109/JSTQE.2015.2490018

    DO - 10.1109/JSTQE.2015.2490018

    M3 - Article

    AN - SCOPUS:84963650346

    VL - 22

    JO - IEEE Journal of Selected Topics in Quantum Electronics

    JF - IEEE Journal of Selected Topics in Quantum Electronics

    SN - 1077-260X

    IS - 5

    M1 - 7298367

    ER -