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1. Hybrid Silicon-Phase Change Nanoantenna for Surface ... - Hybrid Silicon-Phase Change Nanoantenna for Surface Plasmon Polariton Routing Pavel Trofimov 1, Andrey Bogdanov , Ivan

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  • Hybrid Silicon-Phase Change Nanoantenna for Surface Plasmon Polariton Routing

    Pavel Trofimov 1, Andrey Bogdanov 1, Ivan Sinev 1

    1.

    Sinev et al. ACS Photonics 2020 Kuznetsov et al.

    Scientific Reports 2012 Wang et al. Nature Photonics 2016

    Deringer et al. JARA-FIT Annual Report 2014

    Phase-change materials Dielectric resonators

    Wuttig et al.

    Nature Photonics 2017

    Summary Phase-change

    materials Surface waves

    routing SPP all-optical

    switch Design of hybrid

    nanoantenna Hybrid resonators

    laser switching

    Galaretta et al. Optica 2020

  • Dielectric resonators

    Summary Phase-change

    materials Surface waves

    routing SPP all-optical

    switch Design of hybrid

    nanoantenna Hybrid resonators

    laser switching

    Hybrid Silicon-Phase Change Nanoantenna for Surface Plasmon Polariton Routing

    Pavel Trofimov 1, Andrey Bogdanov 1, Ivan Sinev 1

    1.

  • Summary Phase-change

    materials Surface waves

    routing SPP all-optical

    switch Design of hybrid

    nanoantenna Hybrid resonators

    laser switching

    Sinev et al. Laser Photonics Review 2017, 11, 1700168

    Hybrid Silicon-Phase Change Nanoantenna for Surface Plasmon Polariton Routing

    Pavel Trofimov 1, Andrey Bogdanov 1, Ivan Sinev 1

    1.

  • Summary Phase-change

    materials Surface waves

    routing SPP all-optical

    switch Design of hybrid

    nanoantenna Hybrid resonators

    laser switching

    Backward SPP z=-1 | Forward SPP z=1

    z = (my − iκpx)/(kSPP pz)

    ISPP(φ0) ∼ (1 − (Re z) cos φ0) 2 + (Im z)2 cos2 φ0

    Hybrid Silicon-Phase Change Nanoantenna for Surface Plasmon Polariton Routing

    Pavel Trofimov 1, Andrey Bogdanov 1, Ivan Sinev 1

    1.

  • Summary Phase-change

    materials Surface waves

    routing SPP all-optical

    switch Design of hybrid

    nanoantenna Hybrid resonators

    laser switching

    Silicon Sphere

    Calculated switching

    resolution λ/δλ:

    20 < 60

    Directivity Forward Directivity Backward Resolution Resonance wavelength

    H ei

    g h

    t, μ

    m

    Diameter, μm Diameter, μm

    Silicon Cylinder

    Hybrid Silicon-Phase Change Nanoantenna for Surface Plasmon Polariton Routing

    Pavel Trofimov 1, Andrey Bogdanov 1, Ivan Sinev 1

    1.

  • Summary Phase-change

    materials Surface waves

    routing SPP all-optical

    switch Design of hybrid

    nanoantenna Hybrid resonators

    laser switching

    Cylinder height 360 nm

    Diameter 205 nm,

    Resonant Wavelength 949 nm

    D ia

    m et

    er , μ

    m D

    ia m

    et er

    , μ

    m

    D ia

    m et

    er , μ

    m D

    ia m

    et er

    , μ

    m

    -50 0 50

    -50 0 50-50 0 50

    -50 0 50

    Wavelength detuning, nm Wavelength detuning, nm

    D ir

    e ct

    iv it

    y Fo

    rw ar

    d D

    ir e

    ct iv

    it y

    B ac

    kw ar

    d

    Si + Amorphous GSST Si + Crystalline GSST

    Hybrid Silicon-Phase Change Nanoantenna for Surface Plasmon Polariton Routing

    Pavel Trofimov 1, Andrey Bogdanov 1, Ivan Sinev 1

    1.

  • Summary Phase-change

    materials Surface waves

    routing SPP all-optical

    switch Design of hybrid

    nanoantenna Hybrid resonators

    laser switching

    Si m

    u la

    ti o

    n Ex

    p e

    ri m

    e n

    t

    Femtosecond

    Laser pulses

    M u

    lt ile

    ve l s

    w it

    ch in

    g

    Hybrid Silicon-Phase Change Nanoantenna for Surface Plasmon Polariton Routing

    Pavel Trofimov 1, Andrey Bogdanov 1, Ivan Sinev 1

    1.

    Galaretta et al. Optica 2020

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