Light Enhanced Flexoelectric Polarization in Waveguiding Structures with a Smectic A Liquid Crystal (SALC) Layer

Lembrikov, B. I.; Ianetz, D.; Ben-Ezra, Y.

doi:10.1109/icton.2019.8840154

Cited by 1 publication

(5 citation statements)

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“…Expressions (28) and (52)-(55) and Figure 11 show that the orientational and hydrodynamic excitations in SmALC core of the MIM waveguide enhanced by the SPPs are spatially localized and reach their maximum value during the time of the energy exchange between the interacting SPPs.…”

Section: The Spectral Dependence Of the Localization Factor Fmentioning

confidence: 99%

“…Substituting expressions (27) and (28) The normalized smectic layer displacement u x, z, t ¼ t 0 ðÞ for the optical wavelength λ opt ¼ 1:6 μm. (16), and (27) into wave equation (14), taking into account the dispersion relation (22), neglecting the terms ∂ 2 E SA1,20 =∂t 2 according to condition (31), combining the phase-matched terms with the frequencies ω 1,2 , and dividing the real and imaginary parts, we derive the equations for the SVA magnitudes E SA1,20 t ðÞ jj and phases θ SA1,2 t ðÞ .…”

Section: Nonlinear Interaction Of Spps In the Mim Waveguidementioning

confidence: 99%

“…and the homeotropically oriented SmALC with the layer plane parallel to the claddings are shown in Figure 1a and b, respectively. The nonlinear optical phenomena in SmALC such as a light self-focusing, selftrapping, SPM, SLS, and FWM based on the specific mechanism of the third-order optical nonlinearity related to the smectic layer normal displacement had been investigated theoretically [16][17][18][19][20][21][22][23][24][25][26][27][28]. In particular it has been shown that at the interface of a metal and SmALC, the counter-propagating SPPs created the dynamic grating of the smectic layer normal displacement ux , z, t ðÞ , and the SLS of the interfering SPPs occurred [22,23,26].…”

Section: Introductionmentioning

confidence: 99%

“…We also evaluated the SPP-induced smectic layer displacement and SmALC hydrodynamic velocity. We have shown that the high-frequency localized electric field can occur in the MIM waveguide with the SmALC core due to the flexoelectric effect [28]. The chapter is constructed as follows.…”

Section: Introductionmentioning

confidence: 99%

“…We evaluate now the hydrodynamic flow velocity in the MIM wave guide core. Substituting expression (28) into Eqs. (1) and (6), we obtain…”

mentioning

confidence: 99%

See 4 more Smart Citations

Stimulated Scattering of Surface Plasmon Polaritons in a Plasmonic Waveguide with a Smectic A Liquid Crystalline Core

Lembrikov¹,

Ianetz²,

Ezra³

2020

Nanoplasmonics

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We considered theoretically the nonlinear interaction of surface plasmon polaritons (SPPs) in a metal-insulator-metal (MIM) plasmonic waveguide with a smectic liquid crystalline core. The interaction is related to the specific cubic optical nonlinearity mechanism caused by smectic layer oscillations in the SPP electric field. The interfering SPPs create the localized dynamic grating of the smectic layer strain that results in the strong stimulated scattering of SPP modes in the MIM waveguide. We solved simultaneously the smectic layer equation of motion in the SPP electric field and the Maxwell equations for the interacting SPPs. We evaluated the SPP mode slowly varying amplitudes (SVAs), the smectic layer dynamic grating amplitude, and the hydrodynamic velocity of the flow in a smectic A liquid crystal (SmALC).

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Section: The Spectral Dependence Of the Localization Factor Fmentioning

confidence: 99%