On Dyakonov–Voigt surface waves guided by the planar interface of dissipative materials

Chenzhang Zhou, Tom G. Mackay, Akhlesh Lakhtakia

Research output: Contribution to journalArticle

Abstract

Dyakonov–Voigt (DV) surface waves guided by the planar interface of (i) material A, which is a uniaxial dielectric material specified by a relative permittivity dyadic with eigenvalues εA s and εA t , and (ii) material B, which is an isotropic dielectric material with relative permittivity εB, are numerically investigated by solving the corresponding canonical boundary-value problem. The two partnering materials were generally dissipative, with the optic axis of material A being inclined at the angle χ ∈ [0, 90] relative to the interface plane. No solutions of the dispersion equation for DV surface waves exist when χ = 90. Also, no solutions exist for χ ∈ (0, 90), when both partnering materials are nondissipative. For χ ∈ [0, 90), the degree of dissipation of material A has a profound effect on the phase speeds, propagation lengths, and penetration depths of the DV surface waves. For mid-range values of χ, DV surface waves with negative phase velocities were found. For fixed values of εA s and εA t in the upper-half-complex plane, DV surface-wave propagation is only possible for large values of χ when |εB| is very small.

Original languageEnglish (US)
Pages (from-to)3218-3225
Number of pages8
JournalJournal of the Optical Society of America B: Optical Physics
Volume36
Issue number11
DOIs
StatePublished - Jan 1 2019

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surface waves
permittivity
dyadics
phase velocity
boundary value problems
wave propagation
eigenvalues
penetration
dissipation
optics
propagation

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics

Cite this

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abstract = "Dyakonov–Voigt (DV) surface waves guided by the planar interface of (i) material A, which is a uniaxial dielectric material specified by a relative permittivity dyadic with eigenvalues εA s and εA t , and (ii) material B, which is an isotropic dielectric material with relative permittivity εB, are numerically investigated by solving the corresponding canonical boundary-value problem. The two partnering materials were generally dissipative, with the optic axis of material A being inclined at the angle χ ∈ [0◦, 90◦] relative to the interface plane. No solutions of the dispersion equation for DV surface waves exist when χ = 90◦. Also, no solutions exist for χ ∈ (0◦, 90◦), when both partnering materials are nondissipative. For χ ∈ [0◦, 90◦), the degree of dissipation of material A has a profound effect on the phase speeds, propagation lengths, and penetration depths of the DV surface waves. For mid-range values of χ, DV surface waves with negative phase velocities were found. For fixed values of εA s and εA t in the upper-half-complex plane, DV surface-wave propagation is only possible for large values of χ when |εB| is very small.",
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On Dyakonov–Voigt surface waves guided by the planar interface of dissipative materials. / Zhou, Chenzhang; Mackay, Tom G.; Lakhtakia, Akhlesh.

In: Journal of the Optical Society of America B: Optical Physics, Vol. 36, No. 11, 01.01.2019, p. 3218-3225.

Research output: Contribution to journalArticle

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