Crystal optics of absorbing and gyrotropic media

Grechushnikov, B. N.; Константинова, А. Ф.

doi:10.1016/0898-1221(88)90252-0

Cited by 21 publications

(21 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The fields of the DV surface wave in the partnering material A have similar characteristics to the fields associated with a singular form of planewave propagation called Voigt-wave propagation [22]. The existence of a Voigt wave for an unbounded anisotropic material is a consequence of the corresponding propagation matrix being non-diagonalizable [23][24][25][26]. The feature that distinguishes a Voigt wave from a conventional plane wave [4,27] is that the Voigt wave's amplitude depends on the product of an exponential function of the propagation distance and a linear function of the propagation distance, the latter being absent for a conventional plane wave.…”

Section: Introductionmentioning

confidence: 99%

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

2019

View full text Add to dashboard Cite

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 ε s A and ε t A , and (ii) material B which is an isotropic dielectric material with relative permittivity ε B , were numerically investigated by solving the corresponding canonical boundary-value problem. The two partnering materials are 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 ε s A and ε t A in the upper-half-complex plane, DV surface-wave propagation is only possible for large values of χ when |ε B | is very small. *

show abstract

Section: Introductionmentioning

confidence: 99%

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

2019

View full text Add to dashboard Cite

show abstract

“…Further work on singular axes has been reported e.g. in [30][31][32][33][34][35][36][37][38][39][40][41], but we feel that parts of the optics community have largely forgotten about singular axes. A recent analysis provided an in depth view of the spectral dispersion and possible degeneracies of the singular axes [42] for monoclinic gallia as model system.…”

Section: @ Rrlmentioning

confidence: 99%

Optically anisotropic media: New approaches to the dielectric function, singular axes, microcavity modes and Raman scattering intensities

Grundmann

Sturm

Kranert

et al. 2016

Physica Rapid Research Ltrs

View full text Add to dashboard Cite

Six out of seven crystal systems are optically anisotropic and birefringent. We review recent insight that biaxial crystals generally exhibit four singular axes (or exceptional points) which can pairwise degenerate for special cases. Planar anisotropic microcavities are discussed as effectively biaxial systems and we predict exceptional points and demonstrate experimentally partially coalesced eigenstates. Also the general form of the dielectric function of anisotropic crystals based on individual dipole oscillators for phonon and electronic resonance is discussed. The impact of birefringence on Raman scattering intensities has been historically either ignored or modeled incorrectly. A recent theory for uniaxial and biaxial crystals explains experimental Raman scattering intensities for excitation off the principal directions without free parameters, allowing the unambiguous determination of the Raman tensor components. The above points are demonstrated and relevant in particular for the currently technologically important materials GaN, ZnO (uniaxial) and β‐Ga2O3 (biaxial).

show abstract

“…The fields of the DTV surface wave in the anisotropic partnering material have certain characteristics in common with the fields associated with a singular form of planewave propagation called Voigt-wave propagation [18][19][20]. A Voigt wave can exist when the planewave propagation matrix is non-diagonalizable [21][22][23][24]. Unlike conventional plane waves [25,26], the decay of Voigt waves is characterized by the product of an exponential function of the propagation distance and a linear function of the propagation distance.…”

Section: Introductionmentioning

confidence: 99%

Theory of Dyakonov–Tamm surface waves featuring Dyakonov–Tamm–Voigt surface waves

Zhou

Mackay

Lakhtakia

2020

Optik

View full text Add to dashboard Cite

The propagation of Dyakonov-Tamm (DT) surface waves guided by the planar interface of two nondissipative materials A and B was investigated theoretically and numerically, via the corresponding canonical boundary-value problem. Material A is a homogeneous uniaxial dielectric material whose optic axis lies at an angle χ relative to the interface plane. Material B is an isotropic dielectric material that is periodically nonhomogeneous in the direction normal to the interface. The special case was considered in which the propagation matrix for material A is non-diagonalizable because the corresponding surface wave -named the Dyakonov-Tamm-Voigt (DTV) surface wave -has unusual localization characteristics. The decay of the DTV surface wave is given by the product of a linear function and an exponential function of distance from the interface in material A; in contrast, the fields of conventional DT surface waves decay only exponentially with distance from the interface. Numerical studies revealed that multiple DT surface waves can exist for a fixed propagation direction in the interface plane, depending upon the constitutive parameters of materials A and B. When regarded as functions of the angle of propagation in the interface plane, the multiple DT surface-wave solutions can be organized as continuous branches. A larger number of DT solution branches exist when the degree of anisotropy of material A is greater. If χ = 0 • then a solitary DTV solution exists for a unique propagation direction on each DT branch solution. If χ > 0 • , then no DTV solutions exist. As the degree of nonhomogeneity of material B decreases, the number of DT solution branches decreases. For most propagation directions in the interface plane, no solutions exist in the limiting case wherein the degree of nonhomogeneity approaches zero; but one solution persists provided that the direction of propagation falls within the angular existence domain of the corresponding Dyakonov surface wave.

show abstract

Crystal optics of absorbing and gyrotropic media

Cited by 21 publications

References 10 publications

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

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

Optically anisotropic media: New approaches to the dielectric function, singular axes, microcavity modes and Raman scattering intensities

Theory of Dyakonov–Tamm surface waves featuring Dyakonov–Tamm–Voigt surface waves

Contact Info

Product

Resources

About