Tetradymites as Natural Hyperbolic Materials for the Near-Infrared to Visible

Esslinger, Moritz; Vogelgesang, Ralf; Talebi, Nahid; Khunsin, Worawut; Gehring, Pascal; Zuani, Stefano De; Gompf, Bruno; Kern, Klaus

doi:10.1021/ph500296e

Cited by 128 publications

(109 citation statements)

References 63 publications

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“…There are many different natural bulk HM such as hexagonal boron nitride and tetradymites, which have hyperbolic bands in the visible, near-infrared or inrared regime. For an overview of different natural HM listing the different respective hyperbolic bands, we refer the reader to the references [28][29][30][31][32]. Apart from natural HM, there also exists the possibility to artificially fabricate HMMs using nanostructuration methods.…”

Section: Hyperbolic Mediamentioning

confidence: 99%

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Near-Field Heat Transfer between Multilayer Hyperbolic Metamaterials

Biehs

Ben‐Abdallah

2016

Zeitschrift Für Naturforschung A

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Abstract:We review the near-field radiative heat flux between hyperbolic materials focusing on multilayer hyperbolic meta-materials. We discuss the formation of the hyperbolic bands, the impact of ordering of the multilayer slabs, as well as the impact of the first single layer on the heat transfer. Furthermore, we compare the contribution of surface modes to that of hyperbolic modes. Finally, we also compare the exact results with predictions from effective medium theory.

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Section: Hyperbolic Mediamentioning

confidence: 99%

“…On the other hand, for applications in the infrared, it is more beneficial to combine phononpolaritonic/semiconductor and dielectric components [17,[23][24][25][26][27]. Besides such hyperbolic meta-material (HMM) structures, there exist also quite a number of natural HM [28][29][30][31][32] for applications in the visible and infrared.…”

Section: Introductionmentioning

confidence: 99%

Near-Field Heat Transfer between Multilayer Hyperbolic Metamaterials

Biehs

Ben‐Abdallah

2016

Zeitschrift Für Naturforschung A

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“…Such systems are being intensively studied because they exhibit diverging density of states, enabling extreme Purcell factors to be achieved [10], and support negative refraction of power [8]. They are also being investigated for emissivity control engineering for solar energy applications [11,12]. The range of fundamental phenomena and applications achievable by metamaterials can be significantly expanded by actively tuning their effective electromagnetic parameters to enable dynamic control over their optical response.…”

Section: Introductionmentioning

confidence: 99%

Field-effect induced tunability in hyperbolic metamaterials

Papadakis

Atwater

2015

Phys. Rev. B

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We demonstrate that use of the field effect enables tuning of the effective optical parameters of a layered hyperbolic metamaterial at optical frequencies. Field effect gating electrically modulates the permittivity in transparent conductive oxides via changes in the carrier density. These permittivity changes lead to active modulation of the effective electromagnetic parameters along with active control of the anisotropic dispersion surface of hyperbolic metamaterials and enable the opening and closing of photonic band gaps. Tunability of effective electric permittivity and magnetic permeability also leads to topological transitions in the optical dispersion characteristics. KeywordsHyperbolic metamaterials (HMM), isofrequency contour, density of optical states, epsilon near zero (ENZ), epsilon near pole (ENP), field effect, transparent conductive oxide (TCO), indium tin oxide (ITO), metal-oxide-semiconductor (MOS)

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“…To date, hyperbolic media have been realized through artificial engineering in metal-dielectric multilayer systems having metallic in-plane and insulating inter-plane properties [35][36][37][38][39][40][41][42][43][44][45] . Such materials have hyperbolic dispersion surfaces for electromagnetic waves in a certain frequency range and, thus, exhibit unusual electromagnetic responses such as negative refraction and backward waves [46][47][48][49][50][51][52] .…”

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confidence: 99%

Theory of electromagnetic wave propagation in ferromagnetic Rashba conductor

Shibata

Takeuchi

Kohno

et al. 2018

Journal of Applied Physics

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We present a comprehensive study of various electromagnetic wave propagation phenomena in a ferromagnetic bulk Rashba conductor from the perspective of quantum mechanical transport. In this system, both the space inversion and time reversal symmetries are broken, as characterized by the Rashba field α and magnetization M , respectively. First, we present a general phenomenological analysis of electromagnetic wave propagation in media with broken space inversion and time reversal symmetries based on the dielectric tensor. The dependence of the dielectric tensor on the wave vector q and M are retained to first order. Then, we calculate the microscopic electromagnetic response of the current and spin of conduction electrons subjected to α and M , based on linear response theory and the Green's function method; the results are used to study the system optical properties. Firstly, it is found that a large α enhances the anisotropic properties of the system and enlarges the frequency range in which the electromagnetic waves have hyperbolic dispersion surfaces and exhibit unusual propagations known as negative refraction and backward waves. Secondly, we consider the electromagnetic cross-correlation effects (direct and inverse Edelstein effects) on the wave propagation. These effects stem from the lack of space inversion symmetry and yield q-linear off-diagonal components in the dielectric tensor. This induces a Rashba-induced birefringence, in which the polarization vector rotates around the vector (α × q). In the presence of M , which breaks time reversal symmetry, there arises an anomalous Hall effect and the dielectric tensor acquires off-diagonal components linear in M . For α M , these components yield the Faraday effect for the Faraday configuration q M , and the Cotton-Mouton effect for the Voigt configuration (q ⊥ M ). When α and M are noncollinear, M -and q-induced optical phenomena are possible, which include nonreciprocal directional dichroism in the Voigt configuration. In these nonreciprocal optical phenomena, a "toroidal moment," α × M , and a "quadrupole moment," αiMj + αjMi, play central roles. These phenomena are strongly enhanced at the spin-split transition edge in the electron band.

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Tetradymites as Natural Hyperbolic Materials for the Near-Infrared to Visible

Cited by 128 publications

References 63 publications

Near-Field Heat Transfer between Multilayer Hyperbolic Metamaterials

Near-Field Heat Transfer between Multilayer Hyperbolic Metamaterials

Field-effect induced tunability in hyperbolic metamaterials

Theory of electromagnetic wave propagation in ferromagnetic Rashba conductor

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