Goos–Hänchen and Imbert–Fedorov shifts at the interface of ordinary dielectric and topological insulator

Liu, Fen; Xu, Jingping; Song, Guowen; Yang, Yaping

doi:10.1364/josab.30.001167

Cited by 29 publications

(13 citation statements)

References 31 publications

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“…As described in detail elsewhere [23], the values of q c are determined by combining Eqs. (3) and (4). This provides a system of homogeneous equations that are linear in the six components of ̲ E c and ̲ H c ; the determinant of this system delivers a quartic polynomial, the roots of which yield four values of q c .…”

Section: Boundary-value Problem For Dyakonov-wave Propagationmentioning

confidence: 99%

“…The discovery of topological insulators [1], such as the chalcogenides Bi 2 Se 3 , Bi 2 Te 3 , and Sb 2 Te 3 , has prompted a flurry of research activity, much of which has been directed toward revealing their optical properties [2][3][4]. To this end, the theory underpinning optical scattering from spheres made of topological insulators was recently developed [5].…”

Section: Introductionmentioning

confidence: 99%

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Nonreciprocal Dyakonov-wave propagation supported by topological insulators

Mackay

Lakhtakia

2016

J. Opt. Soc. Am. B

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The propagation of Dyakonov waves guided by the planar interface of a columnar thin film and a topological insulator was investigated by numerically solving the associated canonical boundary-value problem. The topological insulator was modeled as an isotropic dielectric material endowed with a nonzero surface admittance. The propagation directions for the Dyakonov waves, as well as the decay constants and phase speeds of the waves, were significantly modulated by varying the magnitude of the surface admittance. Most significantly, a Dyakonov wave propagating along the direction of a vector ̲ u has a different phase speed and different decay constants as compared with the Dyakonov wave which propagates along the direction of −̲ u. This nonreciprocity, with respect to interchanging the direction of Dyakonov-wave propagation, is not exhibited when the topological insulator is replaced by an isotropic dielectric material of the same refractive index but with a nonzero surface conductivity instead of a surface admittance.

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Section: Boundary-value Problem For Dyakonov-wave Propagationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nonreciprocal Dyakonov-wave propagation supported by topological insulators

Mackay

Lakhtakia

2016

J. Opt. Soc. Am. B

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“…Although optical scattering by isotropic dielectric materials, i.e., ε ¼ εðû xûx þû yûy þû zûz Þ, with TISS has been investigated theoretically [4][5][6][7] as well as experimentally, 2,8 this communication is possibly the first report of optical scattering by an anisotropic dielectric material with TISS. The existence of such materials is deemed possible because the isotropic materials with TISS are chalcogenides, 1,2 columnar thin films (CTFs) of other chalcogenides have been fabricated, 9 and CTFs function as anisotropic dielectric materials at sufficiently low frequencies.…”

Section: Introductionmentioning

confidence: 96%

Left/right asymmetry in reflection and transmission by a planar anisotropic dielectric slab with topologically insulating surface states

Lakhtakia

Mackay

2016

J. Nanophoton

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Akhlesh Lakhtakia, Tom G. Mackay, "Left/right asymmetry in reflection and transmission by a planar anisotropic dielectric slab with topologically insulating surface states," J. Nanophoton. 10(2), 020501 (2016), doi: 10.1117/1.JNP.10.020501. Abstract. The reflection and transmission of plane waves by a homogeneous anisotropic dielectric slab-as represented by a columnar thin film-with topologically insulating surface states was theoretically investigated. Copolarized and cross-polarized reflectances and transmittances were calculated by solving the associated boundary-value problem. Numerical calculations revealed that all four reflectances and all four transmittances were asymmetric with respect to reversal of projection of the propagation direction of the incident plane wave on the illuminated surface of the slab. This left/right reflection and transmission asymmetry arises due to the combined effects of the slab's anisotropy and surface states. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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“…Thus, a diverse variety of microstructures has been designed by researchers to amplify GH shift. For example, negative refractive index materials [ 5 ], weak absorption medium dielectric slab [ 6 ], symmetrical metal-cladding optical waveguide [ 7 ] and periodic structure [ 8 ], photonic crystal [ 9 ], etc. However, after the internal parameters of these traditional structures are fixed, it is difficult to achieve passive regulation.…”

Section: Introductionmentioning

confidence: 99%

Tunable Goos-Hänchen Shift Surface Plasmon Resonance Sensor Based on Graphene-hBN Heterostructure

Liu

Jiang

et al. 2021

Biosensors

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In this paper, a bimetallic sensor based on graphene-hexagonal boron nitride (hBN) heterostructure is theoretically studied. The sensitivity of the sensor can be improved by enhancing the Goos–Hänchen (GH) shift in the infrared band. The theoretical results show that adjusting the Fermi level, the number of graphene layers and the thickness of hBN, a GH shift of 182.09 λ can be obtained. Moreover, sensitivity of 2.02 × 105 λ/RIU can be achieved with monolayer graphene, the thickness of gold layer is 20 nm, silver layer is 15 nm, and the hBN thickness of 492 nm. This heterogeneous infrared sensor has the advantages of high sensitivity and strong stability. The research results will provide a theoretical basis for the design of a new high-sensitivity infrared band sensor.

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Goos–Hänchen and Imbert–Fedorov shifts at the interface of ordinary dielectric and topological insulator

Cited by 29 publications

References 31 publications

Nonreciprocal Dyakonov-wave propagation supported by topological insulators

Nonreciprocal Dyakonov-wave propagation supported by topological insulators

Left/right asymmetry in reflection and transmission by a planar anisotropic dielectric slab with topologically insulating surface states

Tunable Goos-Hänchen Shift Surface Plasmon Resonance Sensor Based on Graphene-hBN Heterostructure

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