Beam splitting and unidirectional cloaking using anisotropic zero-index photonic crystals

Yang, Yuting; Jia, Ziyuan; Xu, Tao; Luo, Jie; Lai, Yun; Hang, Zhi Hong

doi:10.1063/1.5088837

Cited by 21 publications

(10 citation statements)

References 37 publications

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“…HMMs provide some new ways to control electromagnetic waves because of their special IFC. On the one hand, by tuning the shape of hyperbolic dispersion, one can flexibly control the propagation of light in HMMs and realize the all-angle negative refraction [11][12][13][14][15], collimation [16][17][18][19][20], splitting [21][22][23], near-perfect absorption 3 [24][25][26][27][28] and abnormal scattering [29][30][31][32]. On the other hand, in contrast to the closed IFC of normal materials (such as air), the hyperboloid IFC in HMMs is open and the large wavevectors can be supported [33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Hyperbolic metamaterials: From dispersion manipulation to applications

Guo

Jiang

Chen

2020

Journal of Applied Physics

188

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OUTLINE I. Introduction II. Basic physics of hyperbolic metamaterials A. Physical properties 1. Dispersion relation of the anisotropic materials 2. Enhanced spontaneous emission 3. Abnormal refraction, reflection, and scattering B. Realization ways 1. Effective medium theory 2. Hyperbolic metasurface 3. Natural hyperbolic media III. Topological transition of dispersion A. Dispersion transition from closed ellipsoids to open hyperboloids 1. Materials dispersion steered topological transition 2. Loss induced topological transition 3. Actively controlled topological transition B. Transition points at two kinds of topological transition 1. Anisotropic zero-index metamaterials 2. Linear crossing metamaterials IV. Dispersion control in Hypercrystals A. Controlling the dispersion of band structure B. Cavity modes and edge modes with special dispersion V. Applications A. Hyperlens B. Long-range energy transfer C. High sensitivity sensors

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Section: Introductionmentioning

confidence: 99%

Hyperbolic metamaterials: From dispersion manipulation to applications

Guo

Jiang

Chen

2020

Journal of Applied Physics

188

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“…For example, photostability, low-loss organic HMMs and super-resolution imaging platform using HMMs are being actively investigated [90,[234][235][236][237][238]. The propagation of light in HMMs can be applied to various optical components for collimation [70,239], splitters [240][241][242][243], airy beams [244,245], and even with absorption and scattering for sensing and cloaking [246]. Furthermore, lasers and hypercrystals that use HMMs are also being actively studied [247][248][249][250], and cavity structures capable of resonance regardless of their size and scale are being investigated [143].…”

Section: Discussionmentioning

confidence: 99%

Hyperbolic metamaterials: fusing artificial structures to natural 2D materials

Lee

et al. 2022

eLight

243

136

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Optical metamaterials have presented an innovative method of manipulating light. Hyperbolic metamaterials have an extremely high anisotropy with a hyperbolic dispersion relation. They are able to support high-k modes and exhibit a high density of states which produce distinctive properties that have been exploited in various applications, such as super-resolution imaging, negative refraction, and enhanced emission control. Here, state-of-the-art hyperbolic metamaterials are reviewed, starting from the fundamental principles to applications of artificially structured hyperbolic media to suggest ways to fuse natural two-dimensional hyperbolic materials. The review concludes by indicating the current challenges and our vision for future applications of hyperbolic metamaterials.

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“…In the microwave circuit-based 2D LCMM, the beam splitting is at a normal incidence and dthe irectional propagation is at an oblique incidence, which can lead to subwavelength imaging with a partial cloaking effect, as has been observed [12]. Also, based on anisotropic dielectric photonic crystals, the effective LCMM originating from the nonlocal effect has been realized in the microwave regime [14]. Here we will discuss the realization and applications of the LCMM in the visible regime.…”

mentioning

confidence: 90%

Linear-crossing metamaterials mimicked by multi-layers with two kinds of single negative materials

2020

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The topological transition of an iso-frequency contour will provide a powerful control for the interaction between light and matter. For example the transition of iso-frequency contour from an elliptical dispersion to a hyperbolic dispersion can result in many interesting optical phenomena including super-resolution, optical switching and collimation. In recently published literature, it has been shown that another transition from the metal-type hyperbolic dispersion to dielectric-type hyperbolic dispersion can be realized in the microwave circuit-based metamaterials. Particularly, the transition point corresponds to a new class of metamaterials with two intersecting linear dispersions, which can be called linear-crossing metamaterials (LCMMs). Because of the linear dispersion, LCMMs have been demonstrated to possess many unusual properties such as directional propagation and slab-focusing with a partial cloaking effect. In this perspective, we will demonstrate that the multilayered structure composed of ε-negative material and μ-negative material can mimic the LCMM in the optical regime. Based on this effective LCMM, we study the slab-imaging with a partial cloaking effect. In addition, we reveal that with the aid of LCMM, the Bessel beam with self-healing can be realized by a point source. The results show that LCMMs would be very useful in a variety of applications such as 50/50 beam splitters, focusing and non-diffraction beams.

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Beam splitting and unidirectional cloaking using anisotropic zero-index photonic crystals

Cited by 21 publications

References 37 publications

Hyperbolic metamaterials: From dispersion manipulation to applications

Hyperbolic metamaterials: From dispersion manipulation to applications

Hyperbolic metamaterials: fusing artificial structures to natural 2D materials

Linear-crossing metamaterials mimicked by multi-layers with two kinds of single negative materials

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