Oblique total transmission through an anisotropic zero-epsilon metamaterial slab

Lu, Lizhong; Wang, Jijun; Fang, Yun-tuan

doi:10.1016/j.optlastec.2012.09.022

Cited by 6 publications

(3 citation statements)

References 21 publications

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“…, which is independent of thickness [8,53,54]. And in the transmission spectrum of the PC slab, we can indeed observe the particular transmission peaks.…”

Section: Band Structure and Effective Parametersmentioning

confidence: 76%

Epsilon-near-zero or mu-near-zero materials composed of dielectric photonic crystals

Luo

Lai

2013

Sci. China Inf. Sci.

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We theoretically demonstrate that at certain frequencies two-dimensional dielectric photonic crystals (PCs) may be regarded as either epsilon-near-zero or mu-near-zero materials. We show that the transmission through a slab of such materials upon normal incidence is normally non-unity and decays with slab thickness. However, when the incident angle increases slightly, the transmittance experiences a dramatic increase due to the Brewster effect. The combination of the tunneling and resonance effects makes such materials good candidates for almost perfect bending waveguides and cloaking in waveguides. The zero index also enables applications of focusing and directive emission. At last, the distinction between the single-zero and double-zero media is discussed. In all of the above results, the numerical simulations perfectly match with theoretical predictions from the effective medium analysis. Keywords photonic crystal, epsilon-near-zero material, mu-near-zero material, effective medium, transmission properties, Brewster effect Citation Luo J, Lai Y. Epsilon-near-zero or mu-near-zero materials composed of dielectric photonic crystals.

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“…, which is independent of thickness [8,53,54]. And in the transmission spectrum of the PC slab, we can indeed observe the particular transmission peaks.…”

Section: Band Structure and Effective Parametersmentioning

confidence: 76%

Epsilon-near-zero or mu-near-zero materials composed of dielectric photonic crystals

Luo

Lai

2013

Sci. China Inf. Sci.

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“…A periodic multilayer structure that consists of metal and dielectric layer has been developed. It can control transmission of infrared and visible light [13][14][15][16]. The structure can be integrated within existing façade openings as it is extremely thin, transparent to the eye and would present a low profile for replacing existing or damaged windows.…”

Section: Introductionmentioning

confidence: 99%

A CST simulation and performance analysis for a passive façade integratable metamaterials structure

Meng

Savini

Leung

et al. 2017

2017 10th UK-Europe-China Workshop on Millimetre Waves and Terahertz Technologies (UCMMT)

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In the case of stone relics with cultural heritage value that are exposed to the adverse effects of direct exposure to weathering, we present a metamaterial with a composite structure that can passively control the transmittance of infrared and visible light. This periodic multi-layer structure consist of metal and dielectric layers, these have the function of low transmittance at infrared wavelengths and high transmittance in visible light. Its spectrally-selective behavior offers the possibility of both temperature regulation and natural daylighting of cultural relics. In addition, it can be discretely integrated with an existing architectural façade to provide weathering protection against rain and snow. Results show the composite structure can not only obtain a band gap width of 109 THz in the near infrared wave-band but also ensure that most of the visible light's transmittance is higher than τ=0.4. Furthermore, since the transmission spectrum is independent of polarization angle, the cultural relics benefit from its spectral-selective properties regardless of the polarization angle due to the sun's position.

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“…In recent years, many scholars focus on the design of artificial structure, it has a programmable permittivity and penetrability, and it was named as the metamaterials [1,2]. Due to its strong transmission phenomenon is widely used in various fields [3][4][5], many periodic [6][7][8][9] and aperiodic [10][11][12] metal structure have been discovered.…”

Section: Introductionmentioning

confidence: 99%

Transmission enhancement of the ellipse gold split rings

et al. 2015

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In this paper, we present experimentally the transmission and absorption properties of THz pulse through subwavelength ellipse gold rings which deposited on the silicon substrate. The transmission measurement is carried out using THz time-domain spectroscopy. THz spectra of these ellipse gold rings shows the high transmissivity, lowabsorption and flat refractive index curve in the frequency range of 0.4-2.5 THz. The results show that the transmission coefficients of all samples are above 0.68 in THz wave band. And the enhanced transmission of the two kinds of samples is more sensitive in high frequency range than in low frequency range. Especially when the angle between the THz wave polarization direction and the long axis of elliptic ring is 0o, the transmission coefficient for the ellipse gold split rings of sample No.2 is more than 0.98 after 1.45THz. The slits were introduced into the ellipse gold rings structure can be used effectively to modulate transmission light for the potential application of THz photonic devices.

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Oblique total transmission through an anisotropic zero-epsilon metamaterial slab

Cited by 6 publications

References 21 publications

Epsilon-near-zero or mu-near-zero materials composed of dielectric photonic crystals

Epsilon-near-zero or mu-near-zero materials composed of dielectric photonic crystals

A CST simulation and performance analysis for a passive façade integratable metamaterials structure

Transmission enhancement of the ellipse gold split rings

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