Total Transmission and Total Reflection by Zero Index Metamaterials with Defects

Nguyen, Viet Cuong; Chen, Lang; Halterman, Klaus

doi:10.1103/physrevlett.105.233908

Cited by 244 publications

(183 citation statements)

References 29 publications

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“…All fields within the material oscillate in unison, achieving electrostatic behavior at optical frequencies 4 . This regime allows access to a wealth of exciting physical phenomena and potential applications including super-coupling, cloaking, and new approaches for phase matching in nonlinear optics 3,[5][6][7][8][9] .…”

Section: Introductionmentioning

confidence: 99%

On-chip zero-index metamaterials

et al. 2015

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Summary: Metamaterials with a refractive index of zero exhibit physical properties such as infinite phase velocity and wavelength. However, there is no way to implement these materials on a photonic chip, restricting the investigation and application of zero-index phenomena to simple shapes and small scales. We designed and fabricated an on-chip integrated metamaterial with a refractive index of zero in the optical regime. Light refracts perpendicular to the facets of a prism made of this metamaterial, directly demonstrating that the index of refraction is zero. The metamaterial consists of low-aspect-ratio silicon pillar arrays embedded in a polymer matrix and clad by gold films. This structure can be fabricated using standard planar processes over a large area in arbitrary shapes and can efficiently couple to photonic integrated circuits and other optical elements. This novel on-chip metamaterial platform opens the door to exploring the physics of zero-index and its applications in integrated optics.

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Section: Introductionmentioning

confidence: 99%

On-chip zero-index metamaterials

et al. 2015

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“…Thin film of pure SiC exhibits emission peaks at λ SiC n ≈ 10.33 µm and λ SiC n ≈ 13 µm. λ n is the wavelength at which the real part of the refractive index becomes zero (zero-index material) [6,32]. λ κ is the wavelength at which the real part of refractive index (n) is large while the imaginary part of refractive index (κ) is small [6].…”

Section: Resultsmentioning

confidence: 99%

Thermal Radiative Wavelength Selectivity of Nanostructured Layered Media

Zheng¹

2017

Nanoscaled Films and Layers

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Thermal radiative transport yields unique thermal characteristics of microscopic thin films-wavelength selectivity. This chapter focuses on a methodology about adjusting the wavelength selectivity of thin films embedded with nanoparticles in the far-field and near-field regimes. For nanostructured layered media doped with nanoparticles, Maxwell-Garnett-Mie theory is applied to determine the effective dielectric function for the calculation of radiative thermal transport. The thermal radiative wavelength selectivity can be affected by volume fraction and/or the size of the embedded nanoparticles in thin films. To characterize wavelength selectivity and optical property of nanostructured materials, both real and imaginary parts of effective refractive index need to be analyzed. It has been shown that the nanoparticles made of polar or metallic materials have different influence on thermal radiative wavelength selectivity of microscopic thin films.

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“…An interesting phenomenon that takes place within EMNZ-bounded environments is the unconventional scattering performance of PEC objects embedded in an EMNZ medium. Recently, there has been some lines of work investigating the behaviour of zero-index media when loaded by various structures and the ability of these systems to manipulate the transmission and reflection profile owing to the unique scattering performance within zero-index media [21][22][23][24] .…”

Section: Resultsmentioning

confidence: 99%

“…S, Silveirinha, M. & Engheta, N., manuscript in preparation), and to overcome the problem of weak coupling between different electromagnetic components that are conventionally not well matched, for example, in a coaxial to waveguide transition 20 . Another interesting field of research has been about manipulating the transmission characteristics using near-zero media [21][22][23][24] where such media have been loaded by certain properly designed inclusions that allow shaping of the system's transmission profile.…”

mentioning

confidence: 99%

Wave–matter interactions in epsilon-and-mu-near-zero structures

2014

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In recent years, the concept of metamaterials has offered platforms for unconventional tailoring and manipulation of the light-matter interaction. Here we explore the notion of 'static optics', in which the electricity and magnetism are decoupled, while the fields are temporally dynamic. This occurs when both the relative effective permittivity and permeability attain near-zero values at a given operating frequency. We theoretically investigate some of the resulting wave features in bounded scenarios, such as unusual radiation characteristics of an emitter embedded in such epsilon-and-mu-near-zero media in bounded environments. Using such media, one might in principle 'open up' and 'stretch' the space, and have regions behaving electromagnetically as 'single points' despite being electrically large. We suggest a possible design for implementation of such structures using a single dielectric rod inserted in a waveguide operating near its cutoff frequency, providing the possibility of having electrically large 'empty' volumes to behave as epsilon-and-mu-near-zero media.

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Total Transmission and Total Reflection by Zero Index Metamaterials with Defects

Cited by 244 publications

References 29 publications

On-chip zero-index metamaterials

On-chip zero-index metamaterials

Thermal Radiative Wavelength Selectivity of Nanostructured Layered Media

Wave–matter interactions in epsilon-and-mu-near-zero structures

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