Broadband diamagnetism in anisotropic metamaterials

Lapine, Mikhail; Krylova, Anastasia; Belov, Pavel A.; Poulton, Christopher G.; McPhedran, R. C.; Kivshar, Yuri S.

doi:10.1103/physrevb.87.024408

Cited by 21 publications

(22 citation statements)

References 16 publications

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“…Recently, this problem has been revisited by Lapine et al [6] and also by Belov et al [7]. In the first case [6], it was shown that a dense hexagonal lattice of closed loops with realistic parameters can deliver effective bulk permeability as low as 0.05. However, this design is necessarily anisotropic, which may pose an obstacle for certain applications.…”

Section: Introductionmentioning

confidence: 99%

“…1(a), with those for a sphere made of an artificial diamagnetic metamaterial-an anisotropic lattice of closed conducting loops [6]. We consider rings of mean radius r 0 , made of a metallic wire (with the same conductivity σ ) of circular cross section with radius r w .…”

Section: B a Sphere Of An Artificial Medium Made Of Conducting Loopsmentioning

confidence: 99%

“…As we know [6], a strong diamagnetism requires that b i is as small as possible, while w is as large as possible for the given lattice parameters. Based on the available data (see Figs.…”

Section: B a Sphere Of An Artificial Medium Made Of Conducting Loopsmentioning

confidence: 99%

“…3 and 4 in Ref. [6]), we select a shifted hexagonal lattice and set w = 0.01, b 1 = 0.02, b 2 = 2.02, as a compromise between sufficiently low permeability and technological constraints (indeed, a further decrease in these parameters does not lower the μ values perceptibly). Figure 1(b) shows the effective bulk permeability of the ring metamaterial with the above parameters for loops with r 0 = a/(10b 2 ) for the same set of a as in Fig.…”

Section: B a Sphere Of An Artificial Medium Made Of Conducting Loopsmentioning

confidence: 99%

“…Dimensionless parameters b i and w = r w /r 0 , serve for ease of notation. The effective permeability of such a metamaterial can be calculated as [6] …”

Section: B a Sphere Of An Artificial Medium Made Of Conducting Loopsmentioning

confidence: 99%

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Applicability of nonresonant artificial diamagnetics

2014

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Artificial diamagnetics are prominent for achieving extraordinarily strong diamagnetism in a wide frequency range. However, as far as the magnetic fields outside the artificial medium are concerned, bulk conductors show a very similar pattern. The question arises whether the complicated internal structure of artificial diamagnetics can, to this end, be replaced by a simpler object. We show that for an electrically small body, internal structuring is likely to make the effective diamagnetic response weaker than that of a simple conducting object.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: B a Sphere Of An Artificial Medium Made Of Conducting Loopsmentioning

confidence: 99%

“…As we know [6], a strong diamagnetism requires that b i is as small as possible, while w is as large as possible for the given lattice parameters. Based on the available data (see Figs.…”

Section: B a Sphere Of An Artificial Medium Made Of Conducting Loopsmentioning

confidence: 99%

Section: B a Sphere Of An Artificial Medium Made Of Conducting Loopsmentioning

confidence: 99%

“…Dimensionless parameters b i and w = r w /r 0 , serve for ease of notation. The effective permeability of such a metamaterial can be calculated as [6] …”

Section: B a Sphere Of An Artificial Medium Made Of Conducting Loopsmentioning

confidence: 99%

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Applicability of nonresonant artificial diamagnetics

2014

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Constructing Metastructures with Broadband Electromagnetic Functionality

et al. 2019

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Electromagnetic metastructures stand for the artificial structures with a characteristic size smaller than the wavelength, which may efficiently manipulate the states of light. However, their applications are often restricted by the bandwidth of the electromagnetic response of the metastructures. It is therefore essential to reassert the principles in constructing broadband electromagnetic metastructures. Herein, after summarizing the conventional approaches for achieving broadband electromagnetic functionality, some recent developments in realizing broadband electromagnetic response by dispersion compensation, nonresonant effects, and several trade‐off approaches are reviewed, followed by some perspectives for the future development of broadband metamaterials. It is anticipated that broadband metastructures will have even more substantial applications in optoelectronics, energy harvesting, and information technology.

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Photonic and Plasmonic Metasensors

Ahmadivand

Gerislioglu

2021

Laser & Photonics Reviews

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Biosensors have been designed and developed for detecting biomarkers, biomolecules, proteins, enzymes, organisms, and various types of bacterial and viral diseases since the turn of the century. Initially marred by poor sensitivity, specificity, and selectivity, the advent of the notion of photonic biosensors has successfully addressed such drawbacks. One of the hallmarks of modern pharmaceutical industries is the miniaturization of photonic platforms via continuous scaling down of their sizes, which was accomplished by leveraging the concept of artificial media. Numerous forms of photonic and plasmonic devices have been configured for next-generation technologies since the emergence of metamaterials. Among diverse applications, the development of cost-effective, label-free, selective, precise, and on-chip immunobiosensors with rapid sample-to-result feature has received copious interest, recently. This focused Review brings clarity to the rapidly growing body of available and in-development metamaterials-enabled diagnostic instruments based on inventive and promising approaches. Through centering on the operating principles of plasmonic, photonic, and hybrid metasensors, we mechanistically characterize and describe the properties of such tools and summarize the most recent achievements in devising metasensors and bioimaging tools with high precision. This insightful understanding serves as a comprehensive source for scientists, physicians, and students to construct ultradense and high-throughput clinical screening metadevices.

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Broadband diamagnetism in anisotropic metamaterials

Cited by 21 publications

References 16 publications

Applicability of nonresonant artificial diamagnetics

Applicability of nonresonant artificial diamagnetics

Constructing Metastructures with Broadband Electromagnetic Functionality

Photonic and Plasmonic Metasensors

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