Slow microwave waveguide made of negative permeability metamaterials

Lu, W. T.; Savo, Savatore; Casse, B. D. F.; Sridhar, Srinivas

doi:10.1002/mop.24727

Cited by 31 publications

(21 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Assuming a parabolic-like υ g profile with distance (with υ g = 0 at the critical point), it is straightforward to show that the time it takes for the lightwave to exactly reach the critical point in an adiabatically tapered structure diverges logarithmically (40,64); hence, that critical point (where υ g = 0) is, in theory, never reached because the effective optical distance, Ln g , L being the guide's physical length, diverges (n g → ∞); it is as if a guided lightwave propagates towards one end of an infinitely-long waveguide (65)(66)(67), never quite reaching it. Accordingly, a sinusoidal light signal keeps accumulating, with a progressively smaller group velocity, near the "critical" zero-υ g point in this singular, idealized structure (Fig.…”

Section: Physics Of Sub-diffraction Slow and Stopped Lightwavesmentioning

confidence: 99%

Ultraslow waves on the nanoscale

Tsakmakidis¹,

Hess

Boyd

et al. 2017

Science

114

108

View full text Add to dashboard Cite

There has recently been a surge of interest in the physics and applications of broadband ultraslow waves in nanoscale structures operating below the diffraction limit. They range from lightwaves or surface plasmons in nanoplasmonic devices to sound waves in acoustic-metamaterial waveguides, as well as fermions and phonon polaritons in graphene and van der Waals crystals and heterostructures. We review the underlying physics of these structures, which upend traditional wave-slowing approaches based on resonances or on periodic configurations above the diffraction limit. Light can now be tightly focused on the nanoscale at intensities up to ~1000 times larger than the output of incumbent near-field scanning optical microscopes, while exhibiting greatly boosted density of states and strong wave-matter interactions. We elucidate the general methodology by which broadband and, simultaneously, large wave-decelerations, well below the diffraction limit, can be obtained in the above interdisciplinary fields. We also highlight a range of applications for renewable energy, biosensing, quantum optics, highdensity magnetic data-storage and nanoscale chemical mapping.

show abstract

Section: Physics Of Sub-diffraction Slow and Stopped Lightwavesmentioning

confidence: 99%

Ultraslow waves on the nanoscale

Tsakmakidis¹,

Hess

Boyd

et al. 2017

Science

114

108

View full text Add to dashboard Cite

show abstract

“…Recently, the topic of slow light has garnered considerable attention because slow light is potentially applicable to optical switching and to storage devices like optical hard disks [14,[106][107][108][109][110]. But in SPP mode, left-handed slab waveguides are very sensitive to surface roughness and operate in multiple modes [108].…”

Section: Slow-light Effect By Nrimmentioning

confidence: 99%

Enriching the Symmetry of Maxwell Equations through Unprecedented Magnetic Responses of Artificial Metamaterials and Their Revolutionary Applications

et al. 2011

View full text Add to dashboard Cite

Abstract:The major issue regarding magnetic response in nature-"negative values for the permeability μ of material parameters, especially in terahertz or optical region" makes the electromagnetic properties of natural materials asymmetric. Recently, research in metamaterials has grown in significance because these artificial materials can demonstrate special and, indeed, extraordinary electromagnetic phenomena such as the inverse of Snell's law and novel applications. A critical topic in metamaterials is the artificial negative magnetic response, which can be designed in the higher frequency regime (from microwave to optical range). Artificial magnetism illustrates new physics and new applications, which have been demonstrated over the past few years. In this review, we present recent developments in research on artificial magnetic metamaterials including split-ring resonator structures, sandwich structures, and high permittivity-based dielectric composites. Engineering applications such as invisibility cloaking, negative refractive index medium, and slowing light fall into this category. We also discuss the possibility that metamaterials can be suitable for realizing new and exotic electromagnetic properties. OPEN ACCESSSymmetry 2011, 3 284

show abstract

“…Articles in which the most consistently investigated metamaterial waveguides can be presented [6][7][8][9][10][11][12]. In [6], theoretical analysis of two layered 1D slab waveguides when materials have the constitutive parameters with signs of all combinations, i.e., with negative real permittivity, but positive real permeability (epsilon-negative (ENG)); with negative real permeability, but positive real permittivity (mu-negative (MNG)); with both negative real permittivity and permeability (double-negative (DNG)), and conventional material with both positive real permittivity and permeability (double-positive (DPS)) are presented.…”

Section: Introductionmentioning

confidence: 99%

“…[10] presented the relative phase constant and the power of TE 0 , TE 1 , TM 1 , TM 2 modes. In [11], wave propagations in a 2D planar dielectric waveguide covered by the MNG metamaterial layers were considered. Here the waveguide thickness when the forward and backward modes can propagate was theoretically found.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Electrodynamical Characteristic Particularity of Open Metamaterial Square and Circular Waveguides

Gric¹,

Nickelson²,

Ašmontas³

2010

PIER

View full text Add to dashboard Cite

Abstract-We present here the solution of the eigenvalue problems for the open metamaterial square and circular rod waveguides. The Maxwell's equations for the electrodynamical analysis of the open waveguides were solved by the Singular Integral Equations' (SIE) method and partial area method. Our SIE method is pretty universal and let us rigorously analyze open waveguides electrodynamically with any arbitrary cross-sections taking into account of the edge condition. The false roots did not occur applying the SIE method. The waveguide media can be of strongly lossy materials. The signs of the complex permittivity and permeability can be positive or negative in different combinations. We used our computer algorithms based on the two mentioned methods with 3D graphical visualization in the MATLAB language. We present here our numerical calculations of the metamaterial square waveguide with sides equal to 5 · 10 −3 m and the metamaterial circular waveguide with the diameter equal to 5 · 10 −3 m. We present dependences of phase constant and attenuation constant of metamaterial waveguides at the frequency range from 75 GHz till 115 GHz. We have compared the three dimension (3D) electric field distributions of the main mode and the first higher mode propagating in the square and circular metamaterial waveguides. The calculations of the electric fields were fulfilled at approximately 10000 points in every cross-section. We discovered that the electric field is concentrated at the waveguide boundary. The distribution of the electric field along the perimeter of the waveguide is not uniform. There are two areas on the perimeter of the square and circular waveguides 362Gric, Nickelson, and Asmontas where the electric field has maximum values. These areas are shifted relative to each other on π radians.

show abstract

Slow microwave waveguide made of negative permeability metamaterials

Cited by 31 publications

References 30 publications

Ultraslow waves on the nanoscale

Ultraslow waves on the nanoscale

Enriching the Symmetry of Maxwell Equations through Unprecedented Magnetic Responses of Artificial Metamaterials and Their Revolutionary Applications

Electrodynamical Characteristic Particularity of Open Metamaterial Square and Circular Waveguides

Contact Info

Product

Resources

About