Slow microwaves in left-handed materials

Gennaro, Emiliano Di; Parimi, Patanjali V.; Lu, W. T.; Sridhar, Srinivas; Derov, John S.; Turchinetz, Beverly

doi:10.1103/physrevb.72.033110

Cited by 16 publications

(13 citation statements)

References 20 publications

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“…125 An interesting PhC consisting of Al 2 O 3 rods (dielectric constant = 9, radius 0.316 mm, height 1.25 mm) on a square lattice with r/a = 0 175 and 0.35 was fabricated for measurements of lowering group velocity. 129 For the measurements of the group velocity g , the PhC was arranged as parallel plate waveguide with TM mode and with electric field parallel to the Al 2 O 3 rods. It was noted 119 that the negative refraction in this PhC proceeds in higher (valence) bands and does not interfere with the Bragg reflection and transmission efficiency.…”

Section: Photonic Crystalsmentioning

confidence: 99%

Negative Refractive Index Materials

Veselago¹,

Braginsky²,

Shklover³

et al. 2006

j comput theor nanosci

251

159

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The main directions of studies of materials with negative index of refraction, also called left-handed or metamaterials, are reviewed. First, the physics of the phenomenon of negative refraction and the history of this scientific branch are outlined. Then recent results of studies of photonic crystals that exhibit negative refraction are discussed. In the third part numerical methods for the simulation of negative index material configurations and of metamaterials that exhibit negative index properties are presented. The advantages and the shortages of existing computer packages are analyzed. Finally, details of the fabrication of different kinds of metamaterials are given. This includes composite metamaterials, photonic crystals, and transmission line metamaterials for different wavelengths namely radio frequencies, microwaves, terahertz, infrared, and visible light. Furthermore, some examples of practical applications of metamaterials are presented.

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Section: Photonic Crystalsmentioning

confidence: 99%

Negative Refractive Index Materials

Veselago¹,

Braginsky²,

Shklover³

et al. 2006

j comput theor nanosci

251

159

View full text Add to dashboard Cite

show abstract

“…2,4 Different schemes have been employed to control the light's dispersion and thus the speed of information transfer in man-made architectures. 1,2,4,[13][14][15][16][17][18][19][20][21] An interesting scheme was proposed in 2006 by Vandenbem et al 22 that joins a positiverefractive-index medium (PIM) with a negative-refractiveindex medium (NIM) 23 together into a heterostructure waveguide, 24 shown to exhibit a flat photonic dispersion. 22 Other NIM-based waveguides were also reported by Shadrivov et al 25 and Tsakmakidis et al, 26 but with the energy being guided through the NIM only, evanescently decaying outside.…”

Section: Introductionmentioning

confidence: 99%

Extended slow-light field enhancement in positive-index/negative-index heterostructures

Foteinopoulou

Vigneron

2013

Phys. Rev. B

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We present a biwaveguide paradigm composed of joined positive-index-material (PIM)/negative-indexmaterial (NIM) slabs, demonstrating ultraslow-light propagation stemming from the competing propagation disposition in the PIM and NIM regions. We report for the first time a mesoscopic extended electromagnetic (EM) enhancement covering regions of the order of the free-space wavelength, enabled by the slow-light mode in our system. Our dynamic numerical results are consistent with our developed theoretical model, predicting an EM energy accumulation reminiscent of a charging capacitor. Our analysis reveals that spatial compression is not a requirement for EM enhancement in slow-light systems and stresses the merits of a high coupling efficiency, strong temporal compression, monomodality, and modal index bandwidth-all present in our proposed paradigm. Furthermore, we show that the heterostructure waveguide mode is an extraordinary entity with a unique energy velocity, which is opposite to the Poynting vector in one of the participant waveguides. We believe that these results will inspire new slow-light platforms relevant to the collective harvesting of strong light-matter interactions.

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“…Currently, we can find two kind of artificial metamaterials that can exhibit negative refraction: photonic crystals, as shown in Refs. [26,27], and composite materials as shown in Ref. [28].…”

Section: Wave Propagation Concepts For Near-future Telecommunication mentioning

confidence: 99%

Photon Propagation Through Dispersive Media

Robles¹,

Pizarro²

2017

Wave Propagation Concepts for Near-Future Telecommunication Systems

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In the present chapter, we study the propagation of photons through dispersive media, starting from a description of the dynamics of free photons using a Dirac-like equation with an analysis of the energy solutions arising from this equation. A comparison with the case of a free electron is made. We present an analysis of the interaction between photons with the medium considering both a classical and a quantum treatment of light, and also we analyse the propagation of photons along a waveguide where they behave as if they did have a finite mass. As a technological application of the theoretical frame here presented, we consider the use of the properties of metamaterials to control the propagation of waves through waveguides filled with this kind of materials.

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Slow microwaves in left-handed materials

Cited by 16 publications

References 20 publications

Negative Refractive Index Materials

Negative Refractive Index Materials

Extended slow-light field enhancement in positive-index/negative-index heterostructures

Photon Propagation Through Dispersive Media

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