Three-dimensional array of dielectric spheres with an isotropic negative permeability at infrared frequencies

Wheeler, Mark S.; Aitchison, J. S.; Mojahedi, Mo

doi:10.1103/physrevb.72.193103

Cited by 201 publications

(130 citation statements)

References 23 publications

Supporting

Mentioning

122

Contrasting

Unclassified

Order By: Relevance

“…[2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] An exciting consequence of NR was discovered by Pendry, 17 and involves the possibility of constructing a superlens capable of resolution surpassing the diffraction limit of conventional lenses. Various approaches have been taken to demonstrate NR.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Negative refraction in three-dimensional point-dipolelike polaritonic crystals

Rose

Kempa

2010

Journal of Applied Physics

View full text Add to dashboard Cite

We propose two practical realizations of the point-dipole crystal, shown previously to be capable of negative refraction and other metamaterial and plasmonic properties. These are: an array of highly polarizable spheres, and the complementary array of spherical cavities in a highly polarizable medium. We study light propagation through these polaritonic crystals and show that they are capable of negative refraction, and can be constructed from available materials for experimental demonstrations at both microwave and optical frequencies.

show abstract

Section: Introductionmentioning

confidence: 99%

“…[3][4][5] Similar ideas have been exploited in effective media made of spherical particles in a matrix. [6][7][8][9] In another approach, it was shown that NR occurs in photonic, 19,21 and polaritonic crystals. [22][23][24] Recently, Kempa et.…”

Section: Introductionmentioning

confidence: 99%

Negative refraction in three-dimensional point-dipolelike polaritonic crystals

Rose

Kempa

2010

Journal of Applied Physics

View full text Add to dashboard Cite

show abstract

“…Recent works [8,9,10,11,12] have made a step forward by proposing to use highpermittivity dielectric objects instead of metallic ones to avoid the losses and saturation effects inherent to the metal in the optical range [13]. This approach relies on the resonant modes that dielectric objects support [14].…”

mentioning

confidence: 99%

All-Dielectric Rod-Type Metamaterials at Optical Frequencies

et al. 2009

View full text Add to dashboard Cite

Light propagation in all-dielectric rod-type metamaterials is studied theoretically. The electric and magnetic dipole moments of the rods are derived analytically in the long-wavelength limit. The effective permittivity and permeability of a square lattice of rods are calculated by homogenizing the corresponding array of dipoles. The role of dipole resonances in the optical properties of the rod array is interpreted. This structure is found to exhibit a true left-handed behavior, confirming previous experiments [L. Peng et al., Phys. Rev. Lett. 98, 157403 (2007)]. A scaling analysis shows that this effect holds at optical frequencies and can be obtained by using rods made, for example, of silicon.

show abstract

“…Thus, it allows for an abnormal EM medium in the infrared region. Wheeler et al [26] proposed a scheme to obtain negative effective permeability using a collection of polaritonic spheres. Based on the polar lattice vibration of LiTaO 3 crystal, which result in a high permittivity at infrared frequency, the effective parameters were calculated and the results are shown in Figure 5.…”

Section: Abnormal Em Media Composed Of Highpermittivity Particles Basmentioning

confidence: 99%

Intrinsic abnormal electromagnetic medium based on polar lattice vibration

2011

View full text Add to dashboard Cite

A new class of media with abnormal electromagnetic parameters has been attracting increasing attention because of its exotic properties and potential application. Currently, typical metamaterials are mainly composed of artificially designed metallic periodic structures. However, due to the limitations of available fabrication technologies, physical size and material effects, it is difficult to realize these abnormal properties by these artificial structures in the high-frequency regime. Therefore, it is important to find materials with intrinsic abnormal electromagnetic responses. In this field, a new mechanism based on the interaction between polar lattice vibrations and electromagnetic waves has been proposed. In this paper, we review progress in this field. abnormal electromagnetic medium, polar lattice vibration, intrinsic property, infrared, indefinite medium Citation:Wang R, Zhou J, Qiu X G. Intrinsic abnormal electromagnetic medium based on polar lattice vibration. Chinese Sci Bull, 2011Bull, , 56: 1318Bull, −1324Bull, , doi: 10.1007 Abnormal electromagnetic (EM) medium refer to a kind of material system with abnormal permittivity and permeability (negative or less than unity), which is typically represented by left handed material (LHM) with negative permittivity and permeability at the same time. Abnormal EM medium is normally realized via metamaterials based on metallic periodic structures [1][2][3][4][5][6][7][8][9][10][11][12]. The abnormal properties in the metamaterial usually originate from the artificial structure, and not from the materials themselves. These materials attracted much attention not only because of their scientific significance, but also their potential for enlargement of the performance scale, and design of new functional materials. Conventional metamaterials are based on highly engineered artificial structure units, normally with electric or magnetic resonances, such as wires and split ring resonators (SRRs) [2,[4][5][6][7][8][9]. In the infrared and optical regions, metamaterials are showing more and more shortcomings for the current fabrication technologies, characteristic physical size and material effects of metals in mesoscopic scale. However, intrinsic EM responses in nature existed materials provide another choice. For example, ferromagnetic resonances in ferrites can provide tunable negative permeability at microwave frequency [16][17][18], and the electric resonance in ferroelectric can be used to achieve a negative permittivity [19,20]. However, because of their high frequency cutoffs, these EM resonances cannot be extended to the infrared or optical regions, restricting the development of intrinsic abnormal media. Therefore, it is a challenging problem to realize intrinsic abnormal EM properties in the high frequency regime. Recently, abnormal EM media based on polar lattice vibrations in the infrared region have attracted

show abstract

Three-dimensional array of dielectric spheres with an isotropic negative permeability at infrared frequencies

Cited by 201 publications

References 23 publications

Negative refraction in three-dimensional point-dipolelike polaritonic crystals

Negative refraction in three-dimensional point-dipolelike polaritonic crystals

All-Dielectric Rod-Type Metamaterials at Optical Frequencies

Intrinsic abnormal electromagnetic medium based on polar lattice vibration

Contact Info

Product

Resources

About