Homogenization of electromagnetic crystals formed by uniaxial resonant scatterers

被引：126

作者：

Belov, PA

Simovski, CR

机构：

[1] Queen Mary Univ London, Dept Elect Engn, London E1 4NS, England

[2] St Petersburg State Univ Informat Technol Mech &, Photon & Optoinformat Dept, St Petersburg 197101, Russia

来源：

PHYSICAL REVIEW E | 2005年 / 72卷 / 02期

关键词：

D O I：

10.1103/PhysRevE.72.026615

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Dispersion properties of electromagnetic crystals formed by small uniaxial resonant scatterers (magnetic or electric) are studied using the local field approach. The goal of the study is to determine the conditions under which the homogenization of such crystals is possible. Therefore the consideration is limited to the frequency region where the wavelength in the host medium is larger than the lattice periods. It is demonstrated that, together with the known restriction for the homogenization related to the large values of the material parameters, there is an additional restriction related to their small absolute values. On the other hand, the homogenization becomes allowed in both cases of large and small material parameters for special directions of propagation. Two unusual effects inherent to the crystals under consideration are revealed: a flat isofrequency contour that allows subwavelength imaging using the canalization regime and birefringence of the extraordinary modes which can be used for beam splitting.

引用

页数：15

共 53 条

[11] Directed diffraction without negative refraction [J].

Chien, HT ;

Tang, HT ;

Kuo, CH ;

Chen, CC ;

Ye, Z .

PHYSICAL REVIEW B, 2004, 70 (11)

[12] Self-guiding in two-dimensional photonic crystals [J].

Chigrin, DN ;

Enoch, S ;

Torres, CMS ;

Tayeb, G .

OPTICS EXPRESS, 2003, 11 (10) :1203-1211

[13]

Collin R E, 1990, FIELD THEORY GUIDED

[14] INTERNAL FIELD IN GENERAL DIPOLE LATTICES [J].

DEWETTE, FW ;

SCHACHER, GE .

PHYSICAL REVIEW, 1965, 137 (1A) :A78-&

[15]

EWALD PP, 1921, ANN PHYS, V64, P53287

[16] Experimental observations of a left-handed material that obeys Snell's law [J].

Houck, AA ;

Brock, JB ;

Chuang, IL .

PHYSICAL REVIEW LETTERS, 2003, 90 (13) :4

[17]

Kantorovich L.V., 1958, APPROXIMATE METHODS

[18]

KHARADLY MMZ, 1962, P ELECT ENG, V100, P199

[19]

Kuo CH, 2004, PHYS REV E, V70, DOI [10.1103/PhysRevE.70.056608, 10.1103/PhysRevE.70.026608]

[20] On the splitting parameter in the Ewald method [J].

Kustepeli, A ;

Martin, AQ .

IEEE MICROWAVE AND GUIDED WAVE LETTERS, 2000, 10 (05) :168-170

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