Effect of losses and dispersion on the focusing properties of left-handed media

被引：26
作者：
Marqués, R [1 ]
Baena, J [1 ]
机构：
[1] Univ Seville, Dept Elect & Electromagnet, E-41012 Seville, Spain
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2004年 / 41卷 / 04期
关键词：
left-handed media; negative refractive index; perfect lens;
D O I：
10.1002/mop.20119
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
By means of an analysis of the field radiated by a point source placed in front of an infinite left-handed slab, the effect off losses and dispersion on the focusing properties of continuous left-handed media are analyzed. It is shown that subwavelength focusing of point-like quasi-monochromatic sources can be achieved by using physical left-handed slabs, provided some conditions are fulfilled. These conditions tire qualitative and quantitatively analyzed. Numerical examples that show the accuracy of this analysis are provided. Finally, the proposed electromagnetic analysis and the geometrical Veselago's demonstration of over-wavelength focusing by left-handed slabs are found to be mutually consistent. (C) 2004 Wiley Periodicals, Inc.
引用
收藏
页码：290 / 294
页数：5
相关论文
共 12 条
  • [1] Collin R., 1991, FIELD THEORY GUIDED
  • [2] GARCIA N, 2002, PHYS REV LETT, V88
  • [3] Left-handed-media simulation and transmission of EM waves in subwavelength split-ring-resonator-loaded metallic waveguides -: art. no. 183901
    Marqués, R
    Martel, J
    Mesa, F
    Medina, F
    [J]. PHYSICAL REVIEW LETTERS, 2002, 89 (18) : 1 - 183901
  • [4] A new 2D isotropic left-handed metamaterial design:: Theory and experiment
    Marqués, R
    Martel, J
    Mesa, F
    Medina, F
    [J]. MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2002, 35 (05) : 405 - 408
  • [5] Negative refraction makes a perfect lens
    Pendry, JB
    [J]. PHYSICAL REVIEW LETTERS, 2000, 85 (18) : 3966 - 3969
  • [6] Experimental verification of a negative index of refraction
    Shelby, RA
    Smith, DR
    Schultz, S
    [J]. SCIENCE, 2001, 292 (5514) : 77 - 79
  • [7] Microwave transmission through a two-dimensional, isotropic, left-handed metamaterial
    Shelby, RA
    Smith, DR
    Nemat-Nasser, SC
    Schultz, S
    [J]. APPLIED PHYSICS LETTERS, 2001, 78 (04) : 489 - 491
  • [8] Limitations on subdiffraction imaging with a negative refractive index slab
    Smith, DR
    Schurig, D
    Rosenbluth, M
    Schultz, S
    Ramakrishna, SA
    Pendry, JB
    [J]. APPLIED PHYSICS LETTERS, 2003, 82 (10) : 1506 - 1508
  • [9] Composite medium with simultaneously negative permeability and permittivity
    Smith, DR
    Padilla, WJ
    Vier, DC
    Nemat-Nasser, SC
    Schultz, S
    [J]. PHYSICAL REVIEW LETTERS, 2000, 84 (18) : 4184 - 4187
  • [10] Wave refraction in negative-index media: Always positive and very inhomogeneous
    Valanju, PM
    Walser, RM
    Valanju, AP
    [J]. PHYSICAL REVIEW LETTERS, 2002, 88 (18) : 4
12