Three-dimensional subwavelength imaging by a photonic-crystal flat lens using negative refraction at microwave frequencies

被引：98

作者：

Lu, ZL ^{[1
]}

Murakowski, JA ^{[1
]}

Schuetz, CA ^{[1
]}

Shi, SY ^{[1
]}

Schneider, GJ ^{[1
]}

Prather, DW ^{[1
]}

机构：

[1] Univ Delaware, Dept Elect & Comp Engn, Newark, DE 19716 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.95.153901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We experimentally demonstrate subwavelength resolution imaging at microwave frequencies by a three-dimensional (3D) photonic-crystal flat lens using full 3D negative refraction. The photonic crystal was fabricated in a layer-by-layer process. A subwavelength pinhole source and a dipole detector were employed for the measurement. By point-by-point scanning, we obtained the image of the pinhole source shown in both amplitude and phase, which demonstrated the imaging mechanism and subwavelength feature size in all three dimensions. An image of two pinhole sources with subwavelength spacing showed two resolved spots, which further verified subwavelength resolution.

引用

页数：4

共 17 条

[1] Three-dimensional photonic crystal of negative refraction achieved by interference lithography [J].

Ao, XY ;

He, SL .

OPTICS LETTERS, 2004, 29 (21) :2542-2544

[2] Negative refraction and left-handed behavior in two-dimensional photonic crystals [J].

Foteinopoulou, S ;

Soukoulis, CM .

PHYSICAL REVIEW B, 2003, 67 (23)

[3] Left-handed materials do not make a perfect lens [J].

Garcia, N ;

Nieto-Vesperinas, M .

PHYSICAL REVIEW LETTERS, 2002, 88 (20) :4

[4] Is there an experimental verification of a negative index of refraction yet? [J].

Garcia, N ;

Nieto-Vesperinas, M .

OPTICS LETTERS, 2002, 27 (11) :885-887

[5] Phase shift on reflection from metallodielectric photonic bandgap materials [J].

Golosovsky, M ;

Neve-Oz, Y ;

Davidov, D ;

Frenkel, A .

PHYSICAL REVIEW B, 2004, 70 (11) :115105-1

[6] Block-iterative frequency-domain methods for Maxwell's equations in a planewave basis [J].

Johnson, SG ;

Joannopoulos, JD .

OPTICS EXPRESS, 2001, 8 (03) :173-190

[7]

LU Z, 2005, APPL PHYS LETT, V87, P17903

[8] Experimental demonstration of negative refraction imaging in both amplitude and phase [J].

Lu, ZL ;

Shi, SY ;

Schuetz, CA ;

Prather, DW .

OPTICS EXPRESS, 2005, 13 (06) :2007-2012

[9] All-angle negative refraction in a three-dimensionally periodic photonic crystal [J].

Luo, CY ;

Johnson, SG ;

Joannopoulos, JD .

APPLIED PHYSICS LETTERS, 2002, 81 (13) :2352-2354

[10] Subwavelength imaging in photonic crystals [J].

Luo, CY ;

Johnson, SG ;

Joannopoulos, JD ;

Pendry, JB .

PHYSICAL REVIEW B, 2003, 68 (04)

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