Anisotropic and omnidirectional focusing in Luneburg lens structure with gradient photonic crystals

被引：8

作者：

Zhao, Yuan-Yuan ^{[1
,2
,3
]}

Zhang, Yong-Liang ^{[1
,2
]}

Zheng, Mei-Ling ^{[1
,2
]}

Dong, Xian-Zi ^{[1
,2
]}

Duan, Xuan-Ming ^{[1
,2
,3
]}

Zhao, Zhen-Sheng ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Tech Inst Phys & Chem, Lab Organ NanoPhoton, 29 Zhongguancun East Rd, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Tech Inst Phys & Chem, CAS Key Lab Bioinspired Mat & Interfacial Sci, 29 Zhongguancun East Rd, Beijing 100190, Peoples R China

[3] Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Shuitu Technol Dev Zone, 266 Fangzheng Ave, Chongqing 400714, Peoples R China

来源：

JOURNAL OF OPTICS | 2017年 / 19卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Luneburg lens; photonic crystals; metamaterial; nanophotonics; gradient index; INDEX; METAMATERIALS; SINGULARITIES;

D O I：

10.1088/2040-8986/19/1/015605

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a flexible design for implementation of the Luneburg lens with gradient photonic crystals. The full-wave simulation results demonstrate the excellent performance of omnidirectional focusing of the designed Luneburg lens over a broad frequency band, and firstly exhibit anisotropic focusing in the designed Luneburg lens with a specific frequency band. In this study, our effort is focused on figuring out the operating wavelength range where the effective medium approximation theory is applicable, and the mechanism for generating anisotropic and omnidirectional focusing in Luneburg lens structure.

引用

页数：7

共 50 条

[1] Graded Photonic Crystals for Luneburg Lens
Gaufillet, F.
Akmansoy, E.
IEEE PHOTONICS JOURNAL, 2016, 8 (01):
[2] Phononic crystal Luneburg lens for omnidirectional elastic wave focusing and energy harvesting
Tol, S.
Degertekin, F. L.
Erturk, A.
APPLIED PHYSICS LETTERS, 2017, 111 (01)
[3] Negative Luneburg lens based on the graded annular photonic crystals
Xia, Feng
Li, Shixia
Zhang, Kun
Jiao, Lipeng
Kong, Weijin
Dong, Lifeng
Yun, Maojin
PHYSICA B-CONDENSED MATTER, 2018, 545 : 233 - 236
[4] Luneburg lens composed of sunflower-type graded photonic Crystals
Sun, Xiao-Hong
Wu, Yu-Long
Liu, Wei
Hao, Yu
Jiang, Liu-Di
OPTICS COMMUNICATIONS, 2014, 315 : 367 - 373
[5] SOUND FOCUSING BY DOUBLE ACOUSTIC LUNEBURG LENS
Kim, Sang-Hoon
PROCEEDINGS OF THE 22ND INTERNATIONAL CONGRESS ON SOUND AND VIBRATION: MAJOR CHALLENGES IN ACOUSTICS, NOISE AND VIBRATION RESEARCH, 2015, 2015,
[6] Sound focusing by a broadband acoustic Luneburg lens
Yuan, Baoguo
Liu, Jiyu
Long, Houyou
Cheng, Ying
Liu, Xiaojun
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 2022, 151 (03): : 2238 - 2244
[7] Photonic band structure and omnidirectional band gap in anisotropic superlattice
Ouchani, N
Bria, D
Nougaoui, A
Djafari-Rouhani, B
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2006, 90 (10) : 1445 - 1457
[8] Focusing concave lens using photonic crystals with magnetic materials
Yang, SY
Hong, CY
Yang, HC
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 2006, 23 (04) : 956 - 959
[9] Modified structural Luneburg lens for broadband focusing and collimation
Zhao, Liuxian
Lai, Changquan
Yu, Miao
MECHANICAL SYSTEMS AND SIGNAL PROCESSING, 2020, 144
[10] Structural Luneburg lens for broadband ultralong subwavelength focusing
Zhao, Liuxian
Lai, Changquan
Yu, Miao
MECHANICAL SYSTEMS AND SIGNAL PROCESSING, 2023, 182

← 1 2 3 4 5 →