Reflective flat lens with a surface plasmonic metasurface formed by rectangular annular arrays

2014 ◽  
Author(s):  
Ruibin Li ◽  
Miao Wang ◽  
Chinhua Wang
Keyword(s):  
Flat Lens ◽  
Annular Arrays

On-chip multiwavelength achromatic thin flat lens

2021 ◽  
Vol 484 ◽  
pp. 126645
Author(s):  
Wanlin Xie ◽  
Junbo Yang ◽  
Dingbo Chen ◽  
Jie Huang ◽  
Xinpeng Jiang ◽  
...  
Keyword(s):  
Flat Lens ◽  
On Chip

Matched and wideband flat lens antennas using symmetric graded dielectrics

2017 ◽  
Vol 35 (1) ◽  
pp. 73 ◽  
Author(s):  
Mohammad Khalaj-Amirhosseini ◽  
Mohammad-Mahdi Taskhiri
Keyword(s):  
Lens Antennas ◽  
Flat Lens

Wideband hyperbolic flat lens in the Ka-band based on 3D-printing and transformation optics

2021 ◽  
Vol 118 (12) ◽  
pp. 123503
Author(s):  
J. M. Poyanco ◽  
F. Pizarro ◽  
E. Rajo-Iglesias
Keyword(s):  
3D Printing ◽  
Transformation Optics ◽  
Ka Band ◽  
Flat Lens

Design and parametric analysis of the broadband achromatic flat lens

2020 ◽  
Vol 49 (9) ◽  
pp. 20201032-20201032
Author(s):  
肖行健 Xingjian Xiao ◽  
祝世宁 Shining Zhu ◽  
李涛 Tao Li
Keyword(s):  
Parametric Analysis ◽  
Flat Lens

Polarization-independent and super broadband flat lens composed of graded index annular photonic crystals

2019 ◽  
Vol 435 ◽  
pp. 202-211 ◽  
Author(s):  
T. Fathollahi Khalkhali ◽  
M. Alipour-Beyraghi ◽  
M. Lalenejad ◽  
A. Bananej
Keyword(s):  
Photonic Crystals ◽  
Graded Index ◽  
Flat Lens ◽  
Polarization Independent

Comparison of CW beam patterns from segmented annular arrays and squared arrays

2000 ◽  
Vol 85 (1-3) ◽  
pp. 33-37 ◽  
Author(s):  
O Martı́nez ◽  
L.G Ullate ◽  
A Ibáñez
Keyword(s):  
Annular Arrays ◽  
Beam Patterns

scholarly journals NEGATIVE REFRACTION AND SUBWAVELENGTH FOCUSING USING PHOTONIC CRYSTALS

2004 ◽  
Vol 18 (25) ◽  
pp. 1275-1291 ◽  
Author(s):  
EKMEL OZBAY ◽  
KAAN GUVEN ◽  
ERTUGRUL CUBUKCU ◽  
KORAY AYDIN ◽  
B. KAMIL ALICI
Keyword(s):  
Optical Properties ◽  
Photonic Crystals ◽  
Negative Refraction ◽  
Numerical Study ◽  
Effective Index ◽  
Index Of Refraction ◽  
Far Field ◽  
Two Dimensional ◽  
Flat Lens ◽  
Effective Index Of Refraction

In this article, we present an experimental and numerical study of novel optical properties of two-dimensional dielectric photonic crystals (PCs) which exhibit negative refraction. We investigate two mechanisms which utilize the band structure of the PC to generate a negative effective index of refraction (n eff <0) and demonstrate the negative refraction experimentally. To the isotropic extend of n eff , different PC slab structures are employed to focus the radiation of a point source. It is shown experimentally that the PC can generate an image of the source with subwavelength resolution in the vicinity of the PC interface. Using a different PC, one can also obtain a far field focusing. In the latter case, we explicitly show the flat lens behavior of the structure. These examples indicate that PC-based lenses can surpass limitations of conventional lenses and lead to novel optics applications.

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