scholarly journals Polarization-Independent Metasurface Lens Based on Binary Phase Fresnel Zone Plate

Nanomaterials ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1467
Author(s):  
Xing Li ◽  
Jing Tang ◽  
Jonathan Baine
Keyword(s):  
Fresnel Zone ◽  
Incident Light ◽  
Polarization State ◽  
Zone Plate ◽  
Visible Range ◽  
Fresnel Zone Plate ◽  
Binary Phase ◽  
Nanophotonic Devices ◽  
Potential Applications ◽  
Polarization Independent

Based on the binary phase Fresnel zone plate (FZP), a polarization-independent metasurface lens that is able to focus incident light with any polarization state, including circular, linear, and elliptical polarizations, has been proposed and investigated. We demonstrate that the metasurface lens consisting of metal subwavelength slits can operate in a wide bandwidth in the visible range, and has a higher focusing efficiency than that of an amplitude FZP lens without phase modulation. A multi-focus FZP metasurface lens has also been designed and investigated. The proposed lens can provide potential applications in integrated nanophotonic devices without polarization limitations.

Binary-phase Fresnel zone plate arrays for high-power laser beam smoothing

1995 ◽  
Author(s):  
David A. Pepler ◽  
Colin N. Danson ◽  
Ian N. Ross ◽  
S. A. Rivers ◽  
Stanley A. Edwards ◽  
...  
Keyword(s):  
Laser Beam ◽  
High Power ◽  
Fresnel Zone ◽  
Zone Plate ◽  
Fresnel Zone Plate ◽  
High Power Laser ◽  
Power Laser ◽  
Binary Phase ◽  
Fresnel Zone Plate Arrays

scholarly journals Diffraction theory of high numerical aperture subwavelength circular binary phase Fresnel zone plate

2014 ◽  
Vol 22 (22) ◽  
pp. 27425 ◽  
Author(s):  
Yaoju Zhang ◽  
Hongchang An ◽  
Dong Zhang ◽  
Guihua Cui ◽  
Xiukai Ruan
Keyword(s):  
Fresnel Zone ◽  
Numerical Aperture ◽  
Diffraction Theory ◽  
Zone Plate ◽  
Fresnel Zone Plate ◽  
High Numerical Aperture ◽  
Binary Phase

Study of focusing parameters of wavelength-scale binary phase Fresnel zone plate

2021 ◽  
Author(s):  
Yuri E Geints ◽  
Ekaterina K. Panina ◽  
Igor V Minin ◽  
Oleg V Minin
Keyword(s):  
Fresnel Zone ◽  
Zone Plate ◽  
Fresnel Zone Plate ◽  
Binary Phase ◽  
Wavelength Scale

scholarly journals Design of Polarization-Independent and Wide-Angle Broadband Absorbers for Highly Efficient Reflective Structural Color Filters

Materials ◽  
2019 ◽  
Vol 12 (7) ◽  
pp. 1050 ◽  
Author(s):  
Kyu-Tae Lee ◽  
Daeshik Kang ◽  
Hui Park ◽  
Dong Park ◽  
Seungyong Han
Keyword(s):  
High Efficiency ◽  
Incident Light ◽  
Polarization State ◽  
Visible Range ◽  
Broadband Absorption ◽  
Research Areas ◽  
Simple Strategy ◽  
Planar Structures ◽  
Color Filters ◽  
Polarization Independent

We propose a design of angle-insensitive and polarization-independent reflective color filters with high efficiency (>80%) based on broad resonance in a Fabry–Pérot cavity where asymmetric metal-dielectric-metal planar structures are employed. Broadband absorption properties allow the resonance in the visible range to remain nearly constant over a broad range of incident angles of up to 40° for both s- and p-polarizations. Effects of the angles of incidence and polarization state of incident light on the purity of the resulting colors are examined on the CIE 1931 chromaticity diagram. In addition, higher-order resonances of the proposed color filters and their electric field distributions are investigated for improved color purity. Lastly, the spectral properties of the proposed structures with different metallic layers are studied. The simple strategy described in this work could be adopted in a variety of research areas, such as color decoration devices, microscopy, and colorimetric sensors.

scholarly journals Monolithic integration of binary-phase fresnel zone plate objectives on 2-axis scanning micromirrors for compact microscopes

2012 ◽  
Vol 20 (6) ◽  
pp. 6657 ◽  
Author(s):  
Youmin Wang ◽  
Karthik Kumar ◽  
Lingyun Wang ◽  
Xiaojing Zhang
Keyword(s):  
Fresnel Zone ◽  
Monolithic Integration ◽  
Zone Plate ◽  
Fresnel Zone Plate ◽  
Binary Phase

scholarly journals Generation of axial line-focus using a binary-phase Fresnel zone plate

2005 ◽  
Vol 54 (5) ◽  
pp. 2030
Author(s):  
Li Yu-Tong ◽  
Zhang Jie ◽  
Lu Xin ◽  
Jin Zhan ◽  
Pepler D. A. ◽  
...  
Keyword(s):  
Fresnel Zone ◽  
Zone Plate ◽  
Fresnel Zone Plate ◽  
Axial Line ◽  
Binary Phase ◽  
Line Focus
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