Polarization-Independent Metasurface Lens Based on Binary Phase Fresnel Zone Plate [PDF]
Nanomaterials, 2020 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.
Baine J, Tang J, Li X.
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Simulation of Fresnel Zone Plate Imaging Performance with Number of Zones. [PDF]
Sensors (Basel), 2020 In recent years, integral imaging, a promising three-dimensional imaging technology, has attracted more and more attention for its broad applications in robotics, computational vision, and medical diagnostics. In the visible spectrum, an integral imaging system can be easily implemented by inserting a micro-lens array between a image formation optic ...
Li Y, de La Rochefoucauld O, Zeitoun P.
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Silicon Fresnel Zone Plate Metalens with Subwavelength Gratings. [PDF]
Sensors (Basel), 2023 Metalenses are planar optical components that have demonstrated immense potential for integrated optics. In particular, they are capable of high-efficiency subwavelength focusing without the bulkiness of traditional lenses.
Fraser W, Ye WN.
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Study of the Off-Axis Fresnel Zone Plate of a Microscopic Tomographic Aberration. [PDF]
Sensors (Basel), 2022 A tomographic microscopy system can achieve instantaneous three-dimensional imaging, and this type of microscopy system has been widely used in the study of biological samples; however, existing chromatographic microscopes based on off-axis Fresnel zone ...
Yang L +11 more
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Bifocal Ultrasound Focusing Using Bi-Fresnel Zone Plate Lenses. [PDF]
Sensors (Basel), 2020 In this work, we present a bifocal Fresnel zone plate (BiFZP) capable of generating focusing profiles with two different foci. The performance of the BiFZP is demonstrated in the ultrasound domain, with a very good agreement between the experimental ...
Pérez-López S +5 more
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Acoustic Focusing Enhancement In Fresnel Zone Plate Lenses. [PDF]
Sci Rep, 2019 The development of flat acoustic lenses for different applications such as biomedical engineering is a topic of great interest. Flat lenses like Fresnel Zone Plates (FZPs) are capable of focusing energy beams without the need of concave or convex ...
Tarrazó-Serrano D +4 more
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Towards Millimeter-wavelength: Transmission-Mode Fresnel-Zone Plate Lens Antennas using Plastic Material Porosity Control in Homogeneous Medium. [PDF]
Sci Rep, 2018 We present two transmission-mode dielectric Fresnel-Zone Plate Lens (FZPL) antennas for use within the V-band spectrum. The proposed FZPs are realized via pure plastic material using two different additive manufacturing processes. The proposed FZP lenses
Pourahmadazar J, Denidni TA.
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High-throughput synthesis of modified Fresnel zone plate arrays via ion beam lithography. [PDF]
Beilstein J Nanotechnol, 2018 Fresnel zone plates (FZP) are diffractive photonic devices used for high-resolution imaging and lithography at short wavelengths. Their fabrication requires nano-machining capabilities with exceptional precision and strict tolerances such as those ...
Keskinbora K +5 more
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Sector-based Fresnel zone plate with extended depth of focus
Optics and Laser Technology, 2022 FRANCISCO JOSÉ Torcal-Milla +2 more
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Surface Passivation of HgTe Nanocrystals Enabling E<sub>G</sub>/2 Open-Circuit Voltage and Their Coupling to Dielectric Cavity for Narrow Detection. [PDF]
Adv MaterThis article explores how the integration of a thin shell, combined with optimized surface chemistry, enables the design of photodiodes based on short‐wave infrared HgTe nanocrystals. These photodiodes achieve an open‐circuit voltage greater than half the optical bandgap, which drastically reduces dark current. The article also explores the integration
Colle A +17 more
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