Advances in Mechanical Engineering, 2017 This article demonstrates the fabrication of large-scale micro-structures by two-photon polymerization with an integrated long-stroke precision stage. We first design a three-axial stage that combines a piezoelectric transducer stage and a stepper-motor ...
Fu-Cheng Wang +3 more
doaj +1 more source
Generation of a Focused THz Vortex Beam from a Spintronic THz Emitter with a Helical Fresnel Zone Plate. [PDF]
Nanomaterials (Basel), 2023 Zhang X +5 more
europepmc +1 more source
Fresnel Fibres with Omnidirectional Zone Cross-sections
Optics Express, 2007 Fresnel fibres with silica zones resembling omnidirectional structures with self-imaging properties are proposed. Numerical simulation is carried out on a large air hole Fresnel fibre with a triadic Cantor fractal zone cross-section (FZC). The results show the transmission bandgap of these fibres widens and the practical confinement loss decreases with
Cicero, Martelli, John, Canning
openaire +2 more sources
Design of Binary-Sequence Zone Plates in High Wavelength Domains
Sensors, 2018 The design of zone plates is an important topic in many areas of physics, such as optics, X-rays, microwaves or ultrasonics. In this paper, a zone plate design method, which provides high flexibility in the shaping of the focusing profile, is analyzed ...
José Miguel Fuster +3 more
doaj +1 more source
Fresnel Zone Plate Telescopes as high resolution imaging devices [PDF]
, 2009 Sandip K. Chakrabarti +4 more
openalex +1 more source
Axial intensity distribution of a micro-Fresnel zone plate at an arbitrary numerical aperture
, 2021 Qiang Liu +5 more
openalex +1 more source
Terahertz Harmonic Operation of Microwave Fresnel Zone Plate Lens and Antenna: Frequency Filtering and Space Resolution Properties [PDF]
, 2011 H.D. Hristov
openalex +1 more source
Analysis of Predistortion Techniques on Fresnel Zone Plates in Ultrasound Applications. [PDF]
Sensors (Basel), 2021 Fuster JM +3 more
europepmc +1 more source
Direct-write X-ray lithography using a hard X-ray Fresnel zone plate [PDF]
, 2015 Su Yong Lee +5 more
openalex +1 more source
Experimental investigation of a near-field focusing performance of the IP-Dip polymer based 2D and 3D Fresnel zone plate geometries fabricated using 3D laser lithography coated with hyperbolic dispersion surface layered metamaterial. [PDF]
Nanophotonics, 2023 Micek P +5 more
europepmc +1 more source