Optimized square Fresnel zone plates for microoptics applications [PDF]
, 2009 Polygonal Fresnel zone plates with a low number of sides have deserved attention in micro and nanoptics, because they can be straightforwardly integrated in photonic devices, and, at the same time, they represent a balance between the high-focusing ...
Alda, Javier +3 more
core +1 more source
Generalised photon sieves: fine control of complex fields with simple pinhole arrays [PDF]
, 2015 Spatial shaping of light beams has led to numerous new applications in fields such as imaging, optical communication, and micromanipulation. However, structured radiation is less well explored beyond visible optics, where methods for shaping fields are ...
Li, F. +3 more
core +1 more source
A New GIS-Based Algorithm to Support Initial Transmitter Layout Design in Open-Pit Mines
Energies, 2018 In this paper, a new geographic information systems (GIS)-based algorithm is proposed for supporting the initial design of a wireless communications system in open-pit mines.
Jieun Baek, Yosoon Choi
doaj +1 more source
High resolution imaging with Fresnel interferometric arrays: suitability for exoplanet detection [PDF]
, 2005 We propose a new kind of interferometric array that yields images of high dynamic range and large field. The numerous individual apertures in this array form a pattern related to a Fresnel zone plate. This array can be used for astrophysical imaging over
Aime +10 more
core +1 more source
Analysis, Design and Fabrication of centimeter-wave Dielectric Fresnel Zone Plate Lens and reflector [PDF]
, 2005 Fresnel lens has a long history in optics. This concept at non-optical wavelengths is also applicable. In this paper we report design and fabrication of a half and quarter wave dielectric Fresnel lens made of Plexiglas, and a Fresnel reflector at 11.1 ...
A. Mahmoudi +11 more
core +2 more sources
On the Design of Soret Zone Plates Based on Binary Sequences Using Directional Transducers
Sensors, 2021 In this work, we analyze the effect of the distribution of transparent Fresnel regions over the focusing profile of Soret Zone Plates (SZP) based on binary sequences. It is shown that this effect becomes very significant in those fields where directional
Pilar Candelas +2 more
doaj +1 more source
COMPUTER-GENERATED HOLOGRAM ETCHED IN GAAS FOR OPTICAL INTERCONNECTION OF VLSI CIRCUITS [PDF]
, 1992 By integrating, on a wafer plane, GaAs semiconductor optoelectronic modulators and detectors with computer-generated holograms between then, the potential for in-plane interconnections is proposed.
CAREY, CD +4 more
core +1 more source
Lacunar fractal photon sieves [PDF]
, 2007 We present a new family of diffractive lenses whose structure is based on the combination of two concepts: photon sieve and fractal zone plates with variable lacunarity. The focusing properties of different members of this family are examined.
Andersen +18 more
core +2 more sources
Radio Detection of High Energy Particles: Coherence Versus Multiple Scales [PDF]
, 2000 Radio Cherenkov emission underlines detection of high energy particles via a signal growing like the particle-energy-squared. Cosmic ray-induced electromagnetic showers are a primary application.
A. L. Provorov +27 more
core +3 more sources
Radio Physics and Radio Astronomy, 2014 For the case of wave scattering by turbulent atmosphere, the asymtotics of three-fold integrals that determine the intensity of the scattered field are found.
A. S. Bryukhovetski
doaj +1 more source