Results 81 to 90 of about 1,516 (173)

Model of in-situ focusing of extreme ultraviolet high-order harmonics from a nanostructured MgO surface

JPhys Photonics
We present a numerical model for the in-situ generation and focusing of extreme-ultraviolet (XUV) high harmonics via a Fresnel zone plate etched into a dielectric (MgO) surface.
Parnia Bastani, Aleksey Korobenko, Vedran Jelic, Jesse Thompson, Anton Rudenko, Francois Légaré, Lora Ramunno, Giulio Vampa   +7 more
doaj   +1 more source

Using a multimode fiber to improve data transfer rates

Компьютерная оптика
The possibilities of using spatial separation of channels in a multimode fiber are considered. When information is transmitted through a multimode fiber, a large number of errors arise due to mode dispersion, mode-to-mode interference and other sources ...
A.L. Timofeev , A.K. Sultanov, I.K. Meshkov, A.R. Gizatulin, V.K. Bagmanov   +4 more
doaj   +1 more source

Reference Phase of Fresnel Zone Plates

, 2003
The standard zone plate assumes that the shortest ray connecting a radiation source and a detection point has a phase of 0 deg thereby defining a reference phase. Here we examine the experimental consequences of varying this reference phase from 0 deg to 360 deg. It is concluded that reference phase is an intrinsic and useful property of zone plates.
openaire   +2 more sources

Fresnel zone plate imaging

Fresnel zone plate imaging
1978 【要旨】
openaire  

Acoustic Focusing Enhancement In Fresnel Zone Plate Lenses. [PDF]

Sci Rep, 2019
Tarrazó-Serrano D, Pérez-López S, Candelas P, Uris A, Rubio C.   +4 more
europepmc   +1 more source

Application of Fresnel Zone Plate Focused Beam to Optimized Sensor Design for Pulse-Echo Harmonic Generation Measurements. [PDF]

Sensors (Basel), 2019
Jeong H, Shin H, Zhang S, Li X, Cho S.
europepmc   +1 more source

Towards Millimeter-wavelength: Transmission-Mode Fresnel-Zone Plate Lens Antennas using Plastic Material Porosity Control in Homogeneous Medium. [PDF]

Sci Rep, 2018
Pourahmadazar J, Denidni TA.
europepmc   +1 more source

Optimization of Soft X-Ray Fresnel Zone Plate Fabrication Through Joint Electron Beam Lithography and Cryo-Etching Techniques. [PDF]

Nanomaterials (Basel)
Labani M, Clericò V, Diez E, Gatti G, Amado M, Pérez-Rodríguez A.   +5 more
europepmc   +1 more source

Author Correction: Towards Millimeter-wavelength: Transmission-Mode Fresnel-Zone Plate Lens Antennas using Plastic Material Porosity Control in Homogeneous Medium. [PDF]

Sci Rep, 2018
Pourahmadazar J, Denidni TA.
europepmc   +1 more source

Micro-Fresnel-Zone-Plate Array on Flexible Substrate for Large Field-of-View and Focus Scanning. [PDF]

Sci Rep, 2015
Moghimi MJ, Fernandes J, Kanhere A, Jiang H.   +3 more
europepmc   +1 more source