Results 21 to 30 of about 26,055 (247)

TOTEM: The experiment to measure the total proton-proton cross section at LHC [PDF]

open access: yes, 2006
The current large uncertainty on the extrapolation of the proton-proton total cross section at the LHC energy will be resolved by the precise measurement by the TOTEM experiment. Its accurate studies on the basic properties of proton-proton collisions at
Altunbas   +4 more
core   +3 more sources

GDOESII: Software for design of diffractive optical elements and phase mask conversion to GDSII lithography files

open access: yesSoftwareX, 2019
We develop an open source software “GDoeSII” for the simulation of Fresnel (near field) and Fraunhofer (far field) diffraction integrals of diffractive optical elements (DOE).
Raghu Dharmavarapu   +2 more
doaj   +1 more source

Transferability of Diffractive Structure in the Compression Molding of Chalcogenide Glass

open access: yesMicromachines, 2023
This study investigates the use of Ge28Sb12Se60 chalcogenide glass for the compression molding of an infrared optical lens with a diffractive structure.
Byeong-Rea Son   +3 more
doaj   +1 more source

Metaoptics for the spin-controlled generation of orbital angular momentum vector beams [PDF]

open access: yesEPJ Web of Conferences, 2023
Moving from diffractive optics to metalenses, novel tools for structuring light are provided for the integration in compact optical layouts. Here we propose new metaoptics designed for light shaping into structured beams implementing on-demand vectorial ...
Vogliardi Andrea   +4 more
doaj   +1 more source

Orbital angular momentum 25 years on [invited] [PDF]

open access: yes, 2017
Twenty-five years ago Allen, Beijersbergen, Spreeuw, and Woerdman published their seminal paper establishing that light beams with helical phase-fronts carried an orbital angular momentum. Previously orbital angular momentum had been associated only with
Padgett, Miles J.
core   +1 more source

Diffractive optics approach towards subwavelength pixels

open access: yes, 2018
Pixel size in cameras and other refractive imaging devices is typically limited by the free-space diffraction. However, a vast majority of semiconductor-based detectors are based on materials with substantially high refractive index.
Fan, Bo   +2 more
core   +1 more source

Near-infrared Spectrum Characteristics of Micro-Nano Material Based Diffraction Optical Devices

open access: yesMedžiagotyra
Diffractive optics devices are optical devices in which the amplitude or phase of the incident light is spatially modulated periodically by a micro-nanomaterial based structure.
Zhao JIN   +8 more
doaj   +1 more source

Alternative Design of Binary Phase Diffractive Optical Element with Non-π Phase Difference

open access: yesApplied Sciences, 2021
It was found that binary phase diffractive optical element (DOE) with non-π phase difference had higher diffraction efficiency and adjustable zero-order intensity than a 0-π one.
Cheng Xu   +3 more
doaj   +1 more source

Takagi-Taupin Description of X-ray Dynamical Diffraction from Diffractive Optics with Large Numerical Aperture

open access: yes, 2007
We present a formalism of x-ray dynamical diffraction from volume diffractive optics with large numerical aperture and high aspect ratio, in an analogy to the Takagi-Taupin equations for strained single crystals.
A. Authier   +15 more
core   +1 more source

Design, Analysis, and Manufacturing of Diffractive Achromatic Optical Systems

open access: yesMicromachines
The increasing resolution requirements of imaging optical systems must be satisfied by expanding the aperture of the optical system according to Rayleigh’s criterion, and larger apertures of conventional refractive/reflective optics place a greater ...
Yidi Zheng   +5 more
doaj   +1 more source

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