Results 11 to 20 of about 429,175 (292)

An Adaptive Dispersion Formula for Chromatic Aberration Correction and Polarization Aberration Analyses in Plane Symmetric Optical Systems

open access: yes, 2021
This dissertation consists of two parts: an adaptive dispersion formula and polarization aberration functions for general plane symmetric optical systems. First, an adaptive glass dispersion formula is defined and discussed. The formula exhibits superior
Li, Chia-Ling
core   +5 more sources

Polarization aberration in astronomical telescopes [PDF]

open access: yesSPIE Proceedings, 2015
The point spread function (PSF) for astronomical telescopes and instruments depends not only on geometric aberrations and scalar wave diffraction, but also on the apodization and wavefront errors introduced by coatings on reflecting and transmitting surfaces within the optical system.
Chipman, Russell A.   +2 more
openaire   +2 more sources

Birefringent coating to remove polarization aberrations

open access: yesOptics Express, 2022
Polarization aberrations are found in most optical components due to a materials-differing response to s- and p-polarizations. This differing response can manifest either as diattenuation, retardance, or both. Correction of polarization aberrations, such as these, are critical in many applications such as interferometry, polarimetry, display, and high ...
Sawyer Miller, Linan Jiang, Stanley Pau
openaire   +2 more sources

Crosstalk-free achromatic full Stokes imaging polarimetry metasurface enabled by polarization-dependent phase optimization

open access: yesOpto-Electronic Advances, 2022
Imaging polarimetry is one of the most widely used analytical technologies for object detection and analysis. To date, most metasurface-based polarimetry techniques are severely limited by narrow operating bandwidths and inevitable crosstalk, leading to ...
Yaxin Zhang   +12 more
doaj   +1 more source

The Truth on Gravity and Terrestrial Global Warming. Part 1: The Quantum Gravity Field [PDF]

open access: yesINCAS Bulletin, 2022
Although during the last century both experimental and computational technology progress has accumulated solid factual information on the deeper knowledge of our actual world, the previous approaches derived in most cases from the unfinished Einstein’s ...
Horia DUMITRESCU   +2 more
doaj   +1 more source

Space Object and Background Polarization Models and Detectability Analysis

open access: yesApplied Sciences, 2022
During the daytime, the commonly used optical intensity imaging techniques for spacecraft detection usually lead to poor detection due to strong background noise.
Qiang Fu   +4 more
doaj   +1 more source

Verification of Polarization Matching on the Hologram Recording Plane for the Implementation of an Optimized Digital Hologram Printing System

open access: yesFrontiers in Physics, 2022
Conventional studies on digital hologram printer have mainly been conducted on image generation and reconstruction such as multi-view image generation method, computer-generated hologram (CGH) and a method of displaying a wave-front for a 3D object ...
Leehwan Hwang   +6 more
doaj   +1 more source

STUDY OF BIREFRINGENCE INFLUENCE ON IMAGE QUALITY OF PHOTOLITHOGRAPHY SYSTEMS IN VIEW OF PARTIALLY-COHERENT LIGHT SOURCE [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2015
Subject of study. A vector model for conversion of electromagnetic radiation in optical systems is considered, taking into account the influence of birefringence, as well as partially coherent illumination. Model.
E. A. Nikulina, V. A. Zverev
doaj   +1 more source

Giant piezoelectric response in Ho-doped PbMg1/3Nb2/3TiO3 relaxor ferroelectric single crystals via in-situ neutron scattering

open access: yesMaterials Today Advances, 2023
The complex chemical and structural heterogeneity of relaxor ferroelectrics has made the origins of the giant piezoresponse extremely difficult to understand. Here, we successfully grew Ho-doped Pb(Mg1/3Nb2/3)O3–PbTiO3 (Ho-PMNT) single crystals with even
Yuanhao Lu   +6 more
doaj   +1 more source

HabEx polarization ray trace and aberration analysis [PDF]

open access: yes, 2018
The flux difference between a terrestrial exoplanet and a much brighter nearby star creates an enormous optical design challenge for space-based imaging systems.
Kupinski, Meredith K.   +7 more
core   +1 more source

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