Results 21 to 30 of about 454,356 (195)

Aberration corrected STEM techniques to investigate polarization in ferroelectric domain walls and vortices

open access: yesAPL Materials, 2021
Ferroelectric domain wall (DW) based nano-electronics is an emerging new field of research. It is only recently with advancements in electron and atomic force microscopy instrumentation that the complex nature of these 2D entities can be probed.
Kalani Moore   +2 more
doaj   +1 more source

Analysis of Chromatic Aberration Effects in Triple-Junction Solar Cells Using Advanced Distributed Models [PDF]

open access: yes, 2011
The consideration of real operating conditions for the design and optimization of a multijunction solar cell receiver-concentrator assembly is indispensable.
Espinet González, Pilar   +8 more
core   +1 more source

Polarization compensation of Fresnel aberrations in telescopes [PDF]

open access: yesSPIE Proceedings, 2011
Large aperture space telescopes are built with low F# s to accommodate the mechanical constraints of launch vehicles and to reduce resonance frequencies of the on-orbit system. Inherent with these low F# s is Fresnel polarization which affects image quality.
Clark, Natalie, Breckinridge, James B.
openaire   +2 more sources

HabEx polarization ray trace and aberration analysis

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

Polarization Ray Tracing

open access: yes, 2011
A three-by-three polarization ray tracing matrix method is developed to calculate the polarization transformations associated with ray paths through optical systems. The relationship between the three-by-three polarization ray tracing matrix P method and
Yun, Garam
core   +4 more sources

Broadband achromatic mid-infrared metalens with polarization-insensitivity

open access: yesAIP Advances, 2022
Metasurfaces have shown excellent ability in manipulating light fields. However, the intrinsic chromatic aberration impairs the quality of their broadband operation, which is a serious problem restricting the application of metadevices, especially ...
Chenchen Sha   +3 more
doaj   +1 more source

Aberration-corrected large-scale hybrid metalenses [PDF]

open access: yes, 2021
Hybrid components combining the optical power of a refractive and a diffractive optical system can form compact doublet lenses that correct various aberrations.
Sawant, Rajath,   +24 more
core   +1 more source

Extended depth of focus using polarization-coded binary phase mask

open access: yesAdvanced Optical Technologies
IntroductionWe present a polarization-coded binary phase mask based on spherical aberration (BPM-SA), which is numerically investigated to extend the depth of focus.MethodsFirst, we generate the baseline binary phase mask by binarizing the fourth-order ...
Meera Nitwal, Nandan Singh Bisht
doaj   +1 more source

Research on Polarization Phase Diversity Method for Cophase Errors and Polarization Aberrations in Sparse Aperture Optical Systems

open access: yesPhotonics
Sparse aperture optical systems employ separated subapertures to achieve equivalent large aperture high resolution imaging, but they are also more susceptible to the combined effects of cophase errors and polarization aberrations, which lead to point ...
Xiyu Liu   +4 more
doaj   +1 more source

Correction of Aberrations via Polarization in Single Layer Metalenses

open access: yesAdvanced Optical Materials, 2022
AbstractThe correction of multiple aberrations in an optical system requires different optical elements, which increases its cost and complexity. Metasurfaces hold great promise to providing new functionality for miniaturized and low‐cost optical systems.
Augusto Martins   +8 more
openaire   +2 more sources

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