Results 21 to 30 of about 429,175 (292)

Wide field of view and full Stokes polarization imaging using metasurfaces inspired by the stomatopod eye

Nanophotonics, 2023
Wide field of view and polarization imaging capabilities are crucial for implementation of advanced imaging devices. However, there are still great challenges in the integration of such optical systems.
Liu Jianying, Chu Jinkui, Zhang Ran, Liu Rui, Fu Jiaxin   +4 more
doaj   +1 more source

MAXPEEM: a spectromicroscopy beamline at MAX IV laboratory

Journal of Synchrotron Radiation, 2023
MAXPEEM, a dedicated photoemission electron microscopy beamline at MAX IV Laboratory, houses a state-of-the-art aberration-corrected spectroscopic photoemission and low-energy electron microscope (AC-SPELEEM). This powerful instrument offers a wide range
Yuran Niu, Nikolay Vinogradov, Alexei Preobrajenski, Claudia Struzzi, Brice Sarpi, Lin Zhu, Evangelos Golias, Alexei Zakharov   +7 more
doaj   +1 more source

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

, 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, Algora del Valle, Carlos, Ignacio Rey-Stolle, Carlos Algora, Rey-Stolle Prado, Ignacio, Ivan Garcia, Pilar Espinet-González, Pilar Espinet, García Vara, Iván   +8 more
core   +1 more source

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

APL 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, Ursel Bangert, Michele Conroy   +2 more
doaj   +1 more source

Broadband achromatic mid-infrared metalens with polarization-insensitivity

AIP 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, Wenhui Xiong, Baifu Zhang, Jianping Ding   +3 more
doaj   +1 more source

Aberration-corrected transmission electron microscopy with Zernike phase plates

, 2022
We explore the possibility of applying physical phase plates (PPs) in combination with aberration-corrected transmission electron microscopy. Phase-contrast transfer characteristics are calculated and compared for a thin-film based Zernike PP, a hole ...
Simon Hettler (7454312), Raul Arenal (1558918)   +1 more
core   +1 more source

Polarization compensation of Fresnel aberrations in telescopes [PDF]

SPIE 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

Correction of Aberrations via Polarization in Single Layer Metalenses

Advanced 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, Kezheng Li, Guilherme S. Arruda, Donato Conteduca, Haowen Liang, Juntao Li, Ben‐Hur V. Borges, Thomas F. Krauss, Emiliano R. Martins   +8 more
openaire   +2 more sources

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

Photonics
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, Xin Zhang, Junliu Fan, Baohua Chen, An Xu   +4 more
doaj   +1 more source

Decoding the dynamic extracellular matrix in cancer—3D models and bioscaffolds rewire the rules of tumor progression

FEBS Letters, EarlyView.
Cancer progression is regulated by the dynamic matrix code of the tumor microenvironment, which influences cellular behavior and disease development. Importantly, matrix remodeling in three‐dimensional cancer models more accurately reflects in vivo conditions compared to conventional two‐dimensional systems.
Sylvia Mangani, Konstantinos Spanopoulos, Zoi Piperigkou, Nikos K. Karamanos   +3 more
wiley   +1 more source