scholarly journals Generation of Arbitrary Longitudinal Polarization Vortices by Pupil Function Manipulation

2020 ◽  
pp. 2000087
Author(s):  
Xin Liu ◽  
Yifan Peng ◽  
Shijie Tu ◽  
Jun Guan ◽  
Cuifang Kuang ◽  
...  
Keyword(s):  
Longitudinal Polarization ◽  
Pupil Function

scholarly journals Optical Aberration Calibration and Correction of Photographic System Based on Wavefront Coding

Sensors ◽  
2021 ◽  
Vol 21 (12) ◽  
pp. 4011
Author(s):  
Chuanwei Yao ◽  
Yibing Shen
Keyword(s):  
Imaging System ◽  
Optical Design ◽  
Computational Imaging ◽  
Large Field ◽  
Wavefront Aberration ◽  
Imaging Method ◽  
Image Deconvolution ◽  
Pupil Function ◽  
Wavefront Coding ◽  
Blurred Images

The image deconvolution technique can recover potential sharp images from blurred images affected by aberrations. Obtaining the point spread function (PSF) of the imaging system accurately is a prerequisite for robust deconvolution. In this paper, a computational imaging method based on wavefront coding is proposed to reconstruct the wavefront aberration of a photographic system. Firstly, a group of images affected by local aberration is obtained by applying wavefront coding on the optical system’s spectral plane. Then, the PSF is recovered accurately by pupil function synthesis, and finally, the aberration-affected images are recovered by image deconvolution. After aberration correction, the image’s coefficient of variation and mean relative deviation are improved by 60% and 30%, respectively, and the image can reach the limit of resolution of the sensor, as proved by the resolution test board. Meanwhile, the method’s robust anti-noise capability is confirmed through simulation experiments. Through the conversion of the complexity of optical design to a post-processing algorithm, this method offers an economical and efficient strategy for obtaining high-resolution and high-quality images using a simple large-field lens.

scholarly journals QCD and QED corrections to the longitudinal polarization asymmetry

1990 ◽  
Vol 45 (3) ◽  
pp. 528-528 ◽  
Author(s):  
S. Jadach ◽  
J. H. K�hn ◽  
R. G. Stuart ◽  
Z. Was
Keyword(s):  
Longitudinal Polarization ◽  
Polarization Asymmetry

scholarly journals STRESSING ISSUE OF A PIEZOCERAMIC CANTILEVER WITH LONGITUDINAL POLARISATION AND ELECTRODE COATINGS

2020 ◽  
Vol 19 (2) ◽  
pp. 113
Author(s):  
Igor Jovanović ◽  
Ljubiša Perić ◽  
Uglješa Jovanović ◽  
Dragan Mančić
Keyword(s):  
General Solution ◽  
Free Vibration ◽  
Electric Potential ◽  
Software Package ◽  
Longitudinal Polarization ◽  
Main Subject ◽  
Piezoceramic Material ◽  
Coupled Equations ◽  
Specific Strain ◽  
Simulation Results

The main subject of this study is the investigation of the free vibration of a rectangular prismatic piezoceramic cantilever with longitudinal polarization and electrode coatings. Based on the general solution of coupled equations for piezoceramic material, applying the equations of electro-elasticity and satisfying electrical and mechanical conditions for the stress of a cantilever made from PZT4 piezoceramic material, componential displacements, electric potential, specific strain, electric field, and piezoelectric displacement, are determined and numerically obtained with Matlab software package. Based on the obtained equations and simulation results, it is possible to optimize the dimensions of the cantilever and determine the type of piezoceramic.

scholarly journals Embedded pupil function recovery for Fourier ptychographic microscopy: erratum

2015 ◽  
Vol 23 (26) ◽  
pp. 33027 ◽  
Author(s):  
Xiaoze Ou ◽  
Guoan Zheng ◽  
Changhuei Yang
Keyword(s):  
Pupil Function ◽  
Function Recovery

Analysis and Design of Bessel Beam Launchers: Longitudinal Polarization

2016 ◽  
Vol 64 (6) ◽  
pp. 2311-2318 ◽  
Author(s):  
Santi C. Pavone ◽  
Mauro Ettorre ◽  
Matteo Albani
Keyword(s):  
Bessel Beam ◽  
Longitudinal Polarization ◽  
Analysis And Design

scholarly journals Confocal surface plasmon microscopy with pupil function engineering

2012 ◽  
Vol 20 (7) ◽  
pp. 7388 ◽  
Author(s):  
Bei Zhang ◽  
Suejit Pechprasarn ◽  
Jing Zhang ◽  
Michael G. Somekh
Keyword(s):  
Surface Plasmon ◽  
Pupil Function ◽  
Surface Plasmon Microscopy

scholarly journals Longitudinal polarization in KL→μ+μ− in MSSM with large tanβ

2000 ◽  
Vol 482 (4) ◽  
pp. 383-387 ◽  
Author(s):  
S. Rai Choudhury ◽  
Naveen Gaur ◽  
Abhinav Gupta
Keyword(s):  
Longitudinal Polarization

Influence of pupil function in pseudophakia

2019 ◽  
Author(s):  
Elsa S. Fonseca ◽  
Paulo T. Fiadeiro ◽  
Renato Gomes ◽  
Angel S. Trancon ◽  
António Baptista ◽  
...  
Keyword(s):  
Pupil Function

scholarly journals Influence of Neutral Currents on Electron and Gamma Polarizations in the Processe+N→e′+N+γ

2014 ◽  
Vol 2014 ◽  
pp. 1-8
Author(s):  
N. V. Samsonenko ◽  
Adamou Ousmane Manga ◽  
Almoustapha Aboubacar ◽  
Aboubacar Moussa
Keyword(s):  
Differential Cross Section ◽  
Inelastic Scattering ◽  
Cross Section ◽  
Differential Cross ◽  
Longitudinal Polarization ◽  
Neutral Currents ◽  
Photon Polarization ◽  
Weak Neutral Currents ◽  
Yield Information ◽  
Electron And Photon

The differential cross section of electron inelastic scattering by nuclei followed byγradiation is calculated using the multipole decomposition of the hadronic currents and by taking into account the longitudinal polarization of the initial electron and the circular polarization of theγradiation. We performed the analysis of the angular and energy dependence of the degree of electron and photon polarization which can yield information on values of weak neutral currents parameters.

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