Analysis on the focal spot characteristics of random Gauss phase plate
Sign Up to like & getrecommendations! Published in 2017 at "Optik"
DOI: 10.1016/j.ijleo.2016.10.084
Abstract: Abstract Gaussian phase plate (GPP) is a special kind of continuous phase plate, which surface figure can be described as a Gaussian random process. In this paper we propose an analysis model to discuss the… read more here.
Keywords: analysis; focal spot; phase plate;
Method for exploring the topological charge and shape of an optical vortex generated by a spiral phase plate
Sign Up to like & getrecommendations! Published in 2021 at "Optics and Laser Technology"
DOI: 10.1016/j.optlastec.2021.107098
Abstract: Abstract A spiral phase plate (SPP) represents one of the most efficient and cost-effective optical devices used for vortex beam generation. In this work, we studied, both experimentally and theoretically, the effect of illumination of… read more here.
Keywords: phase; phase plate; topological charge; spiral phase ... See more keywords
Challenges and opportunities in cryo-EM with phase plate.
Sign Up to like & getrecommendations! Published in 2019 at "Current opinion in structural biology"
DOI: 10.1016/j.sbi.2019.06.013
Abstract: Not long after the invention of transmission electron microscope (TEM), phase plate was proposed as a novel electron-optical apparatus at the back-focal plane of the objective lens to modulate the magnified specimen images with enhanced… read more here.
Keywords: plate; challenges opportunities; phase plate; opportunities cryo ... See more keywords
Demonstration of a 2 × 2 programmable phase plate for electrons.
Sign Up to like & getrecommendations! Published in 2018 at "Ultramicroscopy"
DOI: 10.1016/j.ultramic.2018.03.017
Abstract: First results on the experimental realisation of a 2 × 2 programmable phase plate for electrons are presented. The design consists of an array of electrostatic elements that influence the phase of electron waves passing through 4… read more here.
Keywords: phase; programmable phase; plate electrons; phase plate ... See more keywords
Hole-Free Phase Plate Imaging of a Phase Grating
Sign Up to like & getrecommendations! Published in 2018 at "Microscopy and Microanalysis"
DOI: 10.1017/s1431927618004968
Abstract: Hole free phase plate (HFPP) imaging provides a convenient way to enhance phase contrast in a TEM [1]. HFPP imaging applications range from biology to magnetic materials, but quantitative image interpretation has not been possible… read more here.
Keywords: hole free; free phase; phase; phase plate ... See more keywords
Single Particle Imaging with the Volta Phase Plate
Sign Up to like & getrecommendations! Published in 2019 at "Microscopy and Microanalysis"
DOI: 10.1017/s1431927619000011
Abstract: The Volta phase plate (VPP) is a remarkably simple device comprising a thin (~10 nm) amorphous carbon film positioned at the back focal plane of the objective lens (Fig. 1) [1]. The film is continuously… read more here.
Keywords: volta phase; phase shift; phase plate; film ... See more keywords
Dynamic multilevel spiral phase plate generator
Sign Up to like & getrecommendations! Published in 2018 at "Scientific Reports"
DOI: 10.1038/s41598-018-34041-2
Abstract: The design and characterisation of a reconfigurable multi-level spiral phase plate is shown. The device is based on a pie-shape liquid-crystal structure with 24 slices driven by custom electronics that allow independent excitation control of… read more here.
Keywords: spiral phase; dynamic multilevel; multilevel spiral; phase plate ... See more keywords
Generation of Perfect Vortex Beams With Polymer-Based Phase Plate
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Photonics Technology Letters"
DOI: 10.1109/lpt.2020.2985745
Abstract: Perfect vortex beam has the characteristics of optical orbital angular momentum and is widely studied because of its advantages of a uniform ring profile and fixed radius. However, the current method of generating perfect vortex… read more here.
Keywords: vortex beams; perfect vortex; phase plate; phase ... See more keywords
Study on optical hierarchical sorting of particles based on the Fraunhofer diffraction field of spiral phase plate array
Sign Up to like & getrecommendations! Published in 2020 at "Optical Engineering"
DOI: 10.1117/1.oe.59.11.115104
Abstract: Abstract. Optical hierarchical sorting has attracted significant attention in recent years. The existing approaches use either complex numerical calculation or computer-aided experimental tools for optical hierarchical sorting. We proposed a method to perform hierarchical sorting,… read more here.
Keywords: phase plate; optical hierarchical; hierarchical sorting; spiral phase ... See more keywords
Fabrication of a large-aperture continuous phase plate in two modes using atmospheric pressure plasma processing
Sign Up to like & getrecommendations! Published in 2018 at "Chinese Optics Letters"
DOI: 10.3788/col201816.102201
Abstract: In order to fabricate a large-aperture continuous phase plate (CPP) using atmospheric pressure plasma processing (APPP) with high efficiency and precision, the position dwell mode and velocity mode were proposed and the iterative calculation method… read more here.
Keywords: aperture continuous; using atmospheric; large aperture; atmospheric pressure ... See more keywords