A spherical aberration-free microscopy system for live brain imaging.
Sign Up to like & getrecommendations! Published in 2018 at "Biochemical and biophysical research communications"
DOI: 10.1016/j.bbrc.2018.04.049
Abstract: The high-resolution in vivo imaging of mouse brain for quantitative analysis of fine structures, such as dendritic spines, requires objectives with high numerical apertures (NAs) and long working distances (WDs). However, this imaging approach is often… read more here.
Keywords: live brain; spherical aberration; system; microscopy ... See more keywords
Human eye cataract microstructure modeling and its effect on simulated retinal imaging
Sign Up to like & getrecommendations! Published in 2017 at "Optics Communications"
DOI: 10.1016/j.optcom.2016.10.025
Abstract: Abstract We designed a crystalline microstructure during cataract lesions and calculated the aberration value of the eye by using ray trace modeling to identify the corresponding spherical aberration, coma aberration, and trefoil aberration value under… read more here.
Keywords: aberration; spherical aberration; cataract; eye ... See more keywords
Experimental study on spherical aberration and beam quality factor of LD end-pumped laser
Sign Up to like & getrecommendations! Published in 2020 at "Optics Communications"
DOI: 10.1016/j.optcom.2020.125627
Abstract: Abstract A method for judging the locations of dynamic stable zones boundaries and mode separations is presented by spherical aberration “transient variation” Experiments on spherical aberration in dynamic stable zones of an end-pumped laser are… read more here.
Keywords: spherical aberration; beam quality; end pumped; aberration ... See more keywords
Laser multi-focus precision cutting of thick sapphire by spherical aberration rectification
Sign Up to like & getrecommendations! Published in 2020 at "Optics and Lasers in Engineering"
DOI: 10.1016/j.optlaseng.2019.105876
Abstract: Abstract Laser multi-focus separation technology is an effective way to cut thick, transparent and hard materials. In this paper, factors affecting the quality of multi-focus cutting sapphire were investigated. Optical simulations analysis was performed based… read more here.
Keywords: spherical aberration; multi focus; laser; sapphire ... See more keywords
Eye patches: Protein assembly of index-gradient squid lenses
Sign Up to like & getrecommendations! Published in 2017 at "Science"
DOI: 10.1126/science.aal2674
Abstract: Squid lenses beat spherical aberration When light rays pass through a curved lens, greater refraction at the edges can distort the resulting image. This problem can be overcome if the refractive index of the lens… read more here.
Keywords: spherical aberration; index; squid lenses; index gradient ... See more keywords
Impact of frequency-dependent spherical aberration in the focusing of ultrashort pulses.
Sign Up to like & getrecommendations! Published in 2020 at "Applied optics"
DOI: 10.1364/ao.394300
Abstract: In this paper, the temporal and spatial intensity pulse distributions are calculated around the focal region of an optical system using a combination of ray tracing and a wave propagation method. We analyze how to… read more here.
Keywords: frequency; intensity; spherical aberration; intensity distributions ... See more keywords
Analysis and design of a microlens array scanning system based on spherical aberration.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.468180
Abstract: The microlens array (MLA) scanning system is a relatively new solution for beam scanning. The excrescent light generated by overlapping divergent beams from adjacent microlenses increases with the scanning angle, and as a result, the… read more here.
Keywords: system; scanning system; design; spherical aberration ... See more keywords
Spherical aberration of an optical system and its influence on depth of focus.
Sign Up to like & getrecommendations! Published in 2017 at "Applied optics"
DOI: 10.1364/ao.56.005099
Abstract: This paper analyzes the influence of spherical aberration on the depth of focus of symmetrical optical systems for imaging of axial points. A calculation of a beam's caustics is discussed using ray equations in the… read more here.
Keywords: optical system; spherical aberration; depth focus; aberration ... See more keywords
Accommodation through simulated multifocal optics.
Sign Up to like & getrecommendations! Published in 2022 at "Biomedical optics express"
DOI: 10.1364/boe.473595
Abstract: We evaluated the interaction of multifocal patterns with eye's accommodation. Seven patterns were mapped on the spatial light modulator and the deformable mirror of an adaptive optics visual simulator, and projected onto the subjects' eyes,… read more here.
Keywords: optics; center; spherical aberration; center near ... See more keywords
Near-null interferometry using an aspheric null lens generating a broad range of variable spherical aberration for flexible test of aspheres.
Sign Up to like & getrecommendations! Published in 2018 at "Optics express"
DOI: 10.1364/oe.26.031172
Abstract: A null lens moving back and forth relative to a point source can generate variable spherical aberration for flexible test of aspheres. Different from the previous methods, variable spherical aberration null theory was developed by… read more here.
Keywords: test; variable spherical; spherical aberration; near null ... See more keywords
Analog holographic wavefront sensor for defocus and spherical aberration measurement recorded in a photopolymer.
Sign Up to like & getrecommendations! Published in 2023 at "Optics express"
DOI: 10.1364/oe.479357
Abstract: An analog holographic wavefront sensor (AHWFS), for measurement of low and high order (defocus and spherical aberration) aberration modes has been developed as volume phase holograms in a photopolymer recording medium. This is the first… read more here.
Keywords: defocus spherical; aberration; analog holographic; spherical aberration ... See more keywords