Femtosecond ultrafast dynamics study on the photoemission performance of reflection-mode GaAlAs photocathode
Sign Up to like & getrecommendations! Published in 2019 at "Materials Science in Semiconductor Processing"
DOI: 10.1016/j.mssp.2018.10.037
Abstract: Abstract The photoemission characteristic of reflection-mode GaAlAs photocathode has been investigated, while a convenient and nondestructive method for evaluating the photocathode performances will be introduced. In this paper, two same reflection-mode photocathode structures with different… read more here.
Keywords: gaalas photocathode; photoemission; femtosecond; reflection mode ... See more keywords
A simplified reflection-mode digital gradient sensing technique for measuring surface slopes, curvatures and topography
Sign Up to like & getrecommendations! Published in 2020 at "Optics and Lasers in Engineering"
DOI: 10.1016/j.optlaseng.2019.105843
Abstract: Abstract A simplified optical apparatus for reflection-mode Digital Gradient Sensing methodology (r-DGS) to perform full-field measurement of surface slopes is proposed. It eliminates the need for a beam splitter to record random speckles off a… read more here.
Keywords: topography; mode digital; digital gradient; gradient sensing ... See more keywords
Design and fabrication of 2 kHz nematic liquid crystal variable retarder with reflection mode
Sign Up to like & getrecommendations! Published in 2019 at "Liquid Crystals"
DOI: 10.1080/02678292.2019.1686778
Abstract: ABSTRACT This study proposes a simple method of designing a high-speed liquid crystal variable retarder (LCVR) with reflection mode. First, a series of simple formulas is provided for analysing the effects of tilt incidence and… read more here.
Keywords: design fabrication; variable retarder; liquid crystal; crystal variable ... See more keywords
Reflection-mode acousto-optic imaging using plane wave ultrasound pulses
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Biomedical Optics"
DOI: 10.1117/1.jbo.26.9.096001
Abstract: Abstract. Significance: Performance of an acousto-optic imaging system is limited by light fluence rate and acoustic pressure field distributions characteristics. In optically scattering media, the former determines the achievable contrast, whereas the latter the imaging… read more here.
Keywords: plane; optic imaging; plane wave; reflection mode ... See more keywords
Effect of lateral diffusion of photoelectrons in the reflection-mode varied-doping AlGaN photocathode on resolution.
Sign Up to like & getrecommendations! Published in 2021 at "Applied optics"
DOI: 10.1364/ao.430947
Abstract: To obtain a high resolution of the reflection-mode AlGaN photocathode by establishing the modulation transfer function (MTF) model of this photocathode, the influence of emission layer thickness Te, electron diffusion length Ld, recombination velocity at… read more here.
Keywords: resolution; algan photocathode; varied doping; lateral diffusion ... See more keywords
Resolution and penetration depth of reflection-mode time-domain near infrared optical tomography using a ToF SPAD camera.
Sign Up to like & getrecommendations! Published in 2022 at "Biomedical optics express"
DOI: 10.1364/boe.470985
Abstract: In a turbid medium such as biological tissue, near-infrared optical tomography (NIROT) can image the oxygenation, a highly relevant clinical parameter. To be an efficient diagnostic tool, NIROT has to have high spatial resolution and… read more here.
Keywords: time; reflection mode; near infrared; spad camera ... See more keywords