Phase masks for electron microscopy fabricated by thermal scanning probe lithography.
Sign Up to like & getrecommendations! Published in 2019 at "Micron"
DOI: 10.1016/j.micron.2019.102753
Abstract: Nano-structured phase masks offer intriguing possibilities in electron-beam shaping. The fabrication of such phase masks is typically achieved by focused (Ga+-)ion beam milling of thin membranes. To overcome the problem of Ga implantation in the… read more here.
Keywords: phase; scanning probe; phase masks; microscopy ... See more keywords
Interference-based multiple-image encryption using binary phase masks
Sign Up to like & getrecommendations! Published in 2018 at "Optics and Lasers in Engineering"
DOI: 10.1016/j.optlaseng.2018.01.012
Abstract: Abstract We propose a new scheme to encrypt multiple images simultaneously using two-dimensional binary phase masks. Each of the original greyscale images is first decomposed into two pure phase-only images, which corresponds to the reverse… read more here.
Keywords: phase; image; phase masks; binary phase ... See more keywords
Binary phase masks for easy system alignment and basic aberration sensing with spatial light modulators in STED microscopy
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/s41598-017-15967-5
Abstract: The use of binary phase patterns to improve the integration and optimization of spatial light modulators (SLM) in an imaging system, especially a confocal microscope, is proposed and demonstrated. The phase masks were designed to… read more here.
Keywords: phase; system; microscopy; phase masks ... See more keywords
Experimental validation of hybrid optical–digital imaging system for extended depth-of-field based on co-optimized binary phase masks
Sign Up to like & getrecommendations! Published in 2019 at "Optical Engineering"
DOI: 10.1117/1.oe.58.11.113107
Abstract: Abstract. We experimentally investigate the performance of co-optimized hybrid optical–digital imaging systems based on binary phase masks and digital deconvolution for extended depth-of-field (DoF) under narrow-band illumination hypothesis. These systems are numerically optimized by assuming… read more here.
Keywords: hybrid optical; extended depth; optical digital; binary phase ... See more keywords
Theoretical and experimental analysis of co-designed binary phase masks for enhancing the depth of field of panchromatic cameras
Sign Up to like & getrecommendations! Published in 2021 at "Optical Engineering"
DOI: 10.1117/1.oe.60.3.033101
Abstract: Abstract. We investigate the depth of field (DoF) enhancing capacity of binary annular phase masks embedded in panchromatic imaging systems. We first demonstrate with numerical simulations and real-world imaging experiments that phase masks optimized for… read more here.
Keywords: illumination; depth field; wide spectrum; phase masks ... See more keywords
Optimized pupil-plane phase masks for high-contrast imaging.
Sign Up to like & getrecommendations! Published in 2018 at "Applied optics"
DOI: 10.1364/ao.57.005688
Abstract: A differential evolution algorithm (DEA) is shown to improve the design of phase-only pupil plane masks for imaging in the presence of a high-intensity point source. Strehl and suppression ratio metrics for various phase basis… read more here.
Keywords: phase; phase masks; optimized pupil; pupil plane ... See more keywords
Complex phase masks for OH suppression filters in astronomy: part I: design.
Sign Up to like & getrecommendations! Published in 2020 at "Optics express"
DOI: 10.1364/oe.402989
Abstract: The design of a complex phase mask (CPM) for inscribing multi-notch fiber Bragg grating filters in optical fibers for OH suppression in astronomy is presented. We demonstrate the steps involved in the design of a… read more here.
Keywords: phase; design complex; astronomy; phase masks ... See more keywords
Transversal and axial modulation of axicon-generated Bessel beams using amplitude and phase masks for glass processing applications.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.447035
Abstract: The control of laser-induced microcracks in the volume of transparent materials is essential for scribing processes. In this paper, we investigate the effect of various amplitude and single-level phase masks on both transverse and axial… read more here.
Keywords: phase masks; bessel beams; axicon generated; generated bessel ... See more keywords
Diffractive neural networks with polynomial phase masks for laser beam shaping with quasi-continuous diffractive optical elements.
Sign Up to like & getrecommendations! Published in 2025 at "Optics express"
DOI: 10.1364/oe.555192
Abstract: We present a novel approach to designing continuous diffractive optical elements (DOEs) for laser beam shaping using diffractive neural networks (DNNs) with trainable polynomial phase masks. This method enables the creation of single phase masks… read more here.
Keywords: phase masks; continuous diffractive; beam shaping; phase ... See more keywords
Spectrally exclusive phase masks for wavefront coding.
Sign Up to like & getrecommendations! Published in 2021 at "Optics letters"
DOI: 10.1364/ol.408640
Abstract: The use of phase masks is necessary for wavefront coding, and these are often based on optical path differences. However, the optical dispersion constrains the resulting device to operate within a restricted spectral bandwidth. Here… read more here.
Keywords: masks wavefront; phase; phase masks; wavefront coding ... See more keywords