Diffractive optical element optimization under wide incident angle and waveband situations
Sign Up to like & getrecommendations! Published in 2020 at "Optics Communications"
DOI: 10.1016/j.optcom.2019.124762
Abstract: Abstract The single-layer diffractive optical elements (SLDOEs) exhibit various advantages with respect to the design, configuration, fabrication, and cost. However, they also rapidly decrease the diffraction efficiency in a wide working waveband and incident angle… read more here.
Keywords: waveband; incident angle; incident; diffraction efficiency ... See more keywords
Diffraction efficiency optimization of multilayer dielectric mirror-based gratings for 1030 nm femtosecond lasers
Sign Up to like & getrecommendations! Published in 2020 at "Optics and Laser Technology"
DOI: 10.1016/j.optlastec.2020.106071
Abstract: Abstract Diffraction gratings that do not reach >99% diffraction efficiency (DE) are a major source of losses in chirped pulse amplification systems in current ultrashort pulse lasers. Here, we suggest an optimization route for diffraction… read more here.
Keywords: diffraction efficiency; diffraction; dielectric mirror; optimization ... See more keywords
Design of soft x-ray laminar-type gratings coated with supermirror-type multilayer to enhance diffraction efficiency in a region of 2–4 keV
Sign Up to like & getrecommendations! Published in 2023 at "Review of Scientific Instruments"
DOI: 10.1063/5.0148908
Abstract: Soft x-ray diffraction gratings coated with a supermirror-type multilayer were designed to enhance diffraction efficiency in the energy range of 2–4 keV by means of numerical calculations. The optimized groove depth and incidence angle are 2.05 nm… read more here.
Keywords: multilayer; soft ray; type; diffraction ... See more keywords
Direct search method of double-layer diffractive optical elements
Sign Up to like & getrecommendations! Published in 2024 at "Optical Engineering"
DOI: 10.1117/1.oe.63.3.035102
Abstract: Abstract. Diffractive optical elements can greatly improve the performance of optical imaging systems by achieving wideband high diffraction efficiency with bilayer diffractive optical elements. The conventional design method for bilayer diffractive optical elements (DOEs) utilizes… read more here.
Keywords: diffraction efficiency; method; optical elements; diffractive optical ... See more keywords
Acousto-Optic Diffraction in Paratellurite by a Slow Acoustic Mode. Increase of Diffraction Efficiency of Divergent Light
Sign Up to like & getrecommendations! Published in 2018 at "Technical Physics"
DOI: 10.1134/s106378421806004x
Abstract: Peculiarities of anisotropic acousto-optic Bragg diffraction in paratellurite by a slow acoustic wave have been considered. The ranges of frequency-angular dependences have been found, in which effective diffraction occurs, and their practical relevance has been… read more here.
Keywords: diffraction paratellurite; acousto optic; paratellurite slow; slow acoustic ... See more keywords
Femtosecond laser fabrication of volume-phase gratings in CdSxSe1-x-doped borosilicate glass at a low repetition rate.
Sign Up to like & getrecommendations! Published in 2019 at "Applied optics"
DOI: 10.1364/ao.58.004220
Abstract: Volume-phase gratings (VPGs) were fabricated in CdSxSe1-x quantum-dot-doped borosilicate glass at a low repetition rate (800 nm, 140 fs, 1 kHz). The VPGs were designed based on rigorous coupled wave analysis simulations. Results indicate that the inscribed thickness… read more here.
Keywords: volume phase; diffraction efficiency; diffraction; phase gratings ... See more keywords
Optimal design method on diffractive optical elements with antireflection coatings.
Sign Up to like & getrecommendations! Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.011673
Abstract: The effect of antireflection coatings on diffraction efficiency of diffractive optical elements (DOEs) was studied and the mathematical model of diffraction efficiency affected by antireflection coatings for DOEs is presented. We found antireflection coatings can… read more here.
Keywords: diffractive optical; antireflection; antireflection coatings; diffraction efficiency ... See more keywords
Diffraction efficiency enhancement and optimization in full-color HOE using the inhibition characteristics of the photopolymer.
Sign Up to like & getrecommendations! Published in 2021 at "Optics express"
DOI: 10.1364/oe.413370
Abstract: A novel and effective simultaneous recording method, to the best of our knowledge, is proposed for improving the diffraction efficiency and uniformity of full-color holographic optical elements (HOE) using the Bayfol HX102 photopolymer. To improve… read more here.
Keywords: color; full color; color hoe; diffraction efficiency ... See more keywords
Enhanced diffraction efficiency with angular selectivity by inserting an optical interlayer into a diffractive waveguide for augmented reality displays.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.469126
Abstract: The overall efficiency and image uniformity are important criteria for augmented reality display. The conventional in-coupling grating design intending to improve only the first-order diffraction efficiency without considering the multiple interactions with diffracted light in… read more here.
Keywords: angular selectivity; interlayer; efficiency; diffraction efficiency ... See more keywords
Effect of sidewall roughness on the diffraction efficiency of EUV high aspect ratio freestanding transmission gratings.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.473602
Abstract: Manufacturing-induced sidewall roughness has a significant impact on the diffraction efficiency of extreme ultraviolet (EUV) gratings and masks, which could be evaluated by a Debye-Waller damping factor. The rough profile models of line structures are… read more here.
Keywords: high aspect; sidewall roughness; transmission; efficiency ... See more keywords
Selective amplification effect on the diffraction efficiency of a phase grating generated by femtosecond laser pulses.
Sign Up to like & getrecommendations! Published in 2024 at "Optics letters"
DOI: 10.1364/ol.528293
Abstract: A phase grating that selectively amplifies diffraction orders that are multiples of a determined integer is designed. For the proposed grating, multiples of the fourth order are enhanced. These results are supported by experiments. The… read more here.
Keywords: diffraction; diffraction efficiency; phase grating; femtosecond laser ... See more keywords