Results 261 to 270 of about 2,070,111 (343)

Wrinkled Photonic Elastomers with Dynamic Structural Color Patterns for Multilevel Optical Anti-Counterfeiting. [PDF]

Gels
Jiang X, Yan P, Wu C, Ke J, Hou W, Huang J, Lian Z, Lü T, Bai L.   +8 more
europepmc   +1 more source

Broadband extreme ultraviolet zeroth order scatterometry for nanostructure metrology. [PDF]

Nat Commun
Corazza F, Kechaoglou E, Guery L, Nie Z, Phadke P, Lehmann CS, Bliem R, Kraus PM.   +7 more
europepmc   +1 more source

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Tunable Diffraction Gratings from Biosourced Lyotropic Liquid Crystals

Advanced Materials, 2020
Diffraction gratings are important for modern optical components, such as optical multiplexers and signal processors. Although liquid crystal (LC) gratings based on thermotropic LCs have been extensively explored, they often require expensive molecules ...
Mark J. MacLachlan, Carl A Michal, Francesco D'Acierno   +2 more
exaly   +2 more sources

Diffraction gratings

Mathematical and Computational Methods in Photonics and Phononics, 2018
Recent progress in the techniques of manufacture of spectroscopic diffraction gratings is described. Three main topics are discussed in detail: (i) the mechanical ruling of gratings, and the way in which the mechanical aspects of the ruling process ...
Roshan L. Aggarwal, Kambiz Alavi
semanticscholar   +4 more sources

Enhancement of Diffraction Efficiency Based on the Addition Principle of Coded Digital Gratings

Journal of Lightwave Technology, 2022
For the traditional subwavelength gratings, we can code different units to construct the coded metagratings. In this paper, we propose an innovative principle of adding coded gratings, which can be used to add or subtract two or more traditional coded ...
Xufeng Jing, Xiaoyan Tang, Ying Tian, Zhe Kong, Chen-Xia Li, Changyu Shen, Zhi Hong   +6 more
semanticscholar   +1 more source

Diffraction by a microrelief grating

Journal of the Optical Society of America A, 2001
A model is proposed that describes diffraction by a microrelief grating. A microrelief grating is a grating of large period with grooves containing a periodic microrelief with a period considerably smaller than the period of the grating. In the model the interaction of the incident wave with the fine structure is taken into account rigorously while ...
P, Rusek, H P, Urbach
openaire   +2 more sources

Diffraction Gratings and Applications

, 2018
A brief history of spectral analysis fundamental properties of gratings the types of diffraction gratings efficiency behaviour of plane reflection gratings transmission gratings icily gratings concave gratings surfacewaves and grating anomalies waveguide,
E. Loewen, E. Popov
semanticscholar   +1 more source

Elastic Phased Diffraction Gratings for Manipulation of Ultrasonic Guided Waves in Solids

Physical Review Applied, 2019
Lamb waves and surface acoustic waves (SAWs) are of great interest for frontier technologies, including structural health monitoring, energy harvesting, sensors, and acoustic tweezers.
Zhen-Hua Tian, Ling-Yu Yu
semanticscholar   +1 more source

A full-color near-eye augmented reality display using a tilted waveguide and diffraction gratings

Optics Communications, 2019
Full-color imaging is necessary for the wide applications of waveguide displays. To address this challenge, we propose a tilted-waveguide system with diffraction gratings.
Ze-Yang Liu, Cheng Pan, Ya-Jun Pang, Zhanhua Huang   +3 more
semanticscholar   +1 more source