Results 11 to 20 of about 1,439,788 (292)

Structural colors of pearls [PDF]

open access: yesScientific Reports, 2021
AbstractThe luster is the most important characteristic of pearls, whose colors depend on periodic structures of aragonite crystal layers and conchiolin sheets. We here propose an optical model for analyzing the structural colors of pearls that includes the transmission, reflection, and scattering of light in pearls.
Ryotaro Ozaki   +4 more
openaire   +3 more sources

Structure Learning of H-Colorings [PDF]

open access: yesACM Transactions on Algorithms, 2020
We study the following structure learning problem forH-colorings. For a fixed (and known) constraint graphHwithqcolors, given access to uniformly randomH-colorings of an unknown graphG=(V,E), how many samples are required to learn the edges of G? We give a characterization of the constraint graphs Hfor which the problem is identifiable for every Gand ...
Antonio Blanca   +3 more
openaire   +3 more sources

Structural Parameterizations of Clique Coloring [PDF]

open access: yesAlgorithmica, 2021
AbstractA clique coloring of a graph is an assignment of colors to its vertices such that no maximal clique is monochromatic. We initiate the study of structural parameterizations of the Clique Coloring problem which asks whether a given graph has a clique coloring with q colors. For fixed $$q \ge 2$$ q
Lars Jaffke   +2 more
openaire   +6 more sources

Pixelating Responsive Structural Color via a Bioinspired Morphable Concavity Array (MoCA) Composed of 2D Photonic Crystal Elastomer Actuators

open access: yesAdvanced Science, 2023
Stimuli‐responsive structural coloration allows the color change of soft substrates in response to environmental stimuli such as heat, humidity, and solvents.
Yi Pan   +5 more
doaj   +1 more source

Prediction of the Structural Color of Liquid Crystals via Machine Learning

open access: yesLiquids, 2023
Materials that generate structural color may be promising alternatives to dyes and pigments due to their relative long-term stability and environmentally benign properties.
Andrew T. Nguyen   +12 more
doaj   +1 more source

Spectroscopic Ellipsometry and Optical Modelling of Structurally Colored Opaline Thin-Films

open access: yesApplied Sciences, 2022
The method of spectroscopic ellipsometry is applied to complex periodic nanomaterials, consisting of shear-ordered polymeric nanosphere composites, with intense resonant structural color.
Chris E. Finlayson   +2 more
doaj   +1 more source

Interactive structural color displays of nano-architectonic 1-dimensional block copolymer photonic crystals

open access: yesScience and Technology of Advanced Materials, 2023
For changing environmental circumstances, interactive structural color (SC) observation is a promising strategy to store and express external information.
Tae Hyun Park   +3 more
doaj   +1 more source

Femtosecond laser-induced periodic structures: mechanisms, techniques, and applications

open access: yesOpto-Electronic Science, 2022
Over the past two decades, femtosecond laser-induced periodic structures (femtosecond-LIPSs) have become ubiquitous in a variety of materials, including metals, semiconductors, dielectrics, and polymers.
Yuchan Zhang   +10 more
doaj   +1 more source

Structural Color 3D Printing By Shrinking Photonic Crystals [PDF]

open access: yes, 2019
The rings, spots and stripes found on some butterflies, Pachyrhynchus weevils, and many chameleons are notable examples of natural organisms employing photonic crystals to produce colorful patterns.
Dong, Zhaogang   +11 more
core   +3 more sources

Home - About - Disclaimer - Privacy