NDLI: Iridescence and its applications in thin-film conformal uniformity

Content Provider	IEEE Xplore Digital Library
Author	Smith, K.L. Alisafaee, H. Chaofan Wang Sass, R. Tsinghua Her
Copyright Year	2014
Description	Author affiliation: Dept. of Phys. & Opt. Sci., Univ. of North Carolina Charlotte, Charlotte, NC, USA (Smith, K.L.; Alisafaee, H.; Chaofan Wang; Tsinghua Her) \|\| Dept. of Electr. & Comput. Eng., Univ. of North Carolina Charlotte, Charlotte, NC, USA (Sass, R.)
Abstract	Iridescence is structural color, as opposed to pigment, in which the color is a result of constructive or destructive interference of light traveling through periodic structures, where the thickness of each layer plays a critical role in the color observed. Bragg fibers are man-made cylindrical structures with periodic layer coatings, modeled after the atomic lattice structure found in naturally occurring crystals. Bragg layers with even a slight deviation of micrometers in its thickness can result in a non-uniform color, which is the basis of our study. A non-invasive approach was taken to best approximate the dominant wavelength of the reflected hues through the use of microscopic imaging. The RGB values present in the images were extracted, and transformed into new coordinates using matrix operations, from which we were able to estimate the dominant wavelengths present in the Bragg fiber.
Starting Page	1
Ending Page	4
File Size	1595915
Page Count	4
File Format	PDF
ISBN	9781479965854
ISSN	1558058X
DOI	10.1109/SECON.2014.6950680
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-03-13
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image color analysis Scanning electron microscopy Interference Equations Educational institutions Periodic structures
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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