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| Presentation | 2020-01-30 10:35 A numerical study of structural coloration by a slanted grating Hideaki Wakabayashi (Okayama Pref. Univ.), Masamitsu Asai (Kindai Univ.), Jiro Yamakita (Okayama Pref. Univ.)  PN2019-46 EMT2019-86 MWP2019-60 Link to ES Tech. Rep. Archives: EMT2019-86 MWP2019-60 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The stripe of a tropical freshwater fish ``neon tetra'' consists of many iridophores, in which slanted reflecting platelets are periodically arranged. The neon tetra has structural coloration and changes the color of a stripe by changing the slanted angle and the interval of the platelets in response to the surrounding conditions. We consider a slanted subwavelength grating modeled on the iridophore of a neon tetra. This paper reformulates the matrix eigenvalues method for an analytical method of the three-dimensional scattering problem of a dielectric grating with a slanted grating vector. Calculating the reflection spectrum, the tristimulus values of standard RGB (sRGB) and the xy chromaticity coordinates for slanted gratings, we numerically show that the color changes depending on the slanted angles. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | structural coloration / slanted dielectric grating / grating vector / matrix eigenvalues method, / sRGB / xy chromaticity coordinates / / | |
| Reference Info. | IEICE Tech. Rep., vol. 119, no. 403, EMT2019-86, pp. 67-72, Jan. 2020. | |
| Paper # | EMT2019-86 | |
| Date of Issue | 2020-01-23 (PN, EMT, MWP) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | PN2019-46 EMT2019-86 MWP2019-60 Link to ES Tech. Rep. Archives: EMT2019-86 MWP2019-60 |
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| Conference Information | |
| Committee | MWP PN EMT PEM IEE-EMT |
| Conference Date | 2020-01-30 - 2020-01-31 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Dosisha Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | EMT |
| Conference Code | 2020-01-MWP-PN-EMT-PEM-EMT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A numerical study of structural coloration by a slanted grating |
| Sub Title (in English) | |
| Keyword(1) | structural coloration |
| Keyword(2) | slanted dielectric grating |
| Keyword(3) | grating vector |
| Keyword(4) | matrix eigenvalues method, |
| Keyword(5) | sRGB |
| Keyword(6) | xy chromaticity coordinates |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Hideaki Wakabayashi |
| 1st Author's Affiliation | Okayama Prefectural University (Okayama Pref. Univ.) |
| 2nd Author's Name | Masamitsu Asai |
| 2nd Author's Affiliation | Kindai University (Kindai Univ.) |
| 3rd Author's Name | Jiro Yamakita |
| 3rd Author's Affiliation | Okayama Prefectural University (Okayama Pref. Univ.) |
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| Speaker | Author-1 |
| Date Time | 2020-01-30 10:35:00 |
| Presentation Time | 25 minutes |
| Registration for | EMT |
| Paper # | PN2019-46, EMT2019-86, MWP2019-60 |
| Volume (vol) | vol.119 |
| Number (no) | no.402(PN), no.403(EMT), no.404(MWP) |
| Page | pp.67-72 |
| #Pages | 6 |
| Date of Issue | 2020-01-23 (PN, EMT, MWP) |
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