| Presentation | 2020-01-30 A numerical study of structural coloration by a slanted grating Hideaki Wakabayashi, Masamitsu Asai, Jiro Yamakita, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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) |
| Keyword(in English) | structural coloration / slanted dielectric grating / grating vector / matrix eigenvalues method, / sRGB / xy chromaticity coordinates |
| Paper # | PN2019-46,EMT2019-86,MWP2019-60 |
| Date of Issue | 2020-01-23 (PN, EMT, MWP) |
| Conference Information | |
| Committee | MWP / PN / EMT / IEE-EMT |
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| Conference Date | 2020/1/30(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Dosisha Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Naoto Yoshimoto(Chitose Inst. of Science and Tech.) / Takehiro Tsuritani(KDDI Research) / Koichi Hirayama(Kitami Inst. of Tech.) / Keiji Goto(National Defense Academy) |
| Vice Chair | Akihiko Hirata(Chiba Inst. of Tech.) / Haruki Ogoshi(Furukawa Electric) / Hideaki Furukawa(NICT) / Kohei Shiomoto(Tokyo City Univ.) / Hiroyuki Deguchi(Doshisha Univ.) |
| Secretary | Akihiko Hirata(Yazaki) / Haruki Ogoshi(NICT) / Hideaki Furukawa(NTT) / Kohei Shiomoto(Univ. of Electr-Comm.) / Hiroyuki Deguchi(Fukuoka Inst.of Tech.) / (Tokyo Metropolitan Univ.) |
| Assistant | Kensuke Ikeda(CRIEPI) / Li Yi(Osaka Univ.) / Takashi Yamada(NTT) / Keijiro Suzuki(AIST) / Takahiro Kodama(Yamanashi Univ) / Junichiro Sugisaka(Kitami Inst. of Tech.) / Tsuyoshi Matsuoka(Kyushu Sangyo Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Microwave and Millimeter-wave Photonics / Technical Committee on Photonic Network / Technical Committee on Electromagnetic Theory / Technical Meeting on Electromagnetic Theory |
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| Language | JPN |
| 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 |
| 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.) |
| Date | 2020-01-30 |
| Paper # | PN2019-46,EMT2019-86,MWP2019-60 |
| Volume (vol) | vol.119 |
| Number (no) | PN-402,EMT-403,MWP-404 |
| Page | pp.pp.67-72(PN), pp.67-72(EMT), pp.67-72(MWP), |
| #Pages | 6 |
| Date of Issue | 2020-01-23 (PN, EMT, MWP) |