著者

Jun SHIBAYAMA Takuma KURODA Junji YAMAUCHI Hisamatsu NAKANO

出版者

The Institute of Electronics, Information and Communication Engineers

雑誌

IEICE TRANSACTIONS on Electronics (ISSN:09168516)

巻号頁・発行日

vol.E105-C, no.4, pp.159-162, 2022-04-01

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A periodic array of InSb spheres on a substrate is numerically analyzed at terahertz frequencies. The incident field is shown to be coupled to the substrate due to the guided-mode resonance. The effect of the background refractive index on the transmission characteristics is investigated for sensor applications.

著者

Takanori Suzuki Takuma Kuroda Hitomi Tamaoki Sho Higasa Ryo Katoono Kenshu Fujiwara Takanori Fukushima Hidetoshi Yamada

出版者

(社)日本化学会

雑誌

Chemistry Letters (ISSN:03667022)

巻号頁・発行日

vol.42, no.7, pp.706-708, 2013-07-05 (Released:2013-07-05)

参考文献数

29

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Upon oxidation of the title heterocycles with dimethylamino groups, elemental sulfur is extruded to form dicationic dyes, which regenerate the heterocycles by the reaction with Na2S. The electrolysis of the heterocycles induces a drastic change in UV–vis spectrum exhibiting several isosbestic points. The bay-region substituents enhance configurational stability, so the optically pure heterocycle can be obtained in terms of helicity of one-handedness, and its chromism is accompanied by a large chiroptical response as detected by CD spectroscopy.