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タイトル: | Photo-designed terahertz devices |
著者: | Okada, Takanori Tanaka, Koichiro https://orcid.org/0000-0002-2132-8318 (unconfirmed) |
著者名の別形: | 岡田, 隆典 田中, 耕一郎 |
キーワード: | Optical materials and structures Terahertz technology Ultrafast photonics Optical physics |
発行日: | 18-Oct-2011 |
出版者: | Nature Publishing Group |
引用: | Okada, T. & Tanaka, K. Photo-designed terahertz devices. Sci. Rep. 1, 121; DOI:10.1038/srep00121 (2011). |
誌名: | Scientific Reports |
巻: | 1 |
論文番号: | 121 |
抄録: | Technologies are being developed to manipulate electromagnetic waves using artificially structured materials such as photonic crystals and metamaterials, with the goal of creating primary optical devices. For example, artificial metallic periodic structures show potential for the construction of devices operating in the terahertz frequency regime. Here we demonstrate the fabrication of photodesigned terahertz devices that enable the real-time, wide-range frequency modulation of terahertz electromagnetic waves. These devices are comprised of a photo-induced, planar periodic-conductive structure formed by the irradiation of a silicon surface using a spatially modulated, femtosecond optical pulsed laser. We also show that the modulation frequency can be tuned by the structural periodicity, but is hardly affected by the excitation power of the optical pump pulse. We expect that our findings will pave the way for the construction of all-optical compact operating devices, such as optical integrated circuits, thereby eliminating the need for materials fabrication processes. |
記述: | 光でデザインするテラヘルツデバイス. 京都大学プレスリリース. 2011-10-18 |
著作権等: | This work is licensed under a Creative Commons Attribution-NonCommercial-ShareALike 3.0 Unported License. |
URI: | http://hdl.handle.net/2433/148011 |
DOI(出版社版): | 10.1038/srep00121 |
PubMed ID: | 22355638 |
関連リンク: | http://www.kyoto-u.ac.jp/ja/news_data/h/h1/news6/2011/111018_1.htm http://www.nature.com/srep/2011/111018/srep00121/pdf/srep00121.pdf |
出現コレクション: | 学術雑誌掲載論文等 |
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