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Frequency comb generation at terahertz frequencies by coherent phonon excitation in silicon
http://hdl.handle.net/2241/118076
http://hdl.handle.net/2241/118076f76fc874-0230-4645-aae1-d875fd244fef
名前 / ファイル | ライセンス | アクション |
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NP_6-4.pdf (2.4 MB)
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Item type | Journal Article(1) | |||||
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公開日 | 2012-12-20 | |||||
タイトル | ||||||
タイトル | Frequency comb generation at terahertz frequencies by coherent phonon excitation in silicon | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
Hase, Muneaki
× Hase, Muneaki× Katsuragawa, Masayuki× Constantinescu, Anca Monia× Petek, Hrvoje |
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著者別名 |
長谷, 宗明
× 長谷, 宗明 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | High-order nonlinear light–matter interactions in gases enable the generation of X-ray and attosecond light pulses, metrology and spectroscopy1. Optical nonlinearities in solid-state materials are particularly interesting for combining optical and electronic functions for high-bandwidth information processing2. Third-order nonlinear optical processes in silicon have been used to process optical signals with bandwidths greater than 1 GHz (ref. 2). However, fundamental physical processes for a silicon-based optical modulator in the terahertz bandwidth range have not yet been explored. Here, we demonstrate ultrafast phononic modulation of the optical index of silicon by irradiation with intense few-cycle femtosecond pulses. The anisotropic reflectivity modulation by the resonant Raman susceptibility at the fundamental frequency of the longitudinal optical phonon of silicon (15.6 THz) generates a frequency comb up to seventh order. All-optical >100 THz frequency comb generation is realized by harnessing the coherent atomic motion of the silicon crystalline lattice at its highest mechanical frequency. | |||||
書誌情報 |
Nature photonics 巻 6, 号 4, p. 243-247, 発行日 2012-04 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1749-4893 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA12300925 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1038/nphoton.2012.35 | |||||
権利 | ||||||
権利情報 | © 2012 Macmillan Publishers Limited | |||||
著者版フラグ | ||||||
値 | author | |||||
出版者 | ||||||
出版者 | Nature Publishing | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2241/118076 | |||||
識別子タイプ | HDL |