https://scholars.lib.ntu.edu.tw/handle/123456789/621108
標題: | Ultrafast active control of UV light with plasmonic resonance on aluminum nanostripes | 作者: | Wang K. Li R. Hsiao H.-H. Chen L. Zhang H. Chen J. HUI-HSIN HSIAO |
公開日期: | 2018 | 卷: | 112 | 期: | 19 | 來源出版物: | Applied Physics Letters | 摘要: | Ultrafast active control of UV light with aluminum may become an efficient way for high-speed active UV devices. However, the nonlinear optical response of aluminum in the UV region is extremely small, which impedes the realization of the promising modulation depth on ultrafast control. Here, by using the surface plasmon resonance effect, we have achieved a 55-times enhancement in the modulation depth, as well as a short switching time of several picoseconds. Further investigation showed that such an enhancement mainly resulted from a two-order-of-magnitude boost in the response of the signal light to the lattice thermal variation at the plasmonic resonance condition. This improvement in the probing sensitivity could serve as an effective approach to resolve the dynamics of lattice vibrations in metals. © 2018 Author(s). |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85047014826&doi=10.1063%2f1.5027432&partnerID=40&md5=2be3802784d552908d707e3752d2e0ed https://scholars.lib.ntu.edu.tw/handle/123456789/621108 |
DOI: | 10.1063/1.5027432 | SDG/關鍵字: | Aluminum; Modulation; Nonlinear optics; Plasmonics; Plasmons; Surface plasmon resonance; Vibrations (mechanical); Active control; Effective approaches; Modulation depth; Nonlinear optical response; Plasmonic resonances; Surface plasmon resonance effects; Thermal variation; Ultrafast control; Lattice vibrations |
顯示於: | 工程科學及海洋工程學系 |
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