Graphene-silicon waveguides as saturable absorbers in mode-locked fiber lasers.
石墨烯,由單層碳原子緊密排列成蜂巢狀的晶體結構,擁有卓越的電學性能和光學性能。這些優異的性能包括:極高的電子遷移率,超寬的吸收光譜,栅電壓調控光躍遷性質,飽和吸收性質。石墨烯的獨特光學性質已經被用來製造多種高性能的光電器件,包括光電探測器, 飽和吸收器, 光調製器和四波混頻的介質。同時,石墨烯的製造工藝可以與現代半導體標準製造工藝相兼容, 加上它穩定的化學性質, 石墨烯非常有潛力在未來半導體工業發展中發揮重要作用。 === 單層石墨烯可以透過97.7% 垂直入射的光,吸收2.3% 左右,並且吸收的光頻非常寬。雖然對於單層碳原子結構,這個吸收率很大,但是在一些器件中,我們需要更高的光吸收率。爲了...
Other Authors: | Shi, Zerui. |
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Format: | Others |
Language: | English Chinese |
Published: |
2013
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Subjects: | |
Online Access: | http://library.cuhk.edu.hk/record=b5549288 http://repository.lib.cuhk.edu.hk/en/item/cuhk-328763 |
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