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High-order harmonic generation from zigzag graphene nanoribbons [Early Posting]

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摘要

High-order harmonic generation originated from zigzag graphene nanoribbons (ZGNR) induced by intense laser pulses is investigated theoretically. During the interaction between the intense mid-infrared laser with the ZGNR, we find that localized edge states mainly contribute to the generation of the low-order harmonics, while cutoff harmonics result from the other confined states. Our result shows that the edge state effect of ZGNR with narrow width can enhance the conversion efficiency of low-order harmonics, rather than the higher harmonics extended to the cutoff region.

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Wu Jiaqi,Zheng Yinhui,Zeng Zhinan,Li Ruxin. High-order harmonic generation from zigzag graphene nanoribbons[J].Chinese Optics Letters,2020,18(10):10.