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  1. No Access

    Article

    Anomalous upconversion amplification induced by surface reconstruction in lanthanide sublattices

    Upconversion nanocrystals have been extensively investigated for optical imaging and biomedical applications1,2. However, their photoluminescence is strongly attenuated by surface quenching as the nanocrystal siz...

    Hui Xu, Sanyang Han, Renren Deng, Qianqian Su, Ying Wei, Yongan Tang… in Nature Photonics (2021)

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    Article

    Relativistic single-cycle tunable infrared pulses generated from a tailored plasma density structure

    The availability of intense, ultrashort coherent radiation sources in the infrared region of the spectrum is enabling the generation of attosecond X-ray pulses via high-harmonic generation, pump–probe experime...

    Zan Nie, Chih-Hao Pai, Jianfei Hua, Chaojie Zhang, Yipeng Wu, Yang Wan… in Nature Photonics (2018)