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您的检索式：作者名="Longhai Tang"
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| 1 | Broadband and tunable terahertz absorption via photogenerated carriers in undoped silicon显示文摘Terahertz absorbers based on doped silicon have achieved broadband and high-efficiency absorption due to their high concentration of carriers.However,their tunable performance is obviously insufficient.Here,we propose a new scheme for active terahertz absorption based on undoped silicon with a metamaterial antireflection layer,which realizes both strong absorption and ultrahigh modulation depth.Benefiting from the weak absorption and high transmission of undoped silicon for 1064-nm continuous wave,uniformly distributed carriers across the entire thickness of the absorber are excited,and efficient free carrier absorption of the terahertz wave is obtained.We use only a 500-μm thick absorber and achieve absorption greater than 90%in the range of 0.58 to 1.92 THz,with a peak value of 99%.More important,the absorber can be switched between two working states of nonabsorption and high-efficiency absorption by changing the pump power,which means the modulation depth reaches 100%.This simple and high-performance implementation scheme provides a new idea for the design of terahertz tunable absorbers. | Jie Li Jitao Li Chenglong Zheng Longhai Liu Zhen Yue Hang Xu Xuanruo Hao Fuyu Li Tingting Tang Yating Zhang Jianquan Yao | 2022 | Science China(Physics,Mechanics & Astronomy)2022，65，1： | 1 |
| 2 | A CRISPR activation screen identifies genes that enhance SARS-CoV-2 infection显示文摘Dear Editor,Identifying the host factors that are utilized for virus infection and mapping their cell-type expression profile can help to understand the viral tissue/organ tropism and pathogenesis.Much effort has been devoted to the identification of SARS-CoV-2 infection-dependent host factors.CRISPR-based activation(Konermann et al.,2015). | Fei Feng Yunkai Zhu Yanlong Ma Yuyan Wang Yin Yu Xinran Sun Yuanlin Song Zhugui Shao Xinxin Huang Ying Liao Jingyun Ma Yuping He Mingyuan Wang Longhai Tang Yaowei Huang Jincun Zhao Qiang Ding Youhua Xie Qiliang Cai Hui Xiao Chun Li Zhenghong Yuan Rong Zhang | 2023 | Protein & Cell2023，14，1： | 0 |
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