Stimulated terahertz emission from optically pumped graphene

S. B. Tombet, A. Satou, T. Otsuji, V. Ryzhii
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引用次数: 1

Abstract

We conduct time domain spectroscopy studies and shows that graphene sheet amplifies an incoming terahertz field. The graphene emission spectra dependency on laser pumping intensity shows a threshold like behavior, testifying the occurrence of the negative conductivity and the population inversion in the terahertz range, paving the way for a new class room temperature graphene based terahertz lasers.
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光泵石墨烯的受激太赫兹辐射
我们进行时域光谱研究,并表明石墨烯片放大了入射太赫兹场。石墨烯发射光谱对激光泵浦强度的依赖表现出类似阈值的行为,证明了在太赫兹范围内存在负电导率和居数反转,为新型室温石墨烯基太赫兹激光器铺平了道路。
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