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首页> 外文期刊>Physical review >Sensing an electromagnetic field with photon-assisted Fano resonance in a two-branch carbon nanotube junction
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Sensing an electromagnetic field with photon-assisted Fano resonance in a two-branch carbon nanotube junction

机译：在两分支碳纳米管结中通过光子辅助Fano共振感应电磁场

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摘要

A photon-assisted Fano resonance in a two-branch single wall carbon nanotube junction (NJ) is considered. The NJ branches are misaligned by a finite angle υ and represent two coupled one-dimensional quantum dots where quantized electron states are formed. The inter-dot tunneling coupling causes a Fano resonance. When an external electromagnetic field (EF) is applied, the interdot tunneling becomes photon assisted. The resulting dc conductivity of each NJ branch shows series of satellite singularities arising in addition to the steady state Fano peaks. Magnitudes and positions of the singularities depend on the frequency, amplitude, and polarization of the EF, which may be used for sensing purposes.
机译：考虑了两分支单壁碳纳米管结（NJ）中的光子辅助Fano共振。 NJ个分支以有限的角度υ错位，代表两个耦合的一维量子点，其中形成了量化的电子态。点间隧道耦合导致Fano共振。当施加外部电磁场（EF）时，点间隧穿将成为光子辅助。每个NJ分支的最终dc电导率显示出一系列的卫星奇异点，除了稳态Fano峰。奇异点的大小和位置取决于EF的频率，幅度和极化，可将其用于感测目的。

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