We investigate the role of the black-phosphorus-based n-p (BP-np) junction modulated by linearly polarized light (LPL) in governing the quantum transport behaviors. Following the analysis of the band structures, we find that the LPL can adjust the gap between the conduction and valence bands by reducing the impact of momentum mismatch caused by the band gap. In addition, LPL can also eliminate the angle dependence of transmission. This means that for BP with a fixed band gap, the transmission-forbidden region can be reduced and the transmission probability can be increased by applying LPL modulation of the band gap to achieve all-angle perfect transmission, i.e., super-Klein tunneling (SKT). Our investigation also found that the SKT is robust to different incident energies, resulting in a larger conductance platform. These findings could be useful for the development and application of optical-like electronic devices.

中文翻译：

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线性偏振光调制的黑磷基 N-P 结中的超克莱因隧道效应

我们研究了线性偏振光 (LPL) 调制的黑磷基 np (BP-np) 结在控制量子传输行为中的作用。通过对能带结构的分析，我们发现LPL可以通过减少带隙引起的动量失配的影响来调节导带和价带之间的间隙。此外，LPL还可以消除传输的角度依赖性。这意味着对于带隙固定的BP，通过对带隙进行LPL调制，可以减少传输禁止区域，提高传输概率，实现全角度完美传输，即超克莱因隧道效应（SKT ）。我们的调查还发现，SKT 对不同的入射能量具有鲁棒性，从而产生更大的电导平台。这些发现可能有助于类光学电子设备的开发和应用。