Abstract

We derive an analytical model for calculating the optical activity in monolayer black phosphorus under an external magnetic field. By optimizing the parameters, the circular dichroism can be comparable to that in previously reported chiral metamaterials in a broad angle range. Besides, the optical activity including the circular dichroism, the circular conversion dichroism and the circular birefringence can be tuned almost linearly via changing the applied magnetic field magnitude. These results show that our proposed model would possess potential applications in polarization optics, stereochemistry, and molecular biology.

Graphical abstract

中文翻译：

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外磁场作用下单层黑磷的光学活性理论

摘要

我们导出了一个分析模型，用于计算外部磁场下单层黑磷中的光学活性。通过优化参数，圆二色性可以在广角范围内与先前报道的手性超材料相媲美。此外，包括圆二色性，圆转换二色性和圆双折射在内的光学活性可以通过改变施加的磁场大小而几乎线性地调节。这些结果表明我们提出的模型将在偏振光学，立体化学和分子生物学中具有潜在的应用。

图形概要