https://doi.org/10.1140/epjb/e2020-10390-0
Regular Article
Theory for optical activity in monolayer black phosphorus under external magnetic field
1
Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, and School of Physics and Telecommunication Engineering, South China Normal University,
Guangzhou
510006, P.R. China
2
School of Optoelectronic Engineering, Guangdong Polytechnic Normal University,
Guangzhou
510665, P.R. China
a e-mail: yinchengping1979@163.com
Received:
1
August
2020
Received in final form:
30
August
2020
Accepted:
9
September
2020
Published online: 14 October 2020
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.
Key words: Mesoscopic and Nanoscale Systems
© EDP Sciences / Società Italiana di Fisica / Springer-Verlag GmbH Germany, part of Springer Nature, 2020