Response of the monolayer molybdenum disulfide to external circularly and/or elliptically polarized electromagnetic fields

• Published in: Applied physics. A, Materials science & processing Vol. 124; no. 5; pp. 1 - 5
• Main Authors: Zhang, Xincheng, Liao, Wenhu, Bao, Hairui, Zuo, Min
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.05.2018; Springer Nature B.V
• Subjects: Absorption spectra; Applied physics; Characterization and Evaluation of Materials; Condensed Matter Physics; Dielectrics; Electromagnetic fields; Electromagnetism; Machines; Manufacturing; Materials science; Molybdenum; Molybdenum disulfide; Monolayers; Nanotechnology; Optical and Electronic Materials; Optoelectronic devices; Physics; Physics and Astronomy; Polarized light; Processes; Reflectance; Space telescopes; Surfaces and Interfaces; Thin Films
• ISSN: 0947-8396; 1432-0630
• DOI: 10.1007/s00339-018-1776-1

Based on the intersubband transition theorem of the semiconductors, we have theoretically investigated the optical dielectric function, absorption spectrum, and reflectivity of the monolayer molybdenum disulfide ( MoS 2 ) under the irradiation of a circularly and/or elliptically polarized light. The resonance frequency of the absorption spectrum and reflectivity has been observed to be same with that of the real and imaginary part of the dielectric functions, while the amplitude of the resonance peaks becomes higher with the increase of the amplitude ratio of the polarized light. The monolayer MoS 2 should be more sensitive to the linearly polarized electromagnetic fields, especially to the transversally polarized light. The obtained results may be useful in the design of the spintronic and optoelectronic devices based on MoS 2 .