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Date Published: 10/10/2021
Online Published: 10/10/2021
Abstract Views: 32
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DOI: https://doi.org/10.52714/dthu.10.5.2021.892
Issue
Vol. 10 No. 5 (2021): Natural Sciences Issue (English)
Section
Natural Sciences Issue
How to Cite
Tran, N. B., Nguyen, N. H., Ta, T. T., Le, T. N. T., & Huynh, V. P. (2021). Linear and nonlinear refractive index changes in monolayer MoSe2. Dong Thap University Journal of Science, 10(5), 25-30. https://doi.org/10.52714/dthu.10.5.2021.892

Linear and nonlinear refractive index changes in monolayer MoSe2

Ngoc Bich Tran1, Ngoc Hieu Nguyen2,3, Thi Tho Ta4, Thi Ngoc Tu Le5, Vinh Phuc Huynh5,
1 Physics Department, University of Education, Hue University, Vietnam
2 Institute of Research and Development, Duy Tan University, Vietnam
3 Faculty of Natural Sciences, Duy Tan University, Vietnam
4 Faculty of Mechanical Engineering, National University of Civil Engineering, Vietnam
5 Department of Natural Sciences Teacher Education, Dong Thap University, Vietnam

Main Article Content

Abstract

In this work, we study the linear, the third-order nonlinear, and the total refractive index changes (RICs) caused by both intra- and inter-band transitions in monolayer MoSe2 in the presence of a magnetic field by using the compact density matrix approach. The results show that RICs display the blue-shift behavior with the increase of the magnetic field. The Zeeman fields do not affect the peak positions but reduce slightly peak intensities. Besides, the strong spin-orbit coupling in monolayer MoSe2 causes a significant difference in the peak due to spinning up and down. The RICs due to intra-band transition display only one peak in the THz range, while the inter-band spectra show a series of peaks in the near-infrared optical range, making monolayer MoSe2 be a promising candidate for novel optoelectronic applications.

Article Details

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Keywords

Magnetic field, monolayer MoSe2, refractive index changes

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