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Ngày xuất bản: 10/10/2021
Ngày xuất bản Online: 10/10/2021
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DOI: https://doi.org/10.52714/dthu.10.5.2021.892
Số xuất bản
Tập 10 Số 5 (2021): Chuyên san Khoa học Tự nhiên (Tiếng Anh)
Chuyên mục
Khoa học Tự nhiên (Tiếng Anh)
Trích dẫn bài báo
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. Tạp chí Khoa học Đại học Đồng Tháp, 10(5), 25-30. https://doi.org/10.52714/dthu.10.5.2021.892

Linear and nonlinear refractive index changes in monolayer MoSe2

Tran Ngoc Bich1, Nguyen Ngoc Hieu2,3, Ta Thi Tho4, Le Thi Ngoc Tu5, Huynh Vinh Phuc5,
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

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Tóm tắt

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.

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

Từ khóa

Magnetic field, monolayer MoSe2, refractive index changes

Tài liệu tham khảo

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