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Số xuất bản: Tập 10 Số 5 (2021): Chuyên san Khoa học Tự nhiên (Tiếng Anh)
Chuyên mục: Khoa học Tự nhiên (Tiếng Anh)
DOI: 10.52714/dthu.10.5.2021.892
Ngày xuất bản: 10/10/2021
Ngày xuất bản Online: 10/10/2021
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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 (số cũ), 10(5), 25-30. https://doi.org/10.52714/dthu.10.5.2021.892

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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

Nội dung chính của bài viết

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.

Từ khóa

Magnetic field, monolayer MoSe2, refractive index changes

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Tài liệu tham khảo

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