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Probing the Response of Two-Dimensional Crystals by Optical Spectroscopy

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Probing the Response of Two-Dimensional Crystals by Optical Spectroscopy/ by Yilei Li.
Author:	Li, Yilei.
Description:	XII, 69 p.online resource. :
Contained By:	Springer Nature eBook
Subject:	Lasers. -
Online resource:	https://doi.org/10.1007/978-3-319-25376-3
ISBN:	9783319253763

Probing the Response of Two-Dimensional Crystals by Optical Spectroscopy
Li, Yilei.

Probing the Response of Two-Dimensional Crystals by Optical Spectroscopy[electronic resource] /by Yilei Li. - 1st ed. 2016. - XII, 69 p.online resource. - Springer Theses, Recognizing Outstanding Ph.D. Research,2190-5053. - Springer Theses, Recognizing Outstanding Ph.D. Research,.

Introduction and Background -- Intrinsic Doping Dependence of Raman 2D Mode in Graphene: Signatures of Electron-Electron Interaction -- Coupling of Strongly Localized Graphene Plasmons to Molecular Vibrations -- Dielectric Response of a Thin Sheet -- Measurement of the Optical Dielectric Function of Monolayer Transition Metal Dichalcogenides: MoS2, MoSe2, WS2, and WSe2 -- Measurement of the Second-Order Nonlinear Susceptibility and Probing Symmetry Properties of Few-Layer MoS2 and h-BN by Optical Second-Harmonic Generation -- Valley Splitting and Polarization by Zeeman Effect in Monolayer MoSe2 -- Conclusion and Prospect.

This thesis focuses on the study of the optical response of new atomically thin two-dimensional crystals, principally the family of transition metal dichalcogenides like MoS2. One central theme of the thesis is the precise treatment of the linear and second-order nonlinear optical susceptibilities of atomically thin transition metal dichalcogenides. In addition to their significant scientific interest as fundamental material responses, these studies provide essential knowledge and convenient characterization tools for the application of these 2D materials in opto-electronic devices. Another important theme of the thesis is the valley physics of atomically thin transition metal dichalcogenides. It is shown that the degeneracy in the valley degree of freedom can be lifted and a valley polarization can be created using a magnetic field, which breaks time reversal symmetry in these materials. These findings enhance our basic understanding of the valley electronic states and open up new opportunities for valleytronic applications using two-dimensional materials.

ISBN: 9783319253763

Standard No.: 10.1007/978-3-319-25376-3doiSubjects--Topical Terms:

557748
Lasers.

LC Class. No.: TA1671-1707

Dewey Class. No.: 621.36

Probing the Response of Two-Dimensional Crystals by Optical Spectroscopy
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520 $a This thesis focuses on the study of the optical response of new atomically thin two-dimensional crystals, principally the family of transition metal dichalcogenides like MoS2. One central theme of the thesis is the precise treatment of the linear and second-order nonlinear optical susceptibilities of atomically thin transition metal dichalcogenides. In addition to their significant scientific interest as fundamental material responses, these studies provide essential knowledge and convenient characterization tools for the application of these 2D materials in opto-electronic devices. Another important theme of the thesis is the valley physics of atomically thin transition metal dichalcogenides. It is shown that the degeneracy in the valley degree of freedom can be lifted and a valley polarization can be created using a magnetic field, which breaks time reversal symmetry in these materials. These findings enhance our basic understanding of the valley electronic states and open up new opportunities for valleytronic applications using two-dimensional materials.
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