Journal ArticleDOI
Topological insulator as an optical modulator for pulsed solid‐state lasers
Haohai Yu,Han Zhang,Yicheng Wang,Chujun Zhao,Baolin Wang,Shuangchun Wen,Huaijin Zhang,Jiyang Wang +7 more
TLDR
In this paper, it was demonstrated that a topological insulator can modulate the operation of a bulk solid-state laser by taking advantage of its saturable absorption, which is potentially attractive as broadband pulsed modulators for the generation of short and ultrashort pulses in bulk solid state lasers, in addition to other promising applications in physics and computing.Abstract:
Topological insulators are states of quantum matter that have narrow topological nontrivial energy gaps and a large third-order nonlinear optical response. The optical absorption of topological insulators can become saturated under strong excitation. In this work, with Bi2Se3 as an example, it was demonstrated that a topological insulator can modulate the operation of a bulk solid-state laser by taking advantage of its saturable absorption. The result suggests that topological insulators are potentially attractive as broadband pulsed modulators for the generation of short and ultrashort pulses in bulk solid-state lasers, in addition to other promising applications in physics and computing.read more
Citations
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Journal ArticleDOI
Broadband Few‐Layer MoS2 Saturable Absorbers
Shuxian Wang,Haohai Yu,Huaijin Zhang,Aizhu Wang,Mingwen Zhao,Yanxue Chen,Liangmo Mei,Jiyang Wang +7 more
TL;DR: The operation of a broadband MoS2 saturable absorber is demonstrated by the introduction of suitable defects and it is believed that the results provide some inspiration in the investigation of two-dimensional optoelectronic materials.
Journal ArticleDOI
WS2 mode-locked ultrafast fiber laser
Dong Mao,Dong Mao,Yadong Wang,Yadong Wang,Chaojie Ma,Chaojie Ma,Lei Han,Lei Han,Biqiang Jiang,Biqiang Jiang,Xuetao Gan,Xuetao Gan,Shijia Hua,Shijia Hua,Wending Zhang,Wending Zhang,Ting Mei,Ting Mei,Jianlin Zhao,Jianlin Zhao +19 more
TL;DR: It is demonstrated for the first time that WS2 nanosheets exhibit ultrafast nonlinear saturable absorption property and high optical damage threshold, indicating that few-layer WS2 is a promising high-power flexible saturable absorber for ultrafast optics.
Journal ArticleDOI
Femtosecond pulse erbium-doped fiber laser by a few-layer MoS 2 saturable absorber
Hao Liu,Ai-Ping Luo,Fu-Zao Wang,Rui Tang,Meng Liu,Zhi-Chao Luo,Wen-Cheng Xu,Chujun Zhao,Han Zhang +8 more
TL;DR: The generation of a femtosecond pulse in a fiber ring laser by using a polyvinyl alcohol (PVA)-based molybdenum disulfide (MoS(2) SA) saturable absorber indicates that the filmy PVA-based MoS( 2) SA is indeed a good candidate for an ultrafast saturable absorption device.
Journal ArticleDOI
2D Layered Materials: Synthesis, Nonlinear Optical Properties, and Device Applications
References
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Journal ArticleDOI
Colloquium: Topological insulators
M. Z. Hasan,Charles L. Kane +1 more
TL;DR: In this paper, the theoretical foundation for topological insulators and superconductors is reviewed and recent experiments are described in which the signatures of topologically insulators have been observed.
Journal ArticleDOI
Topological insulators and superconductors
Xiao-Liang Qi,Shou-Cheng Zhang +1 more
TL;DR: Topological superconductors are new states of quantum matter which cannot be adiabatically connected to conventional insulators and semiconductors and are characterized by a full insulating gap in the bulk and gapless edge or surface states which are protected by time reversal symmetry.
Journal ArticleDOI
Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
TL;DR: In this article, the quantum spin Hall (QSH) effect can be realized in mercury-cadmium telluride semiconductor quantum wells, a state of matter with topological properties distinct from those of conventional insulators.
Journal ArticleDOI
Topological insulators in Bi2Se3, Bi2Te3 and Sb2Te3 with a single Dirac cone on the surface
TL;DR: In this article, first-principles electronic structure calculations of the layered, stoichiometric crystals Sb2Te3, Bi2Se3, SbSe3 and BiSe3 were performed.