Colloquium: Topological band theory

A Bansil, H Lin, T Das - Reviews of Modern Physics, 2016 - APS
The first-principles band theory paradigm has been a key player not only in the process of
discovering new classes of topologically interesting materials, but also for identifying salient …

Recent progress of two-dimensional materials for ultrafast photonics

A Zhang, Z Wang, H Ouyang, W Lyu, J Sun, Y Cheng… - Nanomaterials, 2021 - mdpi.com
Owing to their extraordinary physical and chemical properties, two-dimensional (2D)
materials have aroused extensive attention and have been widely used in photonic and …

Graphene–Bi2Te3 Heterostructure as Saturable Absorber for Short Pulse Generation

H Mu, Z Wang, J Yuan, S Xiao, C Chen, Y Chen… - Acs …, 2015 - ACS Publications
Rapid progresses have been achieved in the photonic applications of two-dimensional
materials such as graphene, transition metal dichalcogenides, and topological insulators …

Milliwatt terahertz harmonic generation from topological insulator metamaterials

KJ Tielrooij, A Principi, DS Reig, A Block… - Light: Science & …, 2022 - nature.com
Achieving efficient, high-power harmonic generation in the terahertz spectral domain has
technological applications, for example, in sixth generation (6G) communication networks …

[HTML][HTML] Nonlinear optical response of niobium telluride and its application for demonstrating pulsed fiber lasers

X Shang, Y Zhang, T Li, H Zhang, X Zou, S Wageh… - Journal of …, 2024 - Elsevier
Abstract Niobium telluride (NbTe 2), a kind of few-layer two-dimensional (2D) transition
metal dichalcogenides (TMDs) material, has been theoretically predicted with nonlinear …

Distinguishing Bulk and Surface Electron-Phonon Coupling in the Topological Insulator Using Time-Resolved Photoemission Spectroscopy

JA Sobota, SL Yang, D Leuenberger, AF Kemper… - Physical review …, 2014 - APS
We report time-and angle-resolved photoemission spectroscopy measurements on the
topological insulator Bi 2 Se 3. We observe oscillatory modulations of the electronic structure …

Floquet Weyl semimetal induced by off-resonant light

R Wang, B Wang, R Shen, L Sheng… - Europhysics …, 2014 - iopscience.iop.org
We propose that a Floquet Weyl semimetal state can be induced in three-dimensional
topological insulators, either non-magnetic or magnetic, by the application of off-resonant …

Revealing the Substrate Dependent Ultrafast Phonon Dynamics in Bi2Se3 Thin Films

SK Saini, NK Tailor, P Sharma, L Tyagi… - Advanced Materials …, 2023 - Wiley Online Library
The bulk carrier excitation influences the phonon dynamics, which can alter and modulate
the surface charge density of topological insulators such as bismuth selenide (Bi2Se3). This …

Ultrafast terahertz dynamics of hot Dirac-electron surface scattering in the topological insulator

S Sim, M Brahlek, N Koirala, S Cha, S Oh, H Choi - Physical Review B, 2014 - APS
Two-dimensional surface-scattering dynamics are central in the physics of topological
insulators. Numerous electrical and optical measurements have evidenced that the origins …

Ultrafast interfacial carrier dynamics and persistent topological surface states of Bi2Se3 in heterojunctions with VSe2

TG Park, JH Jeon, SH Chun, S Lee… - Communications …, 2022 - nature.com
Vanadium diselenide (VSe2) has recently been highlighted as an efficient 2D electrode
owing to its extra-high conductivity, thickness controllability, and van der Waals contact …