75 citations · 324 across the 11 of their papers we have counts for
13 papers
Quantum Control of Thermal Emission from Photonic Crystals with Two-Level Atoms
Chih-Wei Wang, Jhih-Sheng Wu
Thermal light engineering is a field of considerable interest and potential. We study quantum light-matter interactions in a one-dimensional photonic crystal with two-level atoms a…
One-dimensional spin-flipping topological edge state laser
Jhih-Sheng Wu, Zhen-Ting Huang, Meng-Ting Han +2
Topological edge states manifest spin-momentum-locking propagation as a primary consequence of topological crystals. However, experimental studies on spin manipulation and the resu…
Strain-tunable synthetic gauge fields in topological photonic graphene
Zhen-Ting Huang, Kuo-Bin Hong, Ray-Kuang Lee +4
We propose a straightforward and effective approach to design, by strain-engineering, photonic topological insulators supporting high quality factors edge states. Chiral strain-eng…
TMDC-based topological nanospaser: single and double threshold behavior
Rupesh Ghimire, Fatemeh Nematollahi, Jhih-Sheng Wu +2
We theoretically study a topological nanospaser, which consists of a silver nanospheroid and MoS monolayer ake of a circular shape. The metal nanospheroid acts as a plasmonic n…
Topological Nanospaser
Rupesh Ghimire, Jhih-Sheng Wu, Vadym Apalkov +1
We propose a nanospaser made of an achiral plasmonic-metal nanodisk and a two-dimensional chiral gain medium -- a monolayer transition-metal dichalcogenide (TMDC). When one valley…
Topological Spaser
Jhih-Sheng Wu, Vadym Apalkov, Mark I. Stockman
We theoretically introduce a topological spaser, which consists of a hexagonal array of plasmonic metal nanoshells containing an achiral gain medium in their cores. Such a spaser c…
Fundamentally fastest optical processes at the surface of a topological insulator
S. Azar Oliaei Motlagh, Jhih-Sheng Wu, Vadym Apalkov +1
We predict that a single oscillation of a strong optical pulse can significantly populate the surface conduction band of a three-dimensional topological insulator, Bi2Se3. Both lin…
Femtosecond valley polarization and topological resonances in transition metal dichalcogenides
S. Azar Oliaei Motlagh, Jhih-Sheng Wu, Vadym Apalkov +1
We theoretically introduce the fundamentally fastest induction of a significant population and valley polarization in a monolayer of a transition metal dichalcogenide (i.e., $\math…
Electrical detection of hyperbolic phonon-polaritons in heterostructures of graphene and boron nitride
Achim Woessner, Romain Parret, Diana Davydovskaya +11
Light properties in the mid-infrared can be controlled at a deep subwavelength scale using hyperbolic phonons-polaritons (HPPs) of hexagonal boron nitride (h-BN). While propagating…
Faraday rotation due to surface states in the topological insulator (BiSb)Te
Yinming Shao, Kirk W. Post, Jhih-Sheng Wu +9
Using magneto-infrared spectroscopy, we have explored the charge dynamics of (Bi,Sb)Te thin films on InP substrates. From the magneto-transmission data we extracted three d…
Topological insulators are tunable waveguides for hyperbolic polaritons
Jhih-Sheng Wu, D. N. Basov, M. M. Fogler
Layered topological insulators, for example, BiSe are optically hyperbolic materials in a range of THz frequencies. Such materials possess deeply subdiffractional, highly d…
Scattering of two-dimensional massless Dirac electrons by a circular potential barrier
Jhih-Sheng Wu, Michael M. Fogler
We calculate the differential, total, and transport cross-sections for scattering of two-dimensional massless Dirac electrons by a circular barrier. For scatterer of a small radius…
Spin and charge transport in U-shaped one-dimensional channels with spin-orbit couplings
Ming-Hao Liu, Jhih-Sheng Wu, Son-Hsien Chen +1
A general form of the Hamiltonian for electrons confined to a curved one-dimensional (1D) channel with spin-orbit coupling (SOC) linear in momentum is rederived and is applied to a…