Spatiotemporal light control with active metasurfaces
BACKGROUND Metasurfaces have opened up a number of remarkable new approaches to
manipulate light. These flat optical elements are constructed from a dense array of strongly …
manipulate light. These flat optical elements are constructed from a dense array of strongly …
Recent advances in tunable metasurfaces: materials, design, and applications
Metasurfaces, a two-dimensional (2D) form of metamaterials constituted by planar meta-
atoms, exhibit exotic abilities to tailor electromagnetic (EM) waves freely. Over the past …
atoms, exhibit exotic abilities to tailor electromagnetic (EM) waves freely. Over the past …
[HTML][HTML] Bidirectional and reversible tuning of the interlayer spacing of two-dimensional materials
Interlayer spacing is expected to influence the properties of multilayer two-dimensional (2D)
materials. However, the ability to non-destructively regulate the interlayer spacing …
materials. However, the ability to non-destructively regulate the interlayer spacing …
Light-Tunable Surface State and Hybridization Gap in Magnetic Topological Insulator MnBi8Te13
MnBi8Te13 is an intrinsic ferromagnetic (FM) topological insulator with different complex
surface terminations. Resolving the electronic structures of different termination surfaces and …
surface terminations. Resolving the electronic structures of different termination surfaces and …
[HTML][HTML] Time-domain investigations of coherent phonons in van der waals thin films
F Vialla, N Del Fatti - Nanomaterials, 2020 - mdpi.com
Coherent phonons can be launched in materials upon localized pulsed optical excitation,
and be subsequently followed in time-domain, with a sub-picosecond resolution, using a …
and be subsequently followed in time-domain, with a sub-picosecond resolution, using a …
Ultrafast excitonic response in two-dimensional hybrid perovskites driven by intense midinfrared pulses
Two-dimensional organic-inorganic hybrid perovskites (2DHPs) are natural quantum-well-
like materials, in which strong quantum and dielectric confinement effects due to the organic …
like materials, in which strong quantum and dielectric confinement effects due to the organic …
Observation of Anisotropic Strain-Wave Dynamics and Few-Layer Dephasing in MoS2 with Ultrafast Electron Microscopy
Y Zhang, DJ Flannigan - Nano letters, 2019 - ACS Publications
The large elastic strains that can be sustained by transition metal dichalcogenides (TMDs),
and the sensitivity of electronic properties to that strain, make these materials attractive …
and the sensitivity of electronic properties to that strain, make these materials attractive …
The lifetime of interlayer breathing modes of few-layer 2H-MoSe 2 membranes
A time-resolved observation of coherent interlayer longitudinal acoustic phonons in thin
layers of 2H-MoSe2 is reported. A femtosecond pump–probe technique is used to …
layers of 2H-MoSe2 is reported. A femtosecond pump–probe technique is used to …
Imaging nanometer phonon softening at crystal surface steps with 4D ultrafast electron microscopy
Y Zhang, DJ Flannigan - Nano letters, 2021 - ACS Publications
Step edges are an important and prevalent topological feature that influence catalytic,
electronic, vibrational, and structural properties arising from modulation of atomic-scale force …
electronic, vibrational, and structural properties arising from modulation of atomic-scale force …
[HTML][HTML] Free-electron interactions with van der Waals heterostructures: a source of focused X-ray radiation
The science and technology of X-ray optics have come far, enabling the focusing of X-rays
for applications in high-resolution X-ray spectroscopy, imaging, and irradiation. In spite of …
for applications in high-resolution X-ray spectroscopy, imaging, and irradiation. In spite of …