We present the development of the first ultrafast transmission electron microscope (UTEM)
driven by localized photoemission from a field emitter cathode. We describe the …

An understanding of nanoscale energy transport and acoustic response is important for
applications of nanomaterials but hinges on a complete characterization of their structural …

Magnetic topological defects, such as vortices and Skyrmions, can be stabilized as
equilibrium structures in nanoscale geometries and by tailored intrinsic magnetic …

Surface enhanced Raman scattering (SERS) of graphene deposited by the Au nanoparticles
were investigated with the 785nm excitation. The SERS spectra are used to extract …

Monomers and dimers of spherical gold nanoparticles (NPs) exhibit highly uniform
plasmonic properties at the single-particle level due to their high structural homogeneity …

We study the ultrafast structural dynamics, in response to electronic excitations, in
heterostructures composed of size-selected Au nanoclusters on thin-film substrates with the …

In materials, the nature of the strain–stress relationship, which is fundamental to their
properties, is determined by both the linear and nonlinear elastic responses. Whereas the …

For the past thirty years, intense efforts have been made to record atomic scale movies that
reveal the movement of atoms in molecules, the fast dynamical processes in biological …

Ultrafast structural probing has greatly enhanced our understanding of the coupling of
atomic motion to electronic and phononic degrees-of-freedom in quasi-bulk materials. In bi …

Trapping of nanometer-size objects by optical tweezers is challenging because forces
become very small for nanoparticles and the resolving power of light optical (near-field) …