153 citations · 368 across the 12 of their papers we have counts for
12 papers
Exciton-assisted electron tunneling in van der Waals heterostructures
Lujun Wang, Sotirios Papadopoulos, Fadil Iyikanat +8
The control of elastic and inelastic electron tunneling relies on materials with well defined interfaces. Van der Waals materials made of two-dimensional constituents form an ideal…
Coherent Smith-Purcell -Ray Emission
Kamran Akbari, Simone Gargiulo, Fabrizio Carbone +1
We investigate the Smith-Purcell emission produced by electron- or ion-beam-driven coherent excitation of nuclei arranged in periodic crystal lattices. The excitation and subsequen…
Approaching the Purcell factor limit with whispering-gallery hyperbolic phonon polaritons in hBN nanotubes
Xiangdong Guo, Ning Li, Xiaoxia Yang +9
Enhanced light-matter interaction at the nanoscale is pivotal in the foundation of nonlinear optics, quantum optics, and nanophotonics, which are essential for a vast range of appl…
Ultrafast Momentum-Resolved Probing of Plasmon Thermal Dynamics with Free Electrons
Vahagn Mkhitaryan, Eduardo J. C. Dias, Fabrizio Carbone +1
Current advances in ultrafast electron microscopy make it possible to combine optical pumping of a nanostructure and electron beam probing with subångstrom and femtosecond spatiote…
Optical Excitations with Electron Beams: Challenges and Opportunities
F. Javier García de Abajo, Valerio Di Giulio
Free electron beams such as those employed in electron microscopes have evolved into powerful tools to investigate photonic nanostructures with an unrivaled combination of spatial…
Electron Beam Aberration Correction Using Optical Near Fields
Andrea Konečná, F. Javier García de Abajo
The interaction between free electrons and optical near fields is attracting increasing attention as a way to manipulate the electron wave function in space, time, and energy. Rely…
Theory of EELS in atomically thin metallic films
A. Rodríguez Echarri, Enok Johannes Haahr Skjølstrup, Thomas G. Pedersen +1
We study strongly confined plasmons in ultrathin gold and silver films by simulating electron energy-loss spectroscopy (EELS). Plasmon dispersion relations are directly retrieved f…
Nanoscale Nonlinear Spectroscopy with Electron Beams
Andrea Konečná, Valerio Di Giulio, Vahagn Mkhitaryan +2
We theoretically demonstrate the ability of electron beams to probe the nonlinear photonic response with nanometer spatial resolution, well beyond the capabilities of existing opti…
Strong-field-driven dynamics and high-harmonic generation in interacting 1D systems
Sandra de Vega, Joel D. Cox, Fernando Sols +1
We explore the roles of electronic band structure and Coulomb interactions in solid-state HHG by studying the optical response of linear atomic chains and carbon nanotubes to inten…
Electrically driven photon emission from individual atomic defects in monolayer WS2
Bruno Schuler, Katherine A. Cochrane, Christoph Kastl +7
Optical quantum emitters are a key component of quantum devices for metrology and information processing. In particular, atomic defects in 2D materials can operate as optical quant…
Emergence of material momentum in optical media
Deng Pan, Hongxing Xu, F Javier García de Abajo
Understanding the momentum of light when propagating through optical media is not only fundamental for studies as varied as classical electrodynamics and polaritonics in condensed…
Plasmon generation through electron tunneling in twisted double-layer graphene and metal-insulator-graphene systems
Sandra de Vega, F. Javier García de Abajo
The generation of highly-confined plasmons through far-field optical illumination appears to be impractical for technological applications due to their large energy-momentum mismat…