285 citations · 972 across the 16 of their papers we have counts for
16 papers
Probing Electronic States in Monolayer Semiconductors through Static and Transient Third-Harmonic Spectroscopy
Yadong Wang, Fadil Iyikanat, Habib Rostami +10
Electronic states and their dynamics are of critical importance for electronic and optoelectronic applications. Here, we probe various relevant electronic states in monolayer MoS2,…
Revealing Nanoscale Confinement Effects on Hyperbolic Phonon Polaritons with an Electron Beam
Andrea Konečná, Jiahan Li, James H. Edgar +2
Hyperbolic phonon polaritons (HPhPs) in hexagonal boron nitride (hBN) enable the direct manipulation of mid-infrared light at nanometer scales, many orders of magnitude below the f…
Modulation of Cathodoluminescence Emission by Interference with External Light
Valerio Di Giulio, Ofer Kfir, Claus Ropers +1
Spontaneous processes triggered in a sample by free electrons are commonly regarded as incoherent, and therefore unable to interfere with external light sources. Here, we challenge…
Can Copper Nanostructures Sustain High-Quality Plasmons?
Vahagn Mkhitaryan, Katia March, Eric Tseng +10
Silver is considered to be the king among plasmonic materials because it features low inelastic absorption in the visible and infrared (vis-IR) spectral regions compared to other m…
Optical Modulation of Electron Beams in Free Space
F. Javier García de Abajo, Andrea Konečná
We exploit free-space interactions between electron beams and tailored light fields to imprint on-demand phase profiles on the electron wave functions. Through rigorous semiclassic…
Complete Coupling of Focused Light to Surface Polaritons
Eduardo J. C. Dias, F. Javier García de Abajo
Surface polaritons display short wavelengths compared to propagating light, thus enabling large spatial concentration and enhancement of electromagnetic energy. However, this wavel…
Anomalous thermodiffusion of electrons in graphene
Deng Pan, Hongxing Xu, F. Javier García de Abajo
We reveal a dramatic departure of electron thermodiffusion in solids relative to the commonly accepted picture of the ideal free-electron gas model. In particular, we show that the…
Tailored nanoscale plasmon-enhanced vibrational electron spectroscopy
Luiz H. G. Tizei, Vahagn Mkhitaryan, Hugo Lourenço-Martins +12
Vibrational optical spectroscopies can be enhanced by surface plasmons to reach molecular-sized limits of detection and characterization. The level of enhancement strongly depends…
Nonlinear atom-plasmon interactions enabled by nanostructured graphene
Joel D. Cox, F. Javier García de Abajo
Electrically tunable graphene plasmons are anticipated to enable strong light-matter interactions with resonant quantum emitters. However, plasmon resonances in graphene are typica…
Fundamental Limits to the Coupling between Light and 2D Polaritons by Small Scatterers
Eduardo J. C. Dias, F. Javier García de Abajo
Polaritonic modes in two-dimensional van der Waals materials display short in-plane wavelengths compared with light in free space. As interesting as this may look from both fundame…
Tunable plasmons in ultrathin metal films
Rinu Abraham Maniyara, Daniel Rodrigo, Renwen Yu +7
The physics of electrons, photons, and their plasmonic interactions changes greatly when one or more dimensions are reduced down to the nanometer scale. For example, graphene shows…
Photothermal Engineering of Graphene Plasmons
Renwen Yu, Qiushi Guo, Fengnian Xia +1
Nanoscale photothermal sources find important applications in theranostics, imaging, and catalysis. In this context, graphene offers a unique suite of optical, electrical, and ther…
Molecular Sensing with Tunable Graphene Plasmons
Andrea Marini, Iván Silveiro, F. Javier García de Abajo
We study the potential of graphene plasmons for spectrometer-free sensing based on surface-enhanced infrared absorption and Raman scattering. The large electrical tunability of the…
Continuous-Wave Multiphoton Photoemission from Plasmonic Nanostars
Murat Sivis, Nicolas Pazos-Perez, Renwen Yu +3
Highly nonlinear optical processes, such as multiphoton photoemission, require high intensities, typically achieved with ultrashort laser pulses and, hence, were first observed wit…
Resonant Visible Light Modulation with Graphene
Renwen Yu, Valerio Pruneri, F. Javier Garcia de Abajo
Fast modulation and switching of light at visible and near-infrared (vis-NIR) frequencies is of utmost importance for optical signal processing and sensing technologies. No fundame…
Plasmon-enhanced nonlinear wave mixing in nanostructured graphene
Joel D. Cox, F. Javier Garcia de Abajo
Localized plasmons in metallic nanostructures have been widely used to enhance nonlinear optical effects due to their ability to concentrate and enhance light down to extreme-subwa…