579 citations · 3.3k across the 62 of their papers we have counts for
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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…
Plasmons in ultra-thin gold slabs with quantum spill-out: Fourier modal method, perturbative approach, and analytical model
Alireza Taghizadeh, Thomas G. Pedersen
We numerically study the effect of the quantum spill-out (QSO) on the plasmon mode indices of an ultra-thin metallic slab, using the Fourier modal method (FMM). To improve the conv…
Finite-difference time-domain simulation of strong-field ionization: Perfectly matched layer approach
Høgni C. Kamban, Sigurd S. Christensen, Thomas Søndergaard +1
A Finite-Difference Time-Domain (FDTD) scheme with Perfectly Matched Layers (PMLs) is considered for solving the time-dependent Schrödinger equation, and simulate the ionization of…
Field-induced dissociation of two-dimensional excitons in transition-metal dichalcogenides
Høgni C. Kamban, Thomas G. Pedersen
Generation of photocurrents in semiconducting materials requires dissociation of excitons into free charge carriers. While thermal agitation is sufficient to induce dissociation in…
Tuning of impurity-bound interlayer complexes in a van der Waals heterobilayer
Fabien Vialla, Mark Danovich, David A. Ruiz-Tijerina +10
Due to their unique two-dimensional nature, charge carriers in semiconducting transition metal dichalcogenides (TMDs) exhibit strong unscreened Coulomb interactions and sensitivity…
Nonlinear optical selection rules of excitons in monolayer transition metal dichalcogenides
Alireza Taghizadeh, T. G. Pedersen
We propose an analytical approach for calculating the linear and nonlinear optical (NLO) responses of monolayer transition metal dichalcogenides (TMDs) including excitonic effects.…