579 citations · 3.3k across the 62 of their papers we have counts for
63 papers
Anisotropic linear and non-linear excitonic optical properties of buckled monolayer semiconductors
M. F. C. Martins Quintela, T. Garm Pedersen
The optical properties of two-dimensional materials are exceptional in several respects. They are highly anisotropic and frequently dominated by excitonic effects. Dipole-allowed s…
Nanoscale view of engineered massive Dirac quasiparticles in lithographic superstructures
Alfred J. H. Jones, Lene Gammelgaard, Mikkel O. Sauer +13
Massive Dirac fermions are low-energy electronic excitations characterized by a hyperbolic band dispersion. They play a central role in several emerging physical phenomena such as…
Exciton absorption, band structure, and optical emission in biased bilayer graphene
Mikkel Ohm Sauer, Thomas Garm Pedersen
Biased bilayer graphene (BBG) is a variable band gap semiconductor, with a strongly field-dependent band gap of up to , making it of particular interest for grap…
Dynamic polarizability of low-dimensional excitons
Thomas Garm Pedersen
Excitons in low-dimensional materials behave mathematically as confined hydrogen atoms. An appealing unified description of confinement in quantum wells or wires, etc., is found by…
Calculation of the nonlinear response functions of intra-exciton transitions in two-dimensional transition metal dichalcogenides
J. C. G. Henriques, Høgni C. Kamban, Thomas G. Pedersen +1
In this paper, we study the third-order nonlinear optical response due to transitions between excitonic levels in two-dimensional transition metal dichalcogeniedes. To accomplish t…
Efficient ionization of two dimensional excitons by intense single cycle terahertz pulses
Høgni C. Kamban, Thomas G. Pedersen
External electric fields are highly attractive for dynamical manipulation of excitons in two-dimensional materials. Here, we theoretically study the ionization of excitons in monol…