24 citations · 161 across the 14 of their papers we have counts for
14 papers
Pulse shaping in the terahertz frequency range for the control of photo-excited carriers in graphene
Denis Gagnon, Joey Dumont, François Fillion-Gourdeau +1
The shape of a few-cycle terahertz (THz) laser pulse can be optimized to provide control over conduction band populations in graphene. To demonstrate this control in a theoretical…
Suppression of multiphoton resonances in driven quantum systems via pulse shape optimization
Denis Gagnon, François Fillion-Gourdeau, Joey Dumont +2
This Letter demonstrates control over multiphoton absorption processes in driven two-level systems, which include for example superconducting qubits or laser-irradiated graphene, t…
Efficiently parallelized modeling of tightly focused, large bandwidth laser pulses
Joey Dumont, François Fillion-Gourdeau, Catherine Lefebvre +2
The Stratton-Chu integral representation of electromagnetic fields is used to study the spatio-temporal properties of large bandwidth laser pulses focused by high numerical apertur…
Coherent destruction of tunneling in graphene irradiated by elliptically polarized lasers
Denis Gagnon, François Fillion-Gourdeau, Joey Dumont +2
Photo-induced transition probabilities in graphene are studied theoretically from the viewpoint of Floquet theory. Conduction band populations are computed for a strongly, periodic…
Driven quantum tunneling and pair creation with graphene Landau levels
Denis Gagnon, François Fillion-Gourdeau, Joey Dumont +2
Driven tunneling between graphene Landau levels is theoretically linked to the process of pair creation from vacuum, a prediction of quantum electrodynamics (QED). Landau levels ar…
Constructive feedback for the growth of laser-induced periodic surface structures
Jean-Luc Déziel, Joey Dumont, Denis Gagnon +3
We study the formation and growth of laser-induced periodic surface structures (LIPSSs) with the finite-difference time-domain (FDTD) method. We use a recently proposed inter-pulse…
Toward the formation of crossed laser-induced periodic surface structures
Jean-Luc Déziel, Joey Dumont, Denis Gagnon +3
The formation of a new type of laser-induced periodic surface structures using a femtosecond pulsed laser is studied on the basis of the Sipe-Drude theory solved with a FDTD scheme…
Optimization of integrated polarization filters
Denis Gagnon, Joey Dumont, Jean-Luc Déziel +1
This study reports on the design of small footprint, integrated polarization filters based on engineered photonic lattices. Using a rods-in-air lattice as a basis for a TE filter a…
Adding SALT to Coupled Microcavities: the making of active photonic molecule lasers
Denis Gagnon, Joey Dumont, Jean-Luc Déziel +1
A large body of work has accumulated over the years in the study of the optical properties of single and coupled microcavities for a variety of applications, ranging from filters t…
Ab initio investigation of lasing thresholds in photonic molecules
Denis Gagnon, Joey Dumont, Jean-Luc Déziel +1
We investigate lasing thresholds in a representative photonic molecule composed of two coupled active cylinders of slightly different radii. Specifically, we use the recently formu…
Multiobjective optimization in integrated photonics design
Denis Gagnon, Joey Dumont, Louis J. Dubé
We propose the use of the parallel tabu search algorithm (PTS) to solve combinatorial inverse design problems in integrated photonics. To assess the potential of this algorithm, we…
S and Q Matrices Reloaded: applications to open, inhomogeneous, and complex cavities
Guillaume Painchaud-April, Joey Dumont, Denis Gagnon +1
We present a versatile numerical algorithm for computing resonances of open dielectric cavities. The emphasis is on the generality of the system's configuration, i.e. the geometry…
Coherent beam shaping using two-dimensional photonic crystals
Denis Gagnon, Joey Dumont, Louis J. Dubé
Optical devices based on photonic crystals such as waveguides, lenses and beam-shapers, have received considerable theoretical and experimental attention in recent years. The produ…
Beam shaping using genetically optimized two-dimensional photonic crystals
Denis Gagnon, Joey Dumont, Louis J. Dubé
We propose the use of two-dimensional photonic crystals with engineered defects for the generation of an arbitrary-profile beam from a focused input beam. The cylindrical harmonics…