218 citations · 1.4k across the 80 of their papers we have counts for
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Nonlinear wave dynamics in photonic time crystals
Fabio Biancalana
Maxwell's wave equation in the presence of a cubic nonlinearity and a periodically time-varying refractive index (a photonic time crystal) is reduced, for spatially monochromatic w…
Ultra-broadband supercontinuum generation in gas-filled photonic-crystal fibers: The epsilon-near-zero regime
Mohammed F. Saleh, Fabio Biancalana
In this Letter, we show theoretically that the nonlinear photoionisation process of a noble gas inside a hollow-core photonic crystal fibre can be exploited in obtaining broadband…
Stationary States and Instabilities of a Mobius Fibre Resonator
Calum Maitland, Matteo Conforti, Arnaud Mussot +1
We examine the steady state and dynamic behaviour of an optical resonator comprised of two interlinked fibre loops sharing a common pump. A coupled Ikeda map models with great accu…
Angular Momentum Supercontinuum from Fibre Rings
Calum Maitland, Fabio Biancalana
Broadband, coherent light carrying optical angular momentum is of potential utility for a variety of classical and quantum communication applications, but at present few such sourc…
Monopole Antimonopole Instability in Non-Hermitian Coupled Waveguides
Rosie Hayward, Fabio Biancalana
A non-Hermitian coupled waveguide system with periodically varying parameters, in which the Berry curvature is analogous to a hyperbolic magnetic monopole or antimonopole, is inves…
Optical Analogue of the Dynamical Casimir Effect in a Dispersion-Oscillating Fibre
Stefano Vezzoli, Arnaud Mussot, Niclas Westerberg +6
The dynamical Casimir effect is the generation of pairs of real particles or photons from the vacuum as a result of a non-adiabatic change of a system parameter or boundary conditi…
Polarisation and Transparency of Relativistically Rotating Two-Level Atoms
Calum Maitland, Matteo Clerici, Fabio Biancalana
Electromagnetism and light-matter interaction in rotating systems is a rich area of ongoing research. We study the interaction of light with a gas of non-interacting two-level atom…
Complex Berry phase instability in PT-symmetric coupled waveguides
Rosie Hayward, Fabio Biancalana
We show that the analogue of the geometric phase for non-Hermitian coupled waveguides with PT-symmetry and at least one periodically varying parameter can be purely imaginary, and…
Giant asymmetric self-phase modulation in superconductor thin films
Charles Robson, Fabio Biancalana
Self-phase modulation (SPM) of light pulses is found to occur strongly, at low incident intensities, in the coupling of light with superconductors. We develop a theory from a synth…
Rotating black hole geometries in a two-dimensional photon superfluid
David Vocke, Calum Maitland, Angus Prain +4
Analogue gravity studies the physics of curved spacetime in laboratory experiments, where the propagation of elementary excitations in inhomogeneous flows is mapped to those of sca…
The multi-resonant Lugiato-Lefever model
Matteo Conforti, Fabio Biancalana
We introduce a new model describing multiple resonances in Kerr optical cavities. It perfectly agrees quantitatively with the Ikeda map and predicts complex phenomena such as super…
Giant ultrafast Kerr effect in type-II superconductors
Charles W. Robson, Kieran A. Fraser, Fabio Biancalana
We study the ultrafast Kerr effect and high-harmonic generation in type-II superconductors by formulating a new model for a time-varying electromagnetic pulse normally incident on…
Linear and nonlinear photonic Jackiw-Rebbi states in waveguide arrays
Truong X. Tran, Fabio Biancalana
We study analytically and numerically the optical analogue of the Jackiw-Rebbi states in quantum field theory. These solutions exist at the interface of two binary waveguide arrays…
Anderson localisation and optical-event horizons in rogue-soliton generation
Mohammed F. Saleh, Claudio Conti, Fabio Biancalana
We unveil the relation between the linear Anderson localisation process and nonlinear modulation instability. Anderson localised modes are formed in certain temporal intervals due…
Quantum Soliton Evaporation
Leone Di Mauro Villari, Ewan M. Wright, Fabio Biancalana +1
We have very little experience of the quantum dynamics of the ubiquitous nonlinear waves. Observed phenomena in high energy physics are perturbations to linear waves, and classical…
Super-resonant radiation stimulated by high-harmonics
Cristian Redondo Loures, Thomas Roger, Daniele Faccio +1
Solitons propagating in media with higher order dispersion will shed radiation known as dispersive wave or resonant radiation, with applications in frequency broadening, deep UV so…
Dynamical centrosymmetry breaking in graphene
David N. Carvalho, Andrea Marini, Fabio Biancalana
We discover an unusual phenomenon that occurs when a graphene monolayer is illuminated by a short and intense pulse at normal incidence. Due to the pulse-induced oscillations of th…
Guiding 2.94 m using low-loss microstructured antiresonant triangular-core fibers
Yang Chen, Mohammed F. Saleh, Nicolas Y. Joly +1
We introduce a new simple design of hollow-core microstructured fiber targeted to guide mid-infrared light at a wavelength 2.94 m. The fiber has a triangular-core supported via…
Soliton dynamics in gas-filled hollow-core photonic crystal fibers
Mohammed F. Saleh, Fabio Biancalana
Gas-filled hollow-core photonic crystal fibers offer unprecedented opportunities to observe novel nonlinear phenomena. The various properties of gases that can be used to fill thes…
Tunable frequency-up/down conversion in gas-filled hollow-core photonic crystal fibers
Mohammed F. Saleh, Fabio Biancalana
Based on the interplay between photoionization and Raman effect in gas-filled photonic crystal fibers, we propose a new optical device to control frequency-conversion of ultrashort…
Strong Raman-induced non-instantaneous soliton interactions in gas-filled photonic crystal fibers
Mohammed F. Saleh, Andrea Armaroli, Andrea Marini +1
We have developed an analytical model based on the perturbation theory in order to study the optical propagation of two successive intense solitons in hollow-core photonic crystal…
Extended temporal Lugiato-Lefever equation and the effect of conjugate fields in optical resonator frequency combs
Cristian Redondo Loures, Daniele Faccio, Fabio Biancalana
Starting from the infinite-dimensional Ikeda map, we derive an extended temporal Lugiato-Lefever equation that may account for the effects of the conjugate electromagnetic fields (…
Unphysical metastability of the fundamental Raman soliton in the reduced nonlinear Schroedinger equation
Truong X. Tran, Fabio Biancalana
We demonstrate theoretically and numerically that the fundamental Raman soliton of the widely used nonlinear Schroedinger equation (NLSE) with a linear approximation of the Raman g…
Temporal condensed matter physics in gas-filled photonic crystal fibers
Mohammed F. Saleh, Andrea Armaroli, Truong X. Tran +4
Raman effect in gases can generate an extremely long-living wave of coherence that can lead to the establishment of an almost perfect periodic variation of the medium refractive in…