Refractive index fronts propagating in waveguides are special spatiotemporal perturbations.
The interaction of light with such fronts can be described in terms of an indirect transition …

Abstract Reasoning by analogies permeates theoretical developments in physics and
astrophysics, motivated by the unreachable nature of many phenomena at play. For …

We report on what is to our knowledge the first scattering experiment of surface waves on an
accelerating transcritical flow, which in the analogue gravity context is described by an …

The nonlinear scattering of a linear optical wave from a conservative soliton has been widely
studied in optical fibers as a mechanism for nonlinear frequency conversion. Here we …

Compact chip-scale comb sources are of significant interest for many practical applications.
Here, we experimentally study the generation of supercontinuum (SC) in an axially varying …

We construct a quasiperiodic lattice model in curved spacetime to explore the crossover
concerning both condensed matter and curved spacetime physics. We study the related …

Efficient all-optical switching is a challenging task as photons are bosons and cannot
immediately interact with each other. Consequently, one has to resort to nonlinear optical …

We demonstrate a novel approach to producing coherent, directional supercontinuum and
cascaded dispersive waves using dispersion engineering in waveguides. By pum** in the …

The generation of an optimal ultra-broadband supercontinuum (SC) is numerically
investigated in tapered and dispersion-managed (DM) silicon nanophotonic waveguides …

High-sensitivity and miniature volatile organic compound (VOC) sensor is considerably
significant for environment monitoring. Herein we performed the theoretical and …