The sensitivity of a sensor to strain or the temperature variations due to distributed Brillouin scattering are partially related to the type of fibers used and the Brillouin scattering induced effective index. In this paper, a highly nonlinear fiber that can generate a higher Brillouin scattering signal is compared to a standard single mode fiber in a short-time-Fourier-transform Brillouin opt...

We propose a multiscale approach for nonlinear Helmholtz problem with possible oscillations in the Kerr coefficient, refractive index, and diffusion coefficient. The method does not rely on structural assumptions coefficients combines technique known as Localized Orthogonal Decomposition an adaptive iterative approximation of nonlinearity. rigorously analyze terms well-posedness convergence pro...

A bstract We present the two-body Hamiltonian and associated eikonal phase, to leading post-Minkowskian order, for infinitely many tidal deformations described by operators with arbitrary powers of curvature tensor. Scattering amplitudes in momentum position space provide systematic complementary approaches. For quadratic curvature, which describe linear response an external gravitational field...