THE TIME-MARCHED FFP FOR MODELING ACOUSTIC PULSE PROPAGATION

The Time-marched Ffp for Modeling Acoustic Pulse Propagation

Real Time Modeling of Acoustic Propagation in Complex Environments

In order to achieve high-quality audio-realistic rendering in complex environments, we need to determine all the acoustic paths that go from sources to receivers, due to specular reflections as well as diffraction phenomena. In this paper we propose a novel method for computing and auralizing the reflected as well as the diffracted field in 2.5D environments. The method is based on a preliminar...

Time domain modeling of acoustic propagation with acoustic wave propagator and absorbing boundary conditions

Modeling of Nonlinear Ultrashort Optical Pulse Propagation

I present a numerical package, written in MATLAB, which provides a simplified scripting interface for simulating a host of ultrashort pulse propagation phenomena. With the proliferation of ultrashort laser technologies, the demand for efficient and accurate simulations has grown significantly. Here I introduce a linear-operator-based formalism for nonlinear pulse propagation beyond the slowly-v...

Nonlinear pulse propagation: a time-transformation approach.

We present a time-transformation approach for studying the propagation of optical pulses inside a nonlinear medium. Unlike the conventional way of solving for the slowly varying amplitude of an optical pulse, our new approach maps directly the input electric field to the output one, without making the slowly varying envelope approximation. Conceptually, the time-transformation approach shows th...