Traveling Wave Amplification in Stationary Gratings
S. A. R. Horsley, J. B. Pendry
Abstract
We show that a grating amplitude stationary in space but oscillating in time can be modeled as independent gratings traveling in opposite directions, interacting almost exclusively with waves traveling in the same direction. We reproduce the key features of traveling gratings: Amplification, field compression, and photon production are evident when the local wave speed equals the grating velocity. We speculate that these stationary but oscillating gratings may prove easier to realize experimentally than traveling gratings.
Topics & Concepts
OpticsTraveling wavePhysicsMaterials scienceMathematical analysisMathematicsPhotonic and Optical DevicesPhotorefractive and Nonlinear OpticsMagneto-Optical Properties and Applications