Storing and retrieving multiple images in 3D nonlinear photonic crystals

摘要

A nonlinear hologram enables to record the amplitude and phase of a waveform by spatially modulating the second order nonlinear coefficient,so that when a pump laser illuminates it,this waveform is reconstructed at the second harmonic frequency.The concept was now extended to enable the generation of multiple waveforms from a single hologram,with potential applications in high density storage,quantum optics,and optical microscopy.