Storing and retrieving multiple images in 3D nonlinear photonic crystals

• 作者: Ady Arie
• 来源期刊: 光：科学与应用（英文版）
• 年，卷（期）: 2021,（11）
• 所属期刊栏目: News & Views
• 页码范围: 2019-2021
• 页数: 3页
• 语种: 英文

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.