论文标题
使用多GHz光学频率梳子对二氧化硅纤维中声音子的相干控制
Coherent control of acoustic phonons in a silica fiber using a multi-GHz optical frequency comb
论文作者
论文摘要
长期以来，由光场与物质之间的相互作用（也称为声音子）之间的相互作用引起的多gigahertz机械振动一直是研究主题。近年来，已经开发出了专门设计的功能设备来增强轻度相互作用的强度，因为仅连续波激光器对声音声子的激发不足。但是，通过这种依赖结构的增强，相互作用的强度不能恰当地，立即控制。我们提出了一种新技术来控制有效的相互作用强度，该技术不是通过空间结构域中的材料结构，就像上述特殊设计的功能设备一样，而是通过时域中的光结构。在这里，我们使用光学频率梳子来调整光脉冲序列，显示了单模纤维中声音子对声音纤维中声音的有效激发和相干控制。我们认为，这项工作是迈向“梳子互动”的重要一步。
Multi-gigahertz mechanical vibrations stemming from interactions between light fields and matter, also known as acoustic phonons, have long been a subject of study. In recent years, specially designed functional devices have been developed to enhance the light-matter interaction strength, since the excitation of acoustic phonons by a continuous wave laser alone is insufficient. However, with such structure-dependent enhancements, the strength of the interaction cannot be aptly and instantly controlled. We propose a new technique to control the effective interaction strength, which is not via the material structure in the spatial domain, as with the above-mentioned specially designed functional devices, but through the structure of light in the time domain. Here we show the effective excitation and coherent control of acoustic phonons in a single-mode fiber using an optical frequency comb by tailoring the optical pulse train. We believe this work represents an important step towards "comb-matter interactions."
