Coherent control of acoustic phonons in a silica fiber using a multi-GHz optical frequency comb

Mamoru Endo, Shota Kimura, Shuntaro Tani, Yohei Kobayashi

Like Comment

Received Date: 9th April 20

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."

Read in full at arXiv.

This is an abstract of a preprint hosted on an independent third party site. It has not been peer reviewed but is currently under consideration at Nature Communications.

Go to the profile of Nature Communications

Nature Communications

Nature Research, Springer Nature