Surface Acoustic Waves Stimulated Brillouin Scattering

Informations projet

SAW-SBS

N° de convention de subvention: 101001069

DOI

10.3030/101001069

Date de signature de la CE 21 Decembre 2020

Date de début 1 Avril 2021

Date de fin 31 Mars 2027

Financé au titre de

• EXCELLENT SCIENCE - European Research Council (ERC)

Coût total

€ 2 000 000,00

Contribution de l’UE

€ 2 000 000,00

Coordonné par

TECHNION - ISRAEL INSTITUTE OF TECHNOLOGY
Israel

Periodic Reporting for period 4 - SAW-SBS (Surface Acoustic Waves Stimulated Brillouin Scattering)

Période du rapport: 2024-10-01 au 2026-03-31

Résumé du contexte et des objectifs généraux du projet

The issues addressed in the SAW-SBS project are the physics and application of opto-mechanics: the use of light and sound waves together in a single device. More specifically, the devices in question are silicon circuits: the most significant technological platform of our era. Silicon devices support state of the art electronics, and in recent years they also include the use of light waves. However, the additional dimension of sound waves is still missing.

The introduction of sound waves into silicon circuits for the guiding of light would greatly enhance their capabilities in several important respects. First, the use of light and sound together would enable fundamental research into both wave phenomena and the interactions between them. In addition, sound waves on a chip would promote sensing technologies, signal processing, and communications.

The overall objectives are concepts, calculations, fabricated devices, and experimental demonstrations of how light and sound waves may interact in a single, unified silicon circuit.

Travail effectué depuis le début du projet jusqu’à la fin de la période considérée dans le rapport et principaux résultats atteints jusqu’à présent

The work performed thus far includes the following:

1. Thorough calculations of the propagation of light and sound waves in silicon devices, and of the interactions among them.
2. Fabrication of devices that enhance, control, and employ the combination of light and sound waves.
3. Construction of an experimental setup for the precise characterization of light and sound waves in silicon devices.
4. Stronger excitation of sound waves in a silicon device by external light, with 100-fold improvement upon previous works.
5. Sources of microwave-frequency signal through silicon devices of light and sound, with lower noise levels than those of previous works.
6. Method for the analysis of thin layers of materials deposited as part of silicon devices.

Progrès au-delà de l’état des connaissances et impact potentiel prévu (y compris l’impact socio-économique et les conséquences sociétales plus larges du projet jusqu’à présent)

Until the end of the project, we expect to demonstrate for the first time an interaction between optical and acoustic waves that propagate together in a waveguide within a silicon chip. That milestone, if achieved, would represent a conceptual breakthrough and address a long-standing challenge of our community. In addition, we anticipate the demonstration of better signal processing and sensing functionalities on a silicon chip through careful control of optical and acoustic waves combined.