HEИндивидуална стипендия2023–2025

OCOMM · Optical control over multi-membrane materials

„Хоризонт Европа“ — Действия „Мария Склодовска-Кюри“

Период: 2023-04-01 → 2025-05-31
Финансиране от ЕС: 222 728 €
Участници: 1
Схема: HORIZON-TMA-MSCA-PF-EF

Линиите свързват координатора с партньорите.

Накратко на български

Микромеханични системи от множество мембрани се изследват чрез управлението им с помощта на светлина и оптични влакна. Това помага за създаването на програмируеми акустични схеми и подобрява точността на сензорите.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Optical control over multi-membrane materials

Optomechanical devices use the interaction of light with mechanical elements through radiation pressure. They both explore fundamental questions of quantum mechanics of macroscopic system and facilitate technical applications like wavelength conversion and quantum-limited sensing. To date most of these systems only use single or few mechanical and optical resonator sites. Having control over several mechanical resonators, how they link and interact with optical modes, would open a perspective to realize optically programmable, integrated acoustic circuits. A potential platform for this are Megahertz-range mechanical resonators, where the optomechanical spring effect can be used to substantially shift the mechanical resonance frequency. The required number of photons in the optical mode can be reached within miniaturized optical resonators based on reflective optical fiber tips creating so-called fiber Fabry-Perot cavities (FFPCs). The goal of OCOMM is to develop such a micromechanical platform for coupled mechanical resonators with controllable properties that is interfaced using FFPCs for a stepping towards an optically interfaced controllable mechanical systems that is comprised of many mechanical elements.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

Acoustic metamaterials and circuits allow to shape and control the propagation of vibrations, i.e., phonons, in an artificial material. Using the interaction of phonons with light in so called optomechanical devices, single material sites can be interfaced and mechanical properties be locally tuned. Optomechanically controlled acoustic circuits hold great promise for a wide range of applications from routing and manipulation of vibrations in integrated acoustic circuits, over topological optomechanical materials and non-reciprocal devices, to optomechanical arrays. So far, optomechanical control of acoustic metamaterials on the scale of only up to two interface sites has been achieved by optomechanical crystals or coupled microdisks. The limited access to interface sites and the dominating disorder in those systems poses fundamental restrictions on the size, complexity, and amount of control over the acoustic layer.My project will realize a new platform for optically interfaced, integrated acoustic circuits that lifts the present restrictions. To this end, I will interface InGaP-membrane resonator arrays, i.e., the acoustic metamaterial, fabricated over a distributed Bragg reflector (DBR) substrate using flexibly positioned micromirrors on optical fiber tips. This system establishes an out-of-plane optical interface using a membrane-in-the-middle cavity scheme. The microscopic Fabry-Perot cavity approach enables large optomechanical spring effects that are used to individually control the acoustic material sites and that surpass both disorder and the direct mechanical coupling of acoustic resonator sites. This novel approach will allow for an unprecedented and hitherto unachieved level of optical control over acoustic metamaterials.The platform established within this project will be suited for a vast number of applications complementing other integrated device platforms and opening a pathway to concepts so far only studied in theoretical proposals.

Оригинален текст от CORDIS (на английски).

Участници

CHALMERS TEKNISKA HOGSKOLA AB · GoteborgКоординаторШвеция