H2020Индивидуална стипендия2017–2019

NonlinearMeta · Controlling optical nonlinearity with plasmonic metamaterials

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2017-03-01 → 2019-02-28
Финансиране от ЕС: 195 455 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Плазмонните метаматериали се изследват, за да се увеличи ефективността на преобразуване на светлината, например при промяна на честотата ѝ. Това помага за създаването на по-компактни сензори и устройства за обработка на информация в наномащаб.

Този кратък обзор е генериран от изкуствен интелект

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

Резултати накратко

Controlling optical nonlinearity with plasmonic metamaterials

The overall objective of the project ‘NonlinearMeta’ by Dr. Shumei Chen is to develop ultra-compact, high-efficient, and dynamically controllable nonlinear photonic metasurface to open up exciting opportunities and new applications in the areas of light information processing at nanoscale interfaces. Recently, nonlinear photonic metasurfaces consisting of spatially varying nanostructures have attracted great interest in the fields of frequency conversion, bio-sensing, optical communication and quantum optics. However, one of the key problem that limits the application of nonlinear photonic metasurface is its extremely low conversion efficiency. In this project, Dr. Chen has proposed several concepts for enhancing the conversion efficiency of various nonlinear optical processes by introducing strong light localization in both silicon photonic metasurfaces and multi-layer thin film based photonic devices. Dr. Chen also investigated the giant circular dichroism effect in second harmonic generation from achiral metasurface and the rotational Doppler effect from rotating metasurfaces with rotational symmetries. Moreover, based on the concept of nonlinear geometric Berry phase, Dr. Chen has developed several plasmonic metasurface to study the spin-orbital interactions in both second harmonic generation and four wave mixing process. It is expected that such nonlinear photonic metasurface devices can greatly enrich the functionalities of nonlinear photonic crystals and lead to a promising way of developing on-chip nonlinear optical sources and sensors. The Project “NonlinearMeta” has been successfully provided novel routes for controlling the amplitude and phase of second and third harmonic generation processes on nonlinear photonic metasurfaces, which is of potential importance for developing novel information processing techniques of light. The project has fully achieved its objectives and technical goals. The project has delivered nonlinear photonic metasurface devices with improved optical efficiencies and multi-functionalities to both the academic and industrial communities. The science and technology on nonlinear photonic metasurfaces, electrically controlled harmonic generation, and giant nonlinear circular dichroism could be transferred to high-tech companies in optoelectronic industry, and finally contribute to the national economic success.

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

Цел на проекта

Metamaterials are artificial photonic structures that have revolutionised the field of optics by bringing an array of novel optical properties and applications into reality such as negative refraction and invisibility cloaking. However, the control over electromagnetic waves with metamaterials is so far mostly limited to the linear regime. On the other hand, nonlinear optical effects, such as harmonic generations, are very important technically and have been widely employed in various applications such as laser sources, optical information processing, optical communications, quantum technology and integrated photonic circuits. In this project, the applicant in collaboration with the supervisor at the host institution will explore a new class of metamaterials that enable unprecedented control over the nonlinear susceptibilities. The nonlinear susceptibility control is based on a novel mechanism that involves Berry phase in the nonlinear optical regime, which arises from the coupling between the spin of the photons and the orientation of the individual optical antennas. The realisation of such nonlinear metamaterials would enable exact phase matching condition for achieving high conversion efficiency, nonlinear holography for information coding, and gigantic nonlinear circular dichroism with harmonic generations. In addition, this project will incorporate organic polymers into the plasmonic metamaterial design to further enhance the efficiencies of harmonic generations. Upon completion of this project, the applicant is expected to acquire strong background in metamaterials and nonlinear optics and becomes a scientific leader in these growing research areas.

Оригинален текст от CORDIS (на английски).

Участници

THE UNIVERSITY OF BIRMINGHAM · BirminghamКоординаторОбединеното кралство