Scientific project and main topics


This project aims at creating a scientific research network between French and Chinese groups, laboratories, and universities in the field of Optoelectronics and Photonics. In this purpose, the GDRI will rely on the development of already existing relationships, will actively promote new ones, and will encourage joint research contractual projects (ANR, NSFC, etc).

Our analysis is that French CNRS laboratories have already welcomed many Chinese students in the last years through individual PhD student applications (China Scholarship Council grants, contrats des Ecoles doctorales françaises). Through the GDRI, we would like to sustain medium-and-long-term links with these Chinese PhD students and Chinese research teams (professors and laboratories/universities). It would also give the opportunity to French researchers or students to benefit of Chinese research dynamics.

The project is seen as a relatively flexible framework of Franco-Chinese cooperation to develop mutual understanding of the two optoelectronics and photonics research communities (exchange of visiting professors, joint PhD theses, etc). In a context of strong international competition, the GDRI label will contribute to a better visibility of the French and Chinese research mutual activities in the field of optoelectronics and photonics (the CNRS GDRI label will be quoted in all journal/conference publications, awards of the network, alternating symposium in France and China, etc).

                    

In the interest of scientific openness and of medium and long term collaborations, we want to focus on an "exploratory" position corresponding to low TRL (1-3) approaches of the ANR or H2020 standards.

The scientific scope of the GDRI covers several areas, which can be classified into three main topics: integrated photonics, nanophotonics, and materials for photonics.

Integrated photonics is here mainly concerned with silicon photonics, photonic integrated circuits, all-optical signal processing and optical sensors. A collaboration over several years between teams at WNLO (Wuhan / HUST) and IEF (UMR 8622 / Orsay) has focused on this area, largely on waveguiding structures design, optical resonators, and photonic crystals at telecommunication wavelengths. The current program now also covers hybrid integration on silicon, including polymers or oxides, III-V structures, and involves other French (INL, Institut Fresnel : Marseille and MA) and Chinese partners (Zhejiang, Peking and Fudan Universities). These works naturally lead to the development of components for telecommunications and the characterization and integration of new modulation formats. Regular exchanges between WNLO and a French professor from FOTON (Lannion/Rennes) are related to this activity, in which LPN (Lyon) is also active.

The concepts of guided and integrated photonics developed over several decades for optical telecommunications are now transferable to applications of visible-light photonics thanks to nanotechnology. Nanophotonics also addresses basic structures based on metamaterials, metasurfaces and plasmons, which can lead to non-linear interactions. In particular, plasmonic interactions are studied in order to enhance physical effects, to guide light on sub-wavelength dimensions or to obtain new nanoantennas type functions, especially in the visible, as it is widely studied at IEF, IF, Tsinghua University, Fudan University and WNLO.

All these research topics are supported by the development of specific materials, including nanostructured materials. For example a collaboration sustained by PSA for automotive applications has been developed between WNLO and IEF in order to study miniaturized plasmonic based components combined with amplification using organic structures (OLED). Another aspect is to realize optical biosensors based resonators or photovoltaic cells as developed by IPCMS, IF, or IEF. Periodically (nano-)structured metamaterials and metasurfaces also address a large range of research activities.