Description du projet
Des sources laser à l’état solide basées sur des matériaux 2D pourraient combler le fossé technologique de l’infrarouge lointain
Le fait de pouvoir produire de la lumière dans les plages spectrales de l’infrarouge moyen et du térahertz a ouvert la voie à toute une multitude d’applications de détection et permis d’étudier les interactions fondamentales entre la lumière et la matière. Les lasers à cascade quantique, qui sont récemment passés du statut de curiosité de laboratoire à celui de pilier industriel, ont grandement étoffé la gamme des applications pratiques. En dépit du potentiel de ces lasers, leur capacité à combler le fossé technologique de l’infrarouge lointain, qui correspond à la plage de fréquences comprise entre 5 et 12 THz, reste limitée. Le projet EXTREME-IR a pour objectif de remédier à cette lacune en lançant une plateforme radicalement nouvelle qui exploite l’optique non linéaire dans les matériaux 2D pour produire des sources compactes et cohérentes dans l’infrarouge lointain.
Objectif
The generation of light across the mid-infrared (MIR) and terahertz (THz) spectral regions of the electromagnetic spectrum has become an enabling technology, opening up a plethora of sensing applications across the sciences, as well as enabling the study of fundamental light-matter interactions. The key disruptor in this domain is the quantum cascade laser (QCL), which has grown from a laboratory curiosity to become an essential and practical optoelectronic source for a broad range of application sectors. The expansion of applications has, however, highlighted a technology gap lying between the MIR and THz domains, between 25 μm and 60 μm (5 – 12 THz), which is termed the far-infrared (FIR). Compared to neighbouring MIR and THz domains, the FIR lacks solid-state source technologies, despite the many sensing applications that such compact sources would enable.
In the EXTREME-IR project we will breakthrough this technological barrier by pioneering a radically new platform exploiting nonlinear optics in 2D materials to realize functionalized, compact and coherent FIR sources. 2D materials are becoming an important area of scientific interest owing to their unique optical and electronic properties, distinct from bulk materials and conventional semiconductors.This has led to an extensive applicative potential ranging from quantum optics at room temperature to the next generation of ultrafast electronics. However, they have not been exploited for the FIR. Here we will use the distinct phonon spectra and extreme nonlinearities in 2D transition metal dichalcogenides (TMDs) and Dirac matter (DM) to create new optoelectronic sources for the FIR. In particular, we will capitalize on the new phenomena of giant room temperature intra-excitonic nonlinearities and efficient high harmonic generation through plasmonics and resonators, combined with state-of-the-art QCLs as optical pump sources, to access and exploit this unexplored electromagnetic region fully for the first time.
Champ scientifique
- natural sciencesphysical scienceselectromagnetism and electronicsoptoelectronics
- engineering and technologynanotechnologynano-materialstwo-dimensional nanostructures
- natural sciencesphysical sciencesatomic physics
- natural sciencesphysical sciencesquantum physicsquantum optics
- natural sciencesphysical sciencesopticsnonlinear optics
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Régime de financement
RIA - Research and Innovation actionCoordinateur
75794 Paris
France