CE09 - Nanomatériaux et nanotechnologies pour les produits du futur

AlInGaAs quaternaries for emission and detection in the MIR – LIGNEDEMIR

Submission summary

The main goal of the LIGNEDEMIR project is to develop InAlGaAs quaternaries lattice-matched on InP with monolayer control of composition and interface abruptness using MOCVD. These quaternaries give an added degree of freedom in the design of intersubband devices based on the InAlAs/InGaAs/InP material system. More specifically, the quaternaries will replace InAlAs barriers, enabling on to design bound-to-continuum optical transistions centered at 5µm and enabling the LIGNEDEMIR consortium to propose two key missing components: rapid and sensitive QWIPs and modulators based on Schottky or Stark-shift designs. These two components along best-in-class QCLs fabricated on InP will lay the foundation for a full-fledged mid-infrared photonic integrated platform with applications in lab-on-chip chemical and biological spectroscopy. To achieve these ambitious objectives, the LIGNEDEMIR project will tightly interweave numerical simulations, material growth and characterization and device processing and characterization. Specifically, advanced characterizations using scanning electron transmission microscopy will be applied to all samples fabricated in the project, providing precise information on the concentration and strain at atomic level. This wealth of data will be used to refine numerical models used to simulate the band structure and charge transport in the QWIPs and modulators. All data from simulations will be cross-checked against measurements with exhaustive device characterizations. Though the project specifically focuses on MOCVD-grown InAlGaAs alloys lattice-matched on InP, all findings of the project will be useful for other material systems and growth techniques.

Project coordination

Konstantinos Pantzas (Centre de Nanosciences et de Nanotechnologies)

The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.


C2N Centre de Nanosciences et de Nanotechnologies
LPA Laboratoire Pierre Aigrain

Help of the ANR 506,479 euros
Beginning and duration of the scientific project: January 2019 - 42 Months

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