Development of high-speed, patch-antenna intersubband photodetectors at 10.3μm

Q. Lin (1, 2, 3) , S Barbieri (2, 3) , M. Hakl (4, 2) , S. Pirotta (4, 2) , R. Colombelli (4, 5) , W. Wan (6) , H. Li (7) , J. Cao (7) , Jean-Francois Lampin (2, 3) , Emilien Peytavit (2, 3)

1 Université de Lille
2 IEMN - Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520
3 PHOTONIQUE THZ - IEMN - Photonique THz - IEMN
4 CNRS - Centre National de la Recherche Scientifique
5 C2N - Centre de Nanosciences et de Nanotechnologies [Marcoussis]
6 Key Laboratory of terahertz solid state technology
7 Key laboratory of terahertz solid state technology

We present our work on the development of highspeed, GaAs-AlGaAs multi-quantum wells photodetectors at 10.3μm, based on two-dimensional arrays of patch-antenna resonators. First, the results of FDTD simulations will be presented that allowed to optimize the patch array geometry and fabricate a first generation of detectors with microwave coplanar access. Next, we will report on our initial results from dc optical characterization, namely reflectivity and photocurrent measurements.

Mots clés: Temperature measurement; Photodetectors; Detectors; Wavelength measurement; Photoconductivity; Quantum cascade lasers; Resonators

Domaines: Optique / photonique

Q. Lin, S Barbieri, M. Hakl, S. Pirotta, R. Colombelli, et al.. Development of high-speed, patch-antenna intersubband photodetectors at 10.3μm. 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Sep 2019, Paris, France. pp.1-2, ⟨10.1109/IRMMW-THz.2019.8874176⟩. ⟨hal-03097342⟩