Optimal structure for resonant THz detection of plasmons-polaritons in the 2D quantum wells

We investigate terahertz plasmon-polariton (PP) resonances for hetero-structures (AlGaN/GaN, SiGe/Si/SiGe, AlGaAs/GaAs and InAlN/GaN) with grating coupler in order to find the optimal structure. We show a modeling work devoted to a parametric study (influence of geometry, temperature...) that the re...

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Bibliographic Details
Published in:2012 7th European Microwave Integrated Circuit Conference 2012-12, Vol.109 (4), p.80-83
Main Authors: Cao, L., Grimault-Jacquin, A.-S., Aniel, F., Poisson, M. -A., Delage, S., Sagnes, I., Le Gratiet, L.
Format: Article
Language:English
Subjects:
Absorption
Aluminum gallium nitride
Bolometer
infrared, submillimeter wave, microwave and radiowave receivers and detectors
Characterization and Evaluation of Materials
Condensed Matter Physics
Exact sciences and technology
Gallium nitride
Gratings
Infrared, submillimeter wave, microwave and radiowave instruments, equipment and techniques
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Machines
Manufacturing
Nanotechnology
Optical and Electronic Materials
Physics
Physics and Astronomy
Plasma temperature
plasmon-polariton
Processes
Silicon germanium
Surfaces and Interfaces
Temperature measurement
Terahertz detctor
Thin Films
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Summary:We investigate terahertz plasmon-polariton (PP) resonances for hetero-structures (AlGaN/GaN, SiGe/Si/SiGe, AlGaAs/GaAs and InAlN/GaN) with grating coupler in order to find the optimal structure. We show a modeling work devoted to a parametric study (influence of geometry, temperature...) that the resonances are tunable in frequency allowing a control of the terahertz detection. The modeling shows that AlGaN/GaN and InAlN/GaN heterostructures present the highest PP resonances at 300K. Then we compare modeling with room temperature and cryogenic temperature FTIR measurements on group III-N heterostructures which are indeed the most promising.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-012-7371-y