Mercury Cadmium Telluride/Cadmium Telluride Distributed Bragg Reflectors

Mercury Cadmium Telluride/Cadmium Telluride Distributed Bragg Reflectors

A HgCdTe/CdTe system is investigated for use in distributed Bragg reflectors. The modelled performance is described, and compared to an as-grown structure. As-grown 15 layer structures with arithmetically varying layer thickness are also annealed at 250°C and performance re-evaluated at 2, 7 and 24...

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Hauptverfasser: Wehner, J.G.A., Sewell, R., Antoszewski, J., Musca, C.A., Dell, J.M., Faraone, L.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Annealing
Cadmium compounds
Detectors
Distributed Bragg reflectors
Mirrors
Noise reduction
Optical imaging
Resonance
Signal to noise ratio
Temperature
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Zusammenfassung:A HgCdTe/CdTe system is investigated for use in distributed Bragg reflectors. The modelled performance is described, and compared to an as-grown structure. As-grown 15 layer structures with arithmetically varying layer thickness are also annealed at 250°C and performance re-evaluated at 2, 7 and 24 hours anneal times. There is some shifting of the absorption edge after annealing , and some degradation in reflectivity, but the mirror is still functioning
DOI:10.1109/COMMAD.2004.1577523