Reply to ‘‘Comment on ‘High‐detectivity GaAs quantum‐well infrared detectors with peak responsivity at 8.2 μm’ ’’
نویسندگان
چکیده
منابع مشابه
Enhancing the Responsivity of Uncooled Infrared Detectors Using Plasmonics for High-Performance Infrared Spectroscopy
A lead zirconate titanate (PZT;Pb(Zr0.52Ti0.48)O₃) layer embedded infrared (IR) detector decorated with wavelength-selective plasmonic crystals has been investigated for high-performance non-dispersive infrared (NDIR) spectroscopy. A plasmonic IR detector with an enhanced IR absorption band has been designed based on numerical simulations, fabricated by conventional microfabrication techniques,...
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The recent development of p-GaAs homojunction interfacial workfunction internal photoemission (HIWIP) far-infrared (\40 mm) detectors is briefly reviewed. The emphasis is on the detector performance, which includes responsivity, quantum efficiency, bias effects, cut-off wavelength, uniformity, noise, and negative capacitance characteristics. Promising results indicate that p-GaAs HIWIP detector...
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Design, modeling, and optimization principles for GaAs/AlGaAs heterojunction interfacial workfunction internal photoemission (HEIWIP) infrared detectors for a broad spectral region are presented. Both n-type and p-type detectors with a single emitter or multiemitters, grown on doped and undoped substrates are considered. It is shown that the absorption, and therefore responsivity, can be increa...
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A molecular beam epitaxy grown wavelength tunable GaAs p-i homojunction interfacial work-function internal photoemission far-infrared detector is developed. The multilayer (p-ip-i. . . ! detector structures consist of 2, 5, and 10 emitter layers. Experimental results are explained in terms of the number of emitter layers and the doping concentrations of the emitter layer. A detector with 10 mul...
متن کاملHigh-responsivity mid-infrared graphene detectors with antenna-enhanced photocarrier generation and collection.
Graphene is an attractive photoconductive material for optical detection due to its broad absorption spectrum and ultrashort response time. However, it remains a great challenge to achieve high responsivity in graphene detectors because of graphene's weak optical absorption (only 2.3% in the monolayer graphene sheet) and short photocarrier lifetime (<1 ps). Here we show that metallic antenna st...
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ژورنال
عنوان ژورنال: Journal of Applied Physics
سال: 1991
ISSN: 0021-8979,1089-7550
DOI: 10.1063/1.348427