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Showing 1 to 8 of 8 for “"Quantum dot infrared photodetectors"”.
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Dopant Incorporation in InAs/GaAs Quantum Dot Infrared Photodetectors
<p>Quantum Dot Infrared Photodetectors (QDIPs) are important alternatives to conventional infrared photodetectors with high potential to provide required detector performance, such as higher temperature operation and multispectral response, due to the 3-D quantum confinement of electrons, discrete …
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Indium Phosphide Based Indium Arsenide Quantum Dot Infrared Photodetectors
Based on the developed QD growth techniques, photoconductive InAs/InAlGaAs/InP QDIPs grown on InP by MBE technique were presented. These devices demonstrated responses to normal incident photoexcitations in the 5-18-mum range. The QDIP device based on bound-to-bound transitions shows a peak …
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Post-growth spectral tuning of InGaAs/GaAs quantum dot infrared photodetectors
Infrared photodetectors are essential in many industries and modern applications require devices with enhanced capabilities. High-performance detectors can be used for spectroscopy in medicine and environmental monitoring. Imaging scenarios include the identification of military targets and …
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Post-growth spectral tuning of InGaAs/GaAs quantum dot infrared photodetectors
Infrared photodetectors are essential in many industries and modern applications require devices with enhanced capabilities. High-performance detectors can be used for spectroscopy in medicine and environmental monitoring. Imaging scenarios include the identification of military targets and …
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Study of quantum dot and quantum well photodetectors
A study of quantum dots-in-well infrared photodetectors (QDIPs) yields results useful for the creation of a two-colour QDIP. Quantum dot infrared photodetectors (QDIPs) have been shown to be a key technology in mid and long wavelength infrared detection due to their potential for normal incidence …
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Physics of intraband quantum dot optoelectronic devices
… decades, semiconductor nanostructures, such as quantum wells, wires and dots, have been recognised as sources and detectors of radiation in the mid- and far-infrared region of the spectrum. Much of a success has been obtained with quantum well based intraband devices, such as quantum cascade …
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Growth and optimization of quantum dots-in-a-well infrared photodetectors
Quantum dot infrared photodetectors (QDIPs) have been shown to be a key technology in mid and long wavelength (3-14 μm) infrared detection due to their potential for normal incidence operation and low dark current. In our research group, we have been investigating infrared detectors based on …
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Longwave and bi-color type-II InAs/(In)GaSb superlattice infrared detectors
Infrared (IR) photodetectors are useful for a variety of military and civil applications such as target acquisition, medical diagnostics, pollution monitoring, to name just a few. Presently photonic IR detectors are based on interband transitions in low bandgap semiconductors such as mercury …