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A novel AlGaAs/GaAs triple quantum well (QW) photodetector at 5-$\mu \text{m}$ wavelength has been proposed. The photodetector is designed with a double-resonance condition to achieve short tunneling time and large electron escape probability. The interface optical phonon modes and the phonon-assisted electron transition rates have been calculated. The electron escape probability is as high as 0...
A reduced signal-to-noise reduced photodetector has been designed using single-and double-quantum well structures as well as phonon assisted transitions. To increase electron carriers, delta-doping is used in the first single well. In this contribution, the energy levels of the single-well-double-well structure are prescribed by determining the energy spectrum for the interface phonon potentials and...
Herein, we consider examine the possibility of photodetectors with reduced signal-to-noise based on a three quantum well structure with one single well and one double well. This structure facilitates photon detection through the following sequence of events: photon absorption, phonon emission, and then photon absorb of a photon having the same wavelength as the first one. Even though this design two...
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