@ARTICLE{Penello_Germano_M._Voltage-tunable_2023,
 author={Penello, Germano M. and Pereira, Pedro H. and Sousa, Vitor B. and Kawabata, Rudy M. S. and Pires, Mauricio P. and Souza, Patricia L.},
 volume={31},
 number={special issue},
 journal={Opto-Electronics Review},
 pages={e144559},
 howpublished={online},
 year={2023},
 publisher={Polish Academy of Sciences (under the auspices of the Committee on Electronics and Telecommunication) and Association of Polish Electrical Engineers in cooperation with Military University of Technology},
 abstract={The electronic quasi-bound state in the continuum concept is explored in an InGaAs/InAlAs heterostructure to create a voltage-tunable dual-colour quantum Bragg mirror detector. This heterostructure is based on one main quantum well embedded between two different superlattices. By bandgap engineering, each superlattice gives rise to quasi-bound states in the continuum with a preferential direction for electron extraction. Due to these states, the photovoltaic photocurrent presents a dual-colour response, one in a positive direction at 340 meV (3.6 µm), and one in a negative direction at 430 meV (2.9 µm). The simultaneous dual-colour detection can be switched to a single-colour detection (340 meV or 430 meV) by applying a bias voltage. At 77 K, the specific detectivity for simultaneous dual-colour is 2.5·108 Jones, while the single-colour detectivities are 2.6·109 Jones at +2.0 V and 7.7·108 Jones at −1.6 V for 340 meV and 430 meV, respectively.},
 type={Article},
 title={Voltage-tunable dual-colour quantum Bragg mirror detector (QBMD)},
 URL={http://journals.pan.pl/Content/126142/PDF/OPELRE_2023_71_Special_Issue_H_J_Lee.pdf},
 doi={10.24425/opelre.2023.144559},
}