TY - JOUR
T1 - Polarized front-illumination response in quantum dot infrared photodetectors
AU - Bahir, G.
AU - Finkman, E.
AU - Schacham, S.
AU - Brault, J.
AU - Gendry, M.
PY - 2002
Y1 - 2002
N2 - In this work we demonstrated multicolor quantum dot infrared photodetectors with normal incidence background limited performance (BLIP) at 70 K. The devices, which were studied in this work, were composed of self-assembled InAs dots grown by MBE on InAlAs barrier lattice matched to InP substrate. Normal incidence photocurrent spectra reveal several polarized and unpolarized peaks in the range 100-350 meV due to the intersubband transitions. The detector responsivity at normal incidence is similar to that obtained for polarization normal to the layers, and is comparable to that achieved in quantum well infrared photodetectors.
AB - In this work we demonstrated multicolor quantum dot infrared photodetectors with normal incidence background limited performance (BLIP) at 70 K. The devices, which were studied in this work, were composed of self-assembled InAs dots grown by MBE on InAlAs barrier lattice matched to InP substrate. Normal incidence photocurrent spectra reveal several polarized and unpolarized peaks in the range 100-350 meV due to the intersubband transitions. The detector responsivity at normal incidence is similar to that obtained for polarization normal to the layers, and is comparable to that achieved in quantum well infrared photodetectors.
UR - http://www.scopus.com/inward/record.url?scp=0037648969&partnerID=8YFLogxK
U2 - 10.1117/12.451328
DO - 10.1117/12.451328
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AN - SCOPUS:0037648969
SN - 0277-786X
VL - 4820
SP - 627
EP - 634
JO - Proceedings of SPIE - The International Society for Optical Engineering
JF - Proceedings of SPIE - The International Society for Optical Engineering
IS - 2
T2 - Infrared Technology and Applications XXVIII
Y2 - 7 July 2002 through 11 July 2002
ER -