TY - JOUR
T1 - Highly selective two-color mid-wave and long-wave infrared detector hybrid based on Type-II superlattices
AU - Huang, Edward Kwei Wei
AU - Hoang, Minh Anh
AU - Chen, Guanxi
AU - Ramezani-Darvish, Shaban
AU - Haddadi, Abbas
AU - Razeghi, Manijeh
PY - 2012/11/15
Y1 - 2012/11/15
N2 - We report a two-color mid-wave infrared (MWIR) and long-wave infrared (LWIR) co-located detector with 3 μm active region thickness per channel that is highly selective and can perform under high operating temperatures for the MWIR band. Under back-side illumination, a temperature evolution study of the MWIR detector's electro-optical performance found the 300 K background-limit with 2π field-of-view to be achieved below operating temperatures of 160 K, at which the temperature's 50% cutoff wavelength was 5.2 μm. The measured current reached the system limit of 0.1 pA at 110 K for 30 μm pixel-sized diodes. At 77 K, where the LWIR channel operated with a 50% cutoff wavelength at 11.2 μm, an LWIR selectivity of ∼17% was achieved in the MWIR wave band between 3 and 4.7 μm, making the detector highly selective.
AB - We report a two-color mid-wave infrared (MWIR) and long-wave infrared (LWIR) co-located detector with 3 μm active region thickness per channel that is highly selective and can perform under high operating temperatures for the MWIR band. Under back-side illumination, a temperature evolution study of the MWIR detector's electro-optical performance found the 300 K background-limit with 2π field-of-view to be achieved below operating temperatures of 160 K, at which the temperature's 50% cutoff wavelength was 5.2 μm. The measured current reached the system limit of 0.1 pA at 110 K for 30 μm pixel-sized diodes. At 77 K, where the LWIR channel operated with a 50% cutoff wavelength at 11.2 μm, an LWIR selectivity of ∼17% was achieved in the MWIR wave band between 3 and 4.7 μm, making the detector highly selective.
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U2 - 10.1364/OL.37.004744
DO - 10.1364/OL.37.004744
M3 - Article
AN - SCOPUS:84869192745
VL - 37
SP - 4744
EP - 4746
JO - Optics Letters
JF - Optics Letters
SN - 0146-9592
IS - 22
ER -