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The paper reports on the long-wave infrared HgCdTe detector for short response time operating for unbiased and room temperature condition. The response time was calculated at the level of ∼ 220–520 ps for zero bias condition. It was shown that depending on architecture extra series resistance < 20 Ω related to the processing allows to reach response time within the range ∼ 220 ps. The highest detectivity...
High frequency response is an important capability of infrared detectors in many applications. High-temperature long wavelength infrared HgCdTe heterostructure photodiodes exhibit sub-nanosecond time constants while operating under reverse bias. However, the noise, as well as the high current requirements are severe obstacles to their widespread applications. Thus, the present efforts are focused...
Several strategies have been implemented to improve the performance of infrared single pixel detectors at higher operating temperature condition. The most efficient and effective in HgCdTe technology are: non-equilibrium architectures and currently an idea of the barrier detector to include unipolar and complementary structures. Valence band offset between active layer and barrier impeding the minority...
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