1978
DOI: 10.1109/t-ed.1978.19062
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Infrared focal planes in intrinsic semiconductors

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Cited by 76 publications
(16 citation statements)
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“…This limited their applicability in hybrid configurations with sili− con multiplexers. Differences in TEC between the readout and detector structure can lead to failure of the indium bonds after repeated thermal cycling from room temperature to the cryogenic temperature of operation [62]. Figure 17 shows dependence of the thermal expansion coefficient of PbTe, InSb, HgTe and Si on temperature.…”
Section: Post-war Activitymentioning
confidence: 99%
“…This limited their applicability in hybrid configurations with sili− con multiplexers. Differences in TEC between the readout and detector structure can lead to failure of the indium bonds after repeated thermal cycling from room temperature to the cryogenic temperature of operation [62]. Figure 17 shows dependence of the thermal expansion coefficient of PbTe, InSb, HgTe and Si on temperature.…”
Section: Post-war Activitymentioning
confidence: 99%
“…Digital imager architectures are dominated by in-pixel readout stages containing analog-integrator preamplification and a posterior sampler-and-hold. In the case of large IR staring-FPAs, straightforward input topologies like source follower per detector (SFD) [31][32][33][34][35], direct injection (DI) [36][37][38][39] and gate modulation input (GMI) [31,40] are still popular because of their compactness and reduced power consumption [19]. Other complex circuit techniques like buffered direct injection (BDI) [36,41] and capacitive transimpedance amplifier (CTIA) [42][43][44]39] offer higher performance by providing excellent bias control, high injection efficiency, linearity and lower noise figures.…”
Section: Readout Techniquesmentioning
confidence: 99%
“…For an ideal system, with increasing the voltage V G , when the injection efficiency h I nearly rea− ches unity, for the readout−integrated current we have I In »I ph , and the value of D*, limited by the photodiode current noise Q 3 , coincides with the theoretical limit of detectivity in BLIP operation (D BLIP * ). In the latter case, the characterristics of IR FPAs based on DI readout circuits can be evaluated using the generally accepted simplifications [2,3]. For multi−element IR FPAs, it is significant that the detectivity D* and the current I In at V G > 1.22 V are almost independent of V G .…”
Section: Inmentioning
confidence: 99%