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- W2062955323 abstract "Photon counting imaging applications requires low noise from both detector and readout integrated circuit (ROIC) arrays. In order to retain the photon-counting-level sensitivity, a long integration time has to be employed and the dark current has to be minimized. It is well known that the PIN dark current is sensitive to temperature and a dark current density of 0.5 nA/cm<sup>2</sup> was demonstrated at 7 °C previously. In order to restrain the size, weight, and power consumption (SWaP) of cameras for persistent large-area surveillance on small platforms, it is critical to develop large format PIN arrays with small pitch and low dark current density at higher operation temperatures. Recently Spectrolab has grown, fabricated and tested 1024x1280 InGaAs PIN arrays with 12.5 μm pitch and achieved 0.7 nA/cm<sup>2</sup> dark current density at 15 °C. Based on our previous low-dark-current PIN designs, the improvements were focused on 1) the epitaxial material design and growth control; and 2) PIN device structure to minimize the perimeter leakage current and junction diffusion current. We will present characterization data and analyses that illustrate the contribution of various dark current mechanisms." @default.
- W2062955323 created "2016-06-24" @default.
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- W2062955323 date "2014-06-24" @default.
- W2062955323 modified "2023-10-06" @default.
- W2062955323 title "Low-dark current 1024×1280 InGaAs PIN arrays" @default.
- W2062955323 cites W2990391527 @default.
- W2062955323 doi "https://doi.org/10.1117/12.2053999" @default.
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