Abstract: Large-format, very-long-wavelength infrared (VLWIR) hybrid focal plane arrays (HFPAs) based on doped-silicon blocked-impurity-band (BIB) detectors have been developed and demonstrated for a variety of astronomy applications. An HFPA consists of a BIB detector array interfaced via indium column interconnects to a matching cryogenic signal processor/multiplexer. Arsenic-doped silicon (Si:As) BIB detector arrays with useful photon response out to nearly 30 $mu@m are the most fully developed embodiment of this technology. HFPAs with Si:As BIB arrays have been optimized for low, moderate, and high infrared backgrounds in 128 $MUL 128-pixel formats, and a high-flux 256 $MUL 256-pixel version is under development. For high-flux applications, both the detector array and multiplexer are optimized to handle incident flux densities $GRT 10$+16$/ photons cm$+$MIN@2$/s$+$MIN@1$/, providing high spatial uniformity, high pixel operability, and background-limited performance down to low frequencies ($LS 10 Hz). Antimony-doped silicon (Si:Sb) arrays and 128 $MUL 128-pixel Si:Sb HFPAs having response to wavelengths $GRT 40 $mu@m have also been demonstrated, primarily for use at low and moderate backgrounds. BIB technology offers producible, low-cost, high-performance focal planes for astronomy in the VLWIR. !9
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机译：摘要：已开发出基于掺杂硅阻挡杂质带（BIB）探测器的大幅面超长波长红外（VLWIR）混合焦平面阵列（HFPA），并已在多种天文学应用中得到了证明。 HFPA由一个BIB检测器阵列组成，该检测器阵列通过铟柱互连接口连接到匹配的低温信号处理器/多路复用器。该技术最完善的实施方案是掺砷的硅（Si：As）BIB检测器阵列，其有用的光子响应可达近30μm。带有Si：As BIB阵列的HFPA已针对128，MUL 128像素格式的低，中，高红外背景进行了优化，目前正在开发高通量256，MUL 256像素的版本。对于高通量应用，探测器阵列和多路复用器均进行了优化，以处理入射通量密度$ GRT 10 $ + 16 $ /光子cm $ + $ MIN @ 2 $ / s $ + $ MIN @ 1 $ /，提供了高空间均匀性，高像素可操作性以及低至低频（$ LS 10 Hz）的背景限制性能。锑掺杂的硅（Si：Sb）阵列和对波长$ GRT 40 $ mu @ m有响应的128 $ MUL 128像素Si：Sb HFPA也已被证明，主要用于中低背景。 BIB技术为VLWIR中的天文学提供了可生产，低成本，高性能的焦平面。 ！9
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