Si:As IBC IR focal plane arrays for ground-based and space-based astronomy
Si:As IBC IR focal plane arrays for ground-based and space-based astronomy
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Si:As 用于地基和空基天文学的 IBC 红外焦平面阵列
DOI：
10.1117/12.317220
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
Roy R. Johnson
中科院分区：
文献类型：
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作者：
Arnold D. Estrada;G. Domingo;J. Garnett;A. Hoffman;N. Lum;P. Love;S. Solomon;J. Venzon;G. Chapman;K. Sparkman;C. Mccreight;M. Mckelvey;R. Mcmurray;J. Estrada;S. Zins;R. McHugh;Roy R. Johnson
Raytheon/SBRC 展示了适用于地基和空基中红外天文学应用的高质量 Si:As IBC 红外 FPA。这些阵列在 6 微米至 26 微米的波长范围内提供约 50% 的带内量子效率，并提供 2 微米至 28 微米的可用响应。对于高背景、基于地面的应用，读出输入电路是直接注入 (DI) FET，而对于低背景、基于空间的应用，则使用每个探测器的源极跟随器 (SFD)。 SFD 具有极低的噪声和功耗，并在非常小的单元中实现。与 SFD 相比，DI 输入电路提供更大的存储桶容量和更好的线性度，并采用 50 微米单元实现。 SBRC 的 Si:As IBC 探测器工艺可产生非常低的暗电流，并且我们的 Raytheon/MED 读出工艺经过优化，可在低温操作下实现非常低的红输出噪声。 SBRC 致力于取得更好的性能，以满足红外天文学界的未来需求。
Raytheon/SBRC has demonstrated high quality Si:As IBC IR FPAs for both ground-based and space-based Mid-IR astronomy applications. These arrays offer in-band quantum efficiencies of approximately 50 percent over a wavelength range from 6 micrometers to 26 micrometers and usable responses from 2 micrometers to 28 micrometers . For high background, ground-based applications the readout input circuit is a direct injection (DI) FET, while for low background, space-based applications a source follower per detector (SFD) is used. The SFD offers extremely low noise and power dissipation, and is implemented in a very small unit cell. The DI input circuit offers much larger bucket capacity and better linearity compared with the SFD, and is implemented in a 50 micrometers unit cell. SBRC's Si:As IBC detector process results in very low dark current sand our Raytheon/MED readout process is optimized for very low redout noise at low temperature operation. SBRC is committed to achieving still better performance to serve the future needs of the IR astronomy community.