An LWIR QWIP FPA with sub-5mK NETD and large dynamic range

IF 3.1 3区物理与天体物理 Q2 INSTRUMENTS & INSTRUMENTATION

Infrared Physics & Technology Pub Date : 2024-11-21 DOI:10.1016/j.infrared.2024.105629

Hangyu Lu , Ning Li , Xiaohao Zhou , Zhifeng Li , Pingping Chen , Jintong Xu , Xiangyang Li , Wei Lu

引用次数: 0

Abstract

QWIP based on the GaAs/AlGaAs material system are commonly used to achieve LWIR FPA. This detector is constrained by the integration charge capacity of conventional integral-readout-reset mode CMOS readout integrated circuits. As a result, the technical specification for the temperature resolution of the infrared detectors, known as NETD, typically ranges from 20 mK to 30 mK. In this paper, we present a 320 × 256 LWIR QWIP FPA, which is formed by bonding quantum well detectors and a pixel-level DROIC. Notably, the NETD achieved by this detector is superior to 5 mK, with the DR exceeding 100 dB, and it operates effectively within a temperature range of 40 K to 80 K, demonstrating excellent adaptability to varying environmental temperatures.

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具有低于5mk NETD和大动态范围的LWIR QWIP FPA

基于GaAs/AlGaAs材料体系的QWIP是实现小波红外FPA的常用方法。该检测器受限于传统的积分读出-复位模式CMOS读出集成电路的积分电荷容量。因此，红外探测器的温度分辨率（NETD）的技术规格通常在20 mK到30 mK之间。在本文中，我们提出了一个320 × 256 LWIR QWIP FPA，它由量子阱探测器和像素级DROIC结合而成。值得注意的是，该探测器获得的NETD优于5 mK， DR超过100 dB，并且在40 K至80 K的温度范围内有效工作，对不同的环境温度具有出色的适应性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Infrared Physics & Technology 物理-光学

CiteScore

5.70

自引率

12.10%

发文量

400

审稿时长

67 days

期刊介绍： The Journal covers the entire field of infrared physics and technology: theory, experiment, application, devices and instrumentation. Infrared'' is defined as covering the near, mid and far infrared (terahertz) regions from 0.75um (750nm) to 1mm (300GHz.) Submissions in the 300GHz to 100GHz region may be accepted at the editors discretion if their content is relevant to shorter wavelengths. Submissions must be primarily concerned with and directly relevant to this spectral region. Its core topics can be summarized as the generation, propagation and detection, of infrared radiation; the associated optics, materials and devices; and its use in all fields of science, industry, engineering and medicine. Infrared techniques occur in many different fields, notably spectroscopy and interferometry; material characterization and processing; atmospheric physics, astronomy and space research. Scientific aspects include lasers, quantum optics, quantum electronics, image processing and semiconductor physics. Some important applications are medical diagnostics and treatment, industrial inspection and environmental monitoring.