Implementation of a multi-element detector consisting of an 8x8 network of patch-antenna-coupled TeraFETs for gas spectroscopy with THz-QCLs
Implementation of a multi-element detector consisting of an 8x8 network of patch-antenna-coupled TeraFETs for gas spectroscopy with THz-QCLs
复制标题
使用 THz-QCL 实现由贴片天线耦合 TeraFET 的 8x8 网络组成的多元素探测器，用于气体光谱分析
DOI：
10.1109/irmmw-thz57677.2023.10299121
复制
发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Holstein J
中科院分区：
文献类型：
--
作者：
Holstein J
单片集成天线耦合场效应晶体管 (TeraFET) 被称为灵敏探测器，可设计为在整个 THz 范围 (0.1-10 THz) 内正常工作。在这项工作中，我们提出了一种新的多元件太赫兹探测器设计。它采用采用商用 65 nm CMOS 工艺制造的单片集成贴片天线耦合 TeraFET。与每个 TeraFET 代表一个像素的传统探测器矩阵不同，这里整个 TeraFET 网络充当单个像素，将并行读出电路中所有元件的输出信号组合在一起。矩阵方法有两个优点：更大的有效探测器面积，这使得光束对准更容易，并且电阻显着降低至大约。 300 在工作偏置点，不仅可以降低探测器噪声，还可以增加可实现的调制带宽，从而提高动态过程测量的时间分辨率。我们展示了该探测器在 3.4 THz 频率下以量子级联激光器 (QCL) 作为辐射源的实验室甲醇蒸气气体光谱的适用性。
Monolithically integrated, antenna-coupled field-effect transistors (TeraFETs) are known as sensitive detectors, which can be designed to work properly over the entire THz range (0.1-10 THz). In this work, we present a new multi-element THz detector design. It employsmonolithically integrated patch-antenna-coupled TeraFETs fabricated in a commercial 65-nm CMOS process. In contrast to conventional detector matrices, where each TeraFET represents a pixel, here the entire TeraFET network serves as a single pixel, combining the output signals of all elements in a parallel read-out circuit. The matrix approach offers two advantages: A larger effective detector area, which makes beam alignment easier, and a significantly reduced electrical resistance down to approx. 300 at the working bias point, leading not only to a reduction in detector noise but also to an increase in achievable modulation bandwidth, which improves the time resolution of measurements of dynamical processes. We demonstrate applicability of the detector for laboratory methanol vapor gas spectroscopy at 3.4 THz with a quantum cascade laser (QCL) applied as a radiation source.
使用场效应晶体管阵列实时分析太赫兹量子级联激光信号
DOI：
--
发表时间：
2023
期刊：
International Conference on Infrared, Millimeter, and Terahertz Waves
影响因子：
--
作者：
N. North;J. Holstein;M. Horbury;H. Godden;L. Li;J. R. Freeman;E. Linfield;H. Roskos;A. Lisauskas;A. Valavanis
通讯作者：
A. Valavanis
影响因子：
4.9
作者：
Ikamas, Kestutis;Cibiraite, Dovile;Roskos, Hartmut G.
通讯作者：
Roskos, Hartmut G.