Exploration of THz CMOS for Imaging Applications

THz CMOS成像应用的探索. Niknejad加州大学伯克利分校本研究的目的是展示功能太赫兹源和探测器利用深度缩放的互补金属氧化物半导体（CMOS）技术的成像应用。 该方法是利用CMOS的强度和低成本来实现光源和探测器的阵列，以提高成像系统的灵敏度。 智力优势：随着CMOS技术已经扩展到纳米范围，在更高的亚毫米波/太赫兹频率下的操作变得可能。 这项研究将展示关键的构建模块，以实现低成本的CMOS成像系统。 使用基于尖脉冲的成像系统，可以使用匹配滤波器检测算法捕获从微波到太赫兹的广泛频率范围。更广泛的影响：太赫兹频谱具有大量的科学、工程和医疗应用。 许多有机分子的化学特征也发生在太赫兹波段，这使得人们可以使用太赫兹光谱学，在研究和安全方面有应用。 考虑到机场和人口稠密的城市中心的安全威胁，开发太赫兹技术至关重要。 太赫兹成像允许人们看穿物体，从而探测组织内部。 虽然太赫兹探测已被用于医学成像和癌症检测，但今天的系统价格昂贵，成本从数十万美元到数百万美元不等。 太赫兹电子学研究需要在设备物理，电路设计和建模，光学多学科背景。 因此，研究生和本科生将获得多样化和多学科的教育。 将积极招募本科生，特别是妇女和代表性不足的少数民族，参加该项目的研究和教育部分。

Exploration of THz CMOS for Imaging ApplicationsAli M. NiknejadUniversity of California, BerkeleyThe objective of this research is to demonstrate functional THz sources and detectors utilizing deeply scaled complementary metal oxide semiconductor (CMOS) technology for imaging applications. The approach is to exploit the strength and low cost of CMOS to realize arrays of sources and detectors to improve the sensitivity of the imaging system. Intellectual Merit: As CMOS technology has scaled to the nanometer regime, operation at higher sub-mm-wave/THz frequencies is becoming possible. This research will demonstrate key building blocks to enable a low-cost CMOS-based imaging system. Using a sharp pulse-based imaging system, a broad range of frequencies from microwave to THz can be captured using matched filter detection algorithms.Broader Impact: The THz spectrum has a host of science, engineering, and medical applications. The chemical signature of many organic molecules also occurs in the THz band, which allows one to use THz spectroscopy, with applications in research and security. Given security threats at airports and densely populated urban centers, it's vital to exploit THz technology. THz imaging allows one to see through objects, and thus probe inside tissue. While THz detection has been used in medical imaging and cancer detection, today's systems are expensive, costing from hundreds of thousands to millions of dollars. THz electronics research requires a multidisciplinary background in device physics, circuit design and modeling, and optics. Thus graduate and undergraduate students will be acquiring a diverse and multi-disciplinary education. Undergraduate students, especially women and underrepresented minorities, will be actively recruited into the research and education components of this project.