Monolithic Resonant TeraHertz Detectors

单片谐振太赫兹探测器

• 批准号: EP/I017461/1
• 负责人: David Cumming
• 金额: $ 75.08万
• 依托单位: University of Glasgow
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2011
• 资助国家: 英国
• 起止时间: 2011 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FI017461%2F1
• 关键词: Monolithic; Resonant; TeraHertz; Detectors

Visible light is only a very small part of the whole electromagnetic spectrum. The radio spectrum is also very familiar to most people, but less well known is the range of wavelengths in between. In this project we are particularly interested in a part of the spectrum that has come to be known as the terahertz band, so called because the frequency is around 1 THz. Light in the terahertz band can pass through materials that are opaque to visible light, but yet, the wavelength is still small enough to resolve features smaller than 1 mm. Because of this terahertz has attracted a great deal of interest for applications where we need to see through materials, but also take good sharp pictures. Applications include medical and security imaging, particularly because terahertz is non-ionising so can be safely used with humans.Unfortunately terahertz technology suffers from some significant difficulties that requires research to overcome. Bright terahertz sources are difficult to make, so considerable effort is needed to improve what we have at the moment. Terahertz is energetically similar to ambient radiated heat, so sensors have to be both sensitive and highly descriminating. In a complete terhertz imaging system all aspects of the technology and its components are important in determining the overall performance. This project is therefore dedicated to improving sensor performance.There are a number of attributes that we would like for a good sensor. It should be small, consume little power, be very sensitive, and ideally, if it it to be used in an camera, fast enough to allow video rate imaging. We propose to use the optical properties of semiconducting materials and carefully designed metallic structures to capture terahertz radiation. We will demonstrate that these structures can be used to make an array of sensors, just as you would find in a normal camera, and that the sensors are sensitive and selective to terahertz. In the same way that mainstream photography has benefited from microelectronics to make digital cameras possible, we will also be able to make use of integrated circuit technology so that many sensors can be cheaply and efficiently put on to a single chip.Our project has attracted support from leading UK companies including Teraview and Selex-Galileo that have immediate routes to market for successful technology. Our aim is to complete the research that will demonstrate new technologies to the point where further investment will enable the creation of new products that can be used by scientists, clinicians and the security services in the not to distant future.

可见光只是整个电磁频谱的一小部分。无线电频谱对大多数人来说也非常熟悉，但彼此之间的波长范围鲜为人知。在这个项目中，我们对被称为Terahertz频段的部分频谱特别感兴趣，因此之所以称为频率约为1 THz。 Terahertz带中的光可以通过不透明的材料到可见光的材料，但是，波长仍然足够小，可以解决小于1毫米的特征。由于这种Terahertz，对于我们需要通过材料查看的应用，也吸引了很多兴趣，但也可以拍摄良好的照片。应用程序包括医疗和安全成像，尤其是因为Terahertz是非离世的，因此可以与人类安全地使用。明亮的Terahertz来源很难制作，因此需要大量精力来改善目前的目标。 Terahertz在能量上与环境辐射热相似，因此传感器必须既敏感又高度描述。在完整的Terhertz成像系统中，该技术及其组件的各个方面对于确定整体性能很重要。因此，该项目致力于提高传感器性能。我们想要一个良好的传感器想要的许多属性。它应该很小，消耗的功率很小，非常敏感，理想情况下，如果它用于相机中，则足够快，可以允许视频速率成像。我们建议使用半导体材料和精心设计的金属结构的光学特性来捕获泰赫兹辐射。我们将证明这些结构可用于制造一系列传感器，就像您在普通摄像机中发现的那样，传感器对Terahertz很敏感并且有选择性。就像主流摄影受益于微型摄影以使数码相机成为可能的方式一样，我们还将能够利用集成电路技术，以便许多传感器可以便宜，有效地投入到一个单一的芯片上。我们的目的是完成研究，该研究将展示新技术，以至于进一步投资将使科学家，临床医生和安全服务在不远的未来中创建新产品。

项目成果

Terahertz imagers based on metamaterial structures monolithically integrated in standard CMOS technologies

基于单片集成在标准 CMOS 技术中的超材料结构的太赫兹成像器

• DOI: 10.1117/12.2304335
• 发表时间: 2018
• 作者: Gouveia L

Terahertz Metamaterial Absorbers Implemented in CMOS Technology for Imaging Applications: Scaling to Large Format Focal Plane Arrays

• DOI: 10.1109/jstqe.2016.2630307
• 发表时间: 2017-07-01
• 期刊: IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
• 影响因子: 4.9
• 作者: Carranza, Ivonne Escorcia;Grant, James P.;Cumming, David
• 通讯作者: Cumming, David

Metamaterial-Based Terahertz Imaging

• DOI: 10.1109/tthz.2015.2463673
• 发表时间: 2015-11-01
• 期刊: IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY
• 影响因子: 3.2
• 作者: Carranza, Ivonne Escorcia;Grant, James;Cumming, David R. S.
• 通讯作者: Cumming, David R. S.

A monolithic resonant terahertz sensor element comprising a metamaterial absorber and micro-bolometer

• DOI: 10.1002/lpor.201300087
• 发表时间: 2013-11-01
• 期刊: LASER & PHOTONICS REVIEWS
• 影响因子: 11
• 作者: Grant, James;Escorcia-Carranza, Ivonne;Cumming, David R. S.
• 通讯作者: Cumming, David R. S.

Terahertz imaging using a monolithic metamaterial based detector

• DOI: 10.1109/irmmw-thz.2014.6956016
• 发表时间: 2014-09
• 期刊: 2014 39th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz)
• 作者: I. E. Carranza;J. Grant;D. Cumming