Terahertz acoustic phase imaging

太赫兹声相位成像

• 批准号: 79295496
• 负责人: Professor Dr. Roland Kersting
• 金额: --
• 依托单位: Lehrstuhl für Photonik und Optoelektronik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2008
• 资助国家: 德国
• 起止时间: 2007-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/79295496?language=en
• 关键词: Terahertz; acoustic; phase; imaging

Recently, our group at the University of Munich developed a novel technique for detecting concealed objects with terahertz (THz) radiation. In our approach, we use THz radiation for detecting the acoustic phase of the objects while they perform a minute vibration. The technique is sensitive to virtually all materials, metals as well as dielectrics, and even organic materials. Fundamental parameters, such as the required vibration amplitude or the exposure to THz radiation are many orders below those values recommended for the exposure to humans, which makes the technique extremely attractive for applications in personnel screening. Future research should deliver: i) A demonstration on objects, which are comparable to real life situations and ii) the characterization of the technique with respect to applications. However, the Munich team has neither the equipment for scanning objects of reasonable size nor the experience with security related issues. The goal of the proposed collaboration between the groups of X.-C. Zhang at Rensselaer and of R. Kersting at Munich is to perform the first steps towards application oriented research. The intention of the three week travel to Rensselaer is to find out about the experimental capabilities at Rensselaer and how the research goals can be met by distributing the different challenges between both teams. Based on this outcome a joint proposal will be developed.

最近，我们在慕尼黑大学的研究小组开发了一种新技术，可以用太赫兹（THz）辐射探测隐藏的物体。在我们的方法中，我们使用太赫兹辐射来检测物体的声学相位，同时它们进行微小的振动。该技术对几乎所有材料都很敏感，包括金属和金属，甚至有机材料。基本参数，如所需的振动幅度或暴露于太赫兹辐射是许多订单低于那些建议的值暴露于人类，这使得该技术在人员筛选中的应用非常有吸引力。未来的研究应提供：一）实物演示，与真实的生活情况相当;二）技术应用的特点。然而，慕尼黑团队既没有扫描合理大小物体的设备，也没有处理安全相关问题的经验。X组之间拟议合作的目标。C. Zhang在Rensselaer和R.慕尼黑的Kersting是执行面向应用的研究的第一步。为期三周的伦斯勒之旅的目的是了解伦斯勒的实验能力，以及如何通过在两个团队之间分配不同的挑战来实现研究目标。根据这一结果，将制定一项联合提案。