"ELECTRON, OPTICAL, ACOUSTIC, SONAR AND RADIO WAVE CHARACTERIZATION OF ADVANCED MATERIALS/MATTER AND THEIR STRUCTURES"

“先进材料/物质及其结构的电子、光学、声学、声纳和无线电波表征”

• 批准号: 262604-2012
• 负责人: Herring, Rodney
• 金额: $ 1.89万
• 依托单位: University of Victoria
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=571276
• 关键词: ELECTRON; OPTICAL; ACOUSTIC; SONAR; RADIO

The objectives of the research are to construct new types of imaging devices and develop their associated imaging methods in order to make new measurements of the properties of matter. The imaging devices being constructed as based on holography and interferometry using the interference of electrons, photons, acoustic waves, sonar and radio waves. One imaging device and its associated methods, confocal holography (CH), were patented in 2009 and 2011. CH is applicable for the use of electrons, lasers, sonar, acoustic waves and radio waves. CH is unique as it enables obtaining a three-dimensional (3D) image of an object being viewed from one direction, i.e., no rotation of the object or imaging device is required. Using lasers, it measures the 3D temperature distribution of a heated fluid proving its concepts as a valid imaging and measurement method. Using acoustic beams, it is being developed to detect regions of healthy and diseased tissue in the human body, initially targeting the prostate for cancer. Using radio waves, CH is being investigated for measuring the Earth atmosphere's 3D temperature, pressure and composition, targeting climate change monitoring and enhanced knowledge of the atmosphere sciences. In the near future, electron-based CH will image and measure the 3D properties of a solid's atomic, electronic and quasiparticle (phonons, plasmons, excitons, etc) structures at the nanoscale and even sub-atomic scale using an ultra-high resolution scanning transmission electron holography microscope (STEHM) being constructed by this NSERC Discovery Grant applicant. Using sonar, a unique CH design exists but not yet implemented to continuously measure the ocean's temperature, pressure and composition from the ocean's surface to the seafloor with the depth limited by the back-reflection intensity. This sonar device will also target climate change monitoring and enhance our knowledge of the ocean sciences. Each of the objects being investigated by CH, i.e., quasiparticles, atoms, molecules, liquids, gases, the human body, the ocean and the Earth's atmosphere, are complex, challenging and require a good understanding for the intended measurements made possible by collaboration with experts in these respectively fields of study.

该研究的目标是构建新型成像设备并开发其相关的成像方法，以便对物质的特性进行新的测量。成像设备基于全息术和干涉测量法，利用电子、光子、声波、声纳和无线电波的干涉而构建。共焦全息术 (CH) 是一种成像设备及其相关方法，于 2009 年和 2011 年获得专利。CH 适用于电子、激光、声纳、声波和无线电波的使用。 CH 是独一无二的，因为它能够获得从一个方向观看的物体的三维 (3D) 图像，即不需要旋转物体或成像设备。它使用激光测量加热流体的 3D 温度分布，证明其概念是一种有效的成像和测量方法。它利用声束来检测人体内健康和患病组织的区域，最初的目标是前列腺癌。 CH 正在研究利用无线电波测量地球大气的 3D 温度、压力和成分，旨在监测气候变化并增强大气科学知识。在不久的将来，基于电子的 CH 将使用超高分辨率扫描在纳米级甚至亚原子级对固体原子、电子和准粒子（声子、等离子体、激子等）结构的 3D 属性进行成像和测量透射电子全息显微镜 (STEHM) 由这位 NSERC 发现补助金申请人建造。使用声纳，存在一种独特的 CH 设计，但尚未实施，可以连续测量从海洋表面到海底的海洋温度、压力和成分，深度受背反射强度限制。该声纳设备还将针对气候变化监测并增强我们对海洋科学的了解。 CH 正在研究的每个物体，即准粒子、原子、分子、液体、气体、人体、海洋和地球大气层，都是复杂且具有挑战性的，需要对通过与这些各自研究领域的专家。