K-Space Multifunctional Acoustic Wave Devices

“这项研究的目标是发展基本的科学和工程原理，这些原理将形成和推动k空间多功能声波设备的发展，作为具有高功能的电信技术的潜在组件。”该方法基于使用声子晶体作为声波器件的一部分，除了更常见的频谱（时间）函数外，还可以产生变换的k空间（实空间）功能。这些新功能源于声子晶体的特性，如零角或负角折射以及锁相多光束的产生。本研究将结合理论计算方法和实验技术。研究目标将通过演示实验原型功能结构和设备来实现。这项研究?S的智力价值在于设备的k空间功能。与传统的频谱功能相比，这些新功能将通过在紧凑结构和设备中实现空间滤波、波束复用和逻辑运算，从而改变声波设备领域，使其成为声波系统中实用的小型化和集成组件。研究人员将在全球范围内进行研究，并将通过国家科学研究中心（法国）-亚利桑那大学国际联合实验室的一部分，使研究生和本科生接触到国际合作。调查人员将利用自己动手技术套件的开发经验，支持高中和科学博览会的推广活动，目的是促进图森种族多样化社区的科学和工程教育和职业发展。

"This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5)"The objective of this research is to develop the fundamental scientific and engineering principles that will form and drive the development of k-space multifunctional acoustic wave devices as potential components in telecommunication technology with high level functionalities. The approach is based on the use of phononic crystals as parts of acoustic wave devices that can produce transformative k-space (real space) functionalities in addition to the more common spectral (temporal) functions. These novel functions arise from properties of phononic crystals such as zero or negative angle refraction as well as generation of phase locked multiple beams. This research will combine theoretical-computational methodologies and experimental techniques. The research objectives will be met by demonstrating experimentally prototype functional structures and devices. This research?s intellectual merit resides in the k-space functionality of the devices. In contrast to traditional spectral functions these new functions will transform the field of acoustic wave devices by enabling spatial filtering, beam multiplexing and logic operations in compact structures and devices as practical miniaturized and integrated components in acoustic wave systems. The investigators will conduct the research in a global context and will expose graduate and undergraduate students to international collaborations through exchange as part of a Centre National de La Recherche Scientifique (France)-University of Arizona International Associated Laboratory. The investigators will build on experience in the development of Do-It-Yourself technology kits on audible phononics to support outreach activities at high schools and science fairs with the aim of promoting science and engineering education and careers among the ethnically diverse Tucson community.