K-Space Multifunctional Acoustic Wave Devices

“该奖项是根据2009年美国复苏和再投资法案(公法111-5)资助的。”这项研究的目的是发展基本的科学和工程原理，以形成和推动k-空间多功能声波设备的发展，作为电信技术中具有高水平功能的潜在部件。这种方法的基础是使用声子晶体作为声波装置的一部分，除了更常见的频谱(时间)函数外，这种装置还可以产生变革性的k空间(实空间)功能。这些新的功能源于声子晶体的性质，如零角或负角折射以及产生锁相多光束。这项研究将结合理论计算方法和实验技术。通过实验演示样机的功能结构和器件，以达到研究目标。这项研究？S的智力优势在于设备的k空间功能。与传统的频谱函数相比，这些新函数将改变声波器件的领域，使其能够在紧凑的结构和器件中实现空间滤波、波束复用和逻辑运算，成为声波系统中实用的小型化和集成化组件。研究人员将在全球范围内进行这项研究，并将通过交流让研究生和本科生接触到国际合作，这是法国国家科学中心-亚利桑那大学国际联合实验室的一部分。调查人员将在开发基于可听音响的DIY技术套件方面的经验基础上，支持高中和科学博览会的外联活动，目的是在种族多元化的图森社区促进科学和工程教育和职业生涯。

"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.