SGER: Frequency tunable terahertz resonator devices

abstracteccs - 0824920 e。本提案的重点是由手性纳米复合材料（CNM）制成的新型频率可调太赫兹谐振器结构的设计、制造和概念验证。纳米级排列和杂交创造了具有全新性能的人造材料（纳米结构导电线圈）。应用领域包括纳米光子学、纳米机电学、纳米磁学、纳米电磁学和纳米传感器等。该提案的目标是展示频率可调的CNM太赫兹（THz）谐振器器件结构的可行性，该器件使用导电纳米线圈和肖特基接触电容器，该电容器由线圈和半导体衬底之间的界面耗尽层产生。目标将通过以下步骤实现：铝雕刻薄膜与p型掺杂硅衬底界面耗尽层特性的研究及外加电场对耗尽层厚度的影响。2. 聚合物聚乙烯醇（PVP）填充交联于雕刻薄膜及混合谐振器器件结构中谐振频率调谐的演示。3. 在p型硅衬底上用图案衬底镀铝纳米线圈以减小电容器面积。4. 利用太赫兹椭圆偏振技术首次展示了由减小电容面积的手性纳米结构杂化材料制成的可调谐太赫兹谐振器。频率调谐将通过对耗尽层施加外部电偏置来获得。该研究计划将基于手性纳米结构混合材料的革命性新电磁材料的进展，为新型混合电磁器件的设计和性能带来突破。有源太赫兹谐振器器件结构可以被集成在太赫兹源和探测器中，从而关闭电流间隙电子器件技术。太赫兹设备在医学、遥感、成像和卫星通信方面的应用非常有前途，它们也可能对国土安全任务有用。尽管如此，太赫兹频谱区域是最未充分利用的频率范围之一。提出的有源太赫兹谐振器器件结构将有助于提高太赫兹技术，并对社会产生直接影响。

AbstractECCS-0824920E. Schubert, University of Nebraska-LincolnObjectiveThis proposal focuses on design, fabrication, and proof-of-concept for novel frequency-tunable terahertz resonator structures made from chiral nanocomposit materials (CNM). Nanoscale arrangement and hybridization creates artificial materials (nanostructure electrically conductive coils) with entirely new properties. Applications are envisioned for areas such as nano-photonics, nano-electromechanics, nano-magnetics, nano-electromagnetics, and nano-sensors, for example. The goal of the proposal is to show the feasibility of a frequency-tunable CNM terahertz (THz) resonator device structure using conductive nanocoils and Schottky contact capacitors produced from the depletion layer at the interface between the coil and semiconductor substrate. The goal will be reached in the following steps: 1. Investigation of depletion layer properties at the interface between aluminum sculptured thin films and p-type doped silicon substrates and manipulation of the depletion layer thickness by an external applied electric field. 2. Filling and cross-linking the polymer polyvinyl phenol (PVP) into the sculptured thin film and demonstration of resonance frequency tuning in hybrid resonator device structure. 3. Reduction of the capacitor area by using patterned substrates for glancing angle deposition of aluminum nanocoils on p-type silicon substrates. 4. First demonstration of tunable terahertz resonator devices from chiral nanostructure hybrid materials with reduced capacitor area by means of terahertz ellipsometry. The frequency tuning will be obtained by applying an external electrical bias to the depletion layer. Intellectual Merit The research plan will lead to breakthroughs for the design and performance of new hybrid electromagnetic devices based on advances for revolutionary new electromagnetic materials from chiral nanostructure hybrids. The active THz resonator device structures may be incorporated in THz sources and detectors and close thereby an current gap electronic device technology. Broader impact Terahertz devices are very promising for applications in medicine, remote sensing, imaging, and satellite communications, and they might be also useful for homeland security tasks. Nonetheless the terahertz spectral region is one of the most under-utilized frequency ranges. The proposed active THz resonator device structures will contribute to enhance THz technology with an immediate influence on the society.