UNS: Deep Sub-wavelength Thermal Radiation Localization and Transport

首席研究员迈克尔·A·菲勒提出了一种新型材料，不仅可以捕获太阳辐射能量，还可以控制能量流动的方向。这项研究工作将实验和理论相结合，并将检验从中红外光中获取能量的假设。教育工作将包括(1)K-12和本科生STEM教育，重点是未被充分代表的少数民族；(2)佐治亚理工学院夏令营活动，题为“穿太阳”，亚特兰大地区的高中生通过制作个性化的阳光激活服装(即T恤等)，学习太阳能收集的知识，在拟议的项目中将得到加强。该方案旨在通过了解影响选择性掺杂硅纳米线质量因子的结构和合成参数以及探测相邻表面等离子体共振的近场耦合，来研究选择性掺杂硅纳米线中的中红外局域表面等离子体共振。它还试图展示在热辐射热点中增强的振动模式传感。通过实验和理论的耦合，PI将验证这样的假设，即中红外光可以像传统等离子体材料中的可见光/近红外光一样，通过掺杂硅谐振腔被限制。拟议的努力将发展气-液-固纳米线生长，通过精确控制谐振器几何形状、载流子密度和间距来设计极端光的局部化和传输，希望开发出超紧凑的热辐射波导、调制器和探测器。

#1510934Filler, Michael A.The principal investigator proposes a new type of material for not only capturing radiation energy such as that from the Sun but also manipulating the direction of the energy flow. The research effort combines experiment and theory, and will test the hypothesis for harvesting energy from mid-infrared light. The education effort will include (1) K-12 and undergraduate STEM education, with an emphasis on underrepresented minorities and (2) Georgia Tech summer camp activity entitled "Wearing the Sun," where Atlanta area high school students learn about solar energy harvesting by creating personalized, sunlight-activated clothing (i.e., T-shirts, etc.), will be enhanced during the proposed project. The proposal aims to investigate the mid-infrared localized surface plasmon resonances (LSPRs) supported in selectively doped Si nanowires by understanding the structural and synthetic parameters that influence LSPR quality factor and probing the near-field coupling of neighboring LSPRs. It also seeks to demonstrate enhanced vibrational mode sensing in thermal radiation hot spots. By coupling experiment and theory, the PI will test the hypothesis that mid-infrared light can be confined via doped-Si resonators to the same extent as visible/near-infrared light in conventional plasmonic materials. The proposed efforts will develop vapor-liquid-solid nanowire growth to engineer extreme light localization and transport via precise control of resonator geometry, carrier density, and spacing, hoping to develop ultra-compact thermal radiation waveguides, modulators, and detectors.