Collaborative Research: Anomalous Transport and Wavefront Shaping in Complex Photonic Media

合作研究：复杂光子介质中的反常传输和波前整形

• 批准号: 1205307
• 负责人: Hui Cao
• 金额: $ 36万
• 依托单位: Yale University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-06-15 至 2016-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1205307&HistoricalAwards=false
• 关键词: Collaborative; Research; Anomalous; Transport; Wavefront

****Technical Abstract****Compared to electronic systems, the robustness of coherence effects for photons at room temperature highlights the suitability of optical systems for fundamental studies of mesoscopic wave transport and also points to practical applications. This award supports a collaborative research program between an experimental group and a theoretical group to conduct systematic experimental and theoretical investigations on mesoscopic transport of light in aperiodic dielectric structures, with the goal of acquiring fundamental understanding of the effects of structural correlations on multiple scattering and localization in complex photonic systems that lie in-between random and periodic structures. Complex structural correlations in the aperiodic systems are expected to break the limitations imposed by the universal optimal transmission on fully random systems, thus providing additional degrees of freedom for control of mesoscopic transport via wave front shaping. The non-universality of wave transport will be exploited to achieve unprecedented control of light propagation via wave front shaping, including enhancement of light transmission, steering of output beams, and selective delivery of optical energy. The collaborative experimental-theoretical program will train graduate and undergraduate students to conduct interdisciplinary research across the evolving boundaries of multiple fields, including condensed matter physics, optics of complex media, nanotechnology, and computational physics. The cutting-edge research will be incorporated in the curriculum at both participating institutions.****Non-Technical Abstract****Rapid advances in nanotechnology have enabled the fabrication of micro- and nano-photonic structures with high degree of precision. Joined experimental and theoretical effort aims to uncover unusual optical properties of nano-structures that are neither completely disordered nor perfectly ordered. Instead, the so-called deterministic aperiodic nano-structures are defined by the iteration of simple mathematical rules. These artificial photonic materials span the entire spectrum in a hierarchy of complexity all the way from random to periodic structures. Because of their structural distinction and unusual physical properties, the aperiodic systems have been called the third form of solid matter. The project aims to design and fabricate artificial photonic nano-materials with prescribed transport properties. Because the structures are known a priori, it will be possible to obtain predictable and reproducible transport behaviors by controlling the incident light. This control is expected to lead to enhancement of light transmission, steering of output beams, and selective delivery of optical energy to targeted area. The outcome of this research may have a wide range of applications from biomedical imaging and photodynamic therapy, to laser trapping and micro-manipulation. The experimental-theoretical program will train students in interdisciplinary research across the evolving boundaries of multiple fields, including condensed matter physics, nanotechnology, and computational physics. The cutting-edge research will be incorporated in the curriculum at both institutions.

****技术摘要****与电子系统相比，光子在室温下的相干效应的鲁棒性突出了光学系统在介观波输运基础研究中的适用性，也指出了实际应用。该奖项支持一个实验小组和理论小组之间的合作研究项目，对光在非周期介质结构中的介观输运进行系统的实验和理论研究，目的是获得结构相关性对随机和周期结构之间复杂光子系统中多重散射和局部化的影响的基本理解。非周期系统中的复杂结构相关性有望打破全随机系统普遍最优传输的限制，从而为通过波前整形控制介观输运提供额外的自由度。将利用波输运的非普适性，通过波前整形实现对光传播的前所未有的控制，包括增强光传输、控制输出光束和选择性地传递光能。这个实验-理论合作项目将培养研究生和本科生在多个领域进行跨学科研究，包括凝聚态物理、复杂介质光学、纳米技术和计算物理。前沿研究将被纳入两个参与机构的课程。****非技术摘要****纳米技术的快速发展使得高精度的微纳米光子结构的制造成为可能。结合实验和理论的努力，旨在揭示纳米结构的不寻常的光学性质，既不是完全无序的，也不是完美有序的。相反，所谓的确定性非周期纳米结构是通过简单数学规则的迭代来定义的。这些人造光子材料在复杂的层次结构中跨越了整个光谱，从随机结构到周期性结构。由于其独特的结构和不同寻常的物理性质，非周期体系被称为固体物质的第三种形式。本项目旨在设计和制造具有规定输运特性的人工光子纳米材料。因为结构是已知的先验，它将有可能通过控制入射光获得可预测和可重复的输运行为。这种控制有望增强光传输，控制输出光束，并选择性地将光能输送到目标区域。本研究结果可能具有广泛的应用，从生物医学成像和光动力治疗，到激光捕获和微操作。实验-理论课程将培养学生跨越多个领域不断发展的跨学科研究，包括凝聚态物理、纳米技术和计算物理。这些前沿研究将被纳入两所院校的课程。