权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Elements: Software: NSCI: A Quantum Electromagnetics Simulation Toolbox (QuEST) for Active Heterogeneous Media by Design

要素：软件：NSCI：用于主动异质介质设计的量子电磁仿真工具箱 (QuEST)

基本信息

批准号：
1835267
负责人：
Carlo Piermarocchi
金额：
$ 56.33万
依托单位：
Michigan State University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2018
资助国家：
美国
起止时间：
2018-09-15 至 2023-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1835267&HistoricalAwards=false
关键词：
Elements Software NSCI Quantum Electromagnetics

项目摘要

Designing novel optical materials with enhanced properties would impact many areas of science and technology, leading to new lasers, better components for photonics, and to a deeper understanding of how light interacts with matter. This project will develop software that simulates how light would propagate in yet to be made complex optical materials. The final product will be a software toolbox that computes the dynamics of each individual light emitter in the materials rather than calculating an average macroscopic field. This toolbox will permit the engineering and optimization of optical properties by combining heterogeneous components at the nanoscale. The software will be disseminated widely to enable scientists worldwide to conduct research on this area and will provide a blueprint for broader applications to magnetic materials and ultrasound acoustics. Two graduate students will be engaged in this research and will be trained in interdisciplinary topics encompassing fundamental physics, mathematics, materials science, and software engineering.Three innovative modules will be implemented and tested in the software toolbox: (i) A module based on Time Domain Accelerated Integrated Methods. These methods rely on the separation into near field and far field terms in the interaction between optically active centers and introduce a hierarchical structure that can be computationally exploited. This module will dramatically reduce computational costs, leading to simulations of realistic systems with millions of optical emitters. (ii) A stochastic optimization module that maximizes materials functionalities based on geometrical and compositional distribution of the emitters in the medium. This optimization module will simulate in parallel several virtual samples and will guide the computational effort towards optimal materials. (iii) A rationalized representation of electromagnetic field localization based on the novel mathematical concept of landscape functions, which effectively reduces the eigenvalue problem associated to localization into a static boundary condition problem. This computationally efficient approach provides approximated eigenvalues and quickly identifies the sub-regions of the system that support electromagnetic field localization.This project is supported by the Office of Advanced Cyberinfrastructure in the Directorate for Computer & Information Science & Engineering and the Division of Materials Research in the Directorate of Mathematical and Physical Sciences.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

设计具有增强性能的新型光学材料将影响许多科学和技术领域，从而产生新的激光器，更好的光子学组件，并更深入地了解光如何与物质相互作用。该项目将开发软件，模拟光如何在尚未制成的复杂光学材料中传播。最终产品将是一个软件工具箱，它计算材料中每个单独光发射器的动力学，而不是计算平均宏观场。这个工具箱将允许工程和优化的光学性能相结合的异质组件在纳米级。该软件将广泛传播，使世界各地的科学家能够在这一领域进行研究，并将为磁性材料和超声声学的更广泛应用提供蓝图。两名研究生将从事这项研究，并将在跨学科的主题，包括基础物理，数学，材料科学和软件工程的培训。三个创新的模块将在软件工具箱中实现和测试：（i）基于时域加速集成方法的模块。这些方法依赖于光学活性中心之间的相互作用中的近场和远场项的分离，并引入了可以计算利用的分层结构。该模块将大大降低计算成本，从而模拟具有数百万光学发射器的真实系统。(ii)一个随机优化模块，最大限度地提高材料功能的基础上几何和成分分布的发射器在介质中。该优化模块将并行模拟多个虚拟样品，并将引导计算工作朝向最佳材料。(iii)基于景观函数的数学概念，提出了一种电磁场局部化的合理化表示方法，有效地将局部化问题的特征值问题转化为静态边界条件问题。这种计算效率高的方法提供了近似的特征值，并快速识别支持电磁场定位的系统子区域。该项目得到了计算机信息科学工程局高级网络基础设施办公室&&和数学与物理科学局材料研究部的支持。该奖项反映了NSF的法定使命，并被认为是值得支持的，使用基金会的知识价值和更广泛的影响审查标准进行评估。