Nonreciprocity at telecom wavelengths

电信波长的非互易性

• 批准号: 2226109
• 负责人: Janice Musfeldt
• 金额: $ 46.94万
• 依托单位: University of Tennessee Knoxville
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-08-01 至 2026-07-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2226109&HistoricalAwards=false
• 关键词: Nonreciprocity; telecom; wavelengths

Non-technical abstract: The overall goals of this program are to explore nonreciprocity in a series of Er-containing multiferroics and to invest in the education of a diverse group of young people at the University of Tennessee. Both initiatives merit broad support because they will advance the fundamental understanding of one-way transparency in ultra-low symmetry materials and contribute to important societal values and outcomes. To focus our efforts, we will concentrate on nonreciprocity in the C-band telecom regime – particularly at 1550 nm where Er glass fibers are currently in use – and several different Er-containing systems have been selected to test these ideas using high field spectroscopies at the National High Magnetic Field Laboratory. A broad range of educational, outreach, and service activities will also take place under the auspices of this National Science Foundation-funded program, especially in the areas of diversity, conference and workshop organization, and service to various national laboratories.Technical abstract: The research outlined in this proposal builds upon our team’s recent discovery of nonreciprocal directional dichroism across the telecom wavelength range in Ni3TeO6. Given the commercial use of drawn Er-glass fibers for optical communications, we hypothesize that multiferroics like Er-substituted YMnO3, Er-doped Ni3TeO6, ErFe3(BO3)4, and ErFeO3 may offer broken symmetry, low loss environments in which changing magnetic field or light propagation direction can create optical diode effects. Our goals are to (i) reveal new states of matter hosting unusual symmetries and properties, (ii) explore how ultra-low symmetries generate dynamic magnetoelectric coupling and nonreciprocity, (iii) test strategies for placing dichroic contrast in the C-band region, (iv) unravel structure-property relations connected with nonreciprocity, and (v) discover how these effects can be enhanced and controlled. What brings these efforts together is the opportunity to explore completely new types of light-matter interactions under extreme conditions. Findings from this program will advance theoretical development and photonics applications. This program also supports the interdisciplinary education of a diverse group of young researchers for future employment in academics, government laboratories, and industry in the area of quantum materials.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.

非技术摘要：该计划的总体目标是探索一系列含铒多铁性材料的非互惠性，并投资于田纳西大学不同群体的年轻人的教育。这两项倡议都值得广泛支持，因为它们将促进对超低对称材料单向透明性的基本理解，并为重要的社会价值和成果做出贡献。为了集中我们的努力，我们将集中在C波段电信制度的非互易性-特别是在1550 nm的Er玻璃纤维目前正在使用-和几个不同的含Er系统已被选择来测试这些想法使用高场光谱在国家高磁场实验室。一个广泛的教育，推广和服务活动也将在这个国家科学基金会资助的计划的主持下进行，特别是在多样性，会议和研讨会的组织，并为各个国家实验室提供服务的领域。技术摘要：在这个建议中概述的研究建立在我们的团队最近发现的非互易定向二向色性在整个电信波长范围内的Ni 3 TeO 6。考虑到拉制的Er玻璃光纤在光通信中的商业用途，我们假设多铁性材料如Er取代的YMnO 3、Er掺杂的Ni 3 TeO 6、ErFe 3（BO 3）4和ErFeO 3可以提供对称性破缺、低损耗的环境，在这种环境中，改变磁场或光传播方向可以产生光二极管效应。我们的目标是（i）揭示新的物质状态托管不寻常的对称性和属性，（ii）探索超低对称性如何产生动态磁电耦合和非互易性，（iii）测试策略放置在C带区域的二向色性对比，（iv）解开结构与非互易性的关系，以及（v）发现这些效果如何可以被增强和控制。将这些努力结合在一起的是在极端条件下探索全新类型的光-物质相互作用的机会。该计划的发现将推动理论发展和光子学应用。该计划还支持对一批年轻研究人员进行跨学科教育，以便他们将来在量子材料领域的学术界、政府实验室和工业界就业。该奖项反映了NSF的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。