Materials World Network: Complex Oxides for Heterogeneous Optoelectronic Integration

材料世界网：用于异质光电集成的复杂氧化物

• 批准号: 1210818
• 负责人: Bethanie Stadler
• 金额: $ 15万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-08-15 至 2014-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1210818&HistoricalAwards=false
• 关键词: Materials; World; Network; Complex; Oxides

TECHNICAL SUMMARY: This US-UK Materials World Network collaboration focuses on adding magneto-optical (MO) and electro-optical (EO) properties that are orders of magnitude greater than currently available to semiconductor photonics by integrating both doped yttrium iron garnet and lithium niobate, respectively, onto III-V structures. With motivations such as source-integrated photonic integrated circuits and electronically-reconfigurable opto-electronic integrated circuits, there has been intense work on adding MO and EO materials to semiconductor platforms. However, complex oxide integration requires thermal crystallization methods together with thermal expansion mismatch, substrate dissociation, and interfacial diffusion. This work aims to converge on a solution involving controlled strain and interfaces using buffer layers and seed layers (both ~10 nm), oxide patterning, and rapid thermal annealing for minimized thermal treatment. Subsequent doping in thicker films is used to meet specifications of maximized MO or EO activity. The optical, magnetic, and electronic properties are characterized to analyze the both the structures and compositions, and the materials performance is tested on carefully designed waveguide structures. In the case of MO integration, non-reciprocity is expected to be realized without the high-power options. Integrated ferroelectric oxides also unlocks doors to EO functionality in both near and long term applications, such as active frequency modulation and reconfigurable photonics.NON-TECHNICAL SUMMARY: This research project is a collaboration between US and UK scientists. The research focuses on integration of magneto-optical and electro-optical materials with semiconductor materials, opening doors for novel properties such as enhanced magneto-optical activity and new devices such as photonic isolators so that optical sources can be integrated with photonic integrated circuits. The team meets online with tools that enable attendees to see each other's faces, writings and slides, and to hear each other's voices. The pedagogy of these tools will be an interesting side study. In addition, students exchange time in each other's lab to gain important experience with new cultures and new science. It is anticipated that the online/exchange interaction model developed here in international research will be extended to US-Kenya and UK-Pakistan collaborations in the future - building on relationships that are already underway. This project is supported by the Electronic and Photonic Materials program and Office of Special Programs, Division of Materials Research.

技术摘要：这种US-UK材料世界网络协作着重于在分别集成掺杂的Yttrium Yttrium Iron Garnet和Niiobate的掺杂型niobate和IIII-V结构上，将磁光分（MO）和电光（EO）特性添加比目前可用于半导体光子学的数量级。凭借诸如源集成光子集成电路和电子结合光电电路集成电路等动机，在将MO和EO材料添加到半导体平台中已经进行了巨大的工作。但是，复杂的氧化物整合需要热结晶方法，以及热膨胀不匹配，底物解离和界面扩散。这项工作旨在将使用缓冲层和种子层（均约10 nm），氧化物模式和快速热退火的溶液收敛，该溶液涉及受控应变和界面，以最小化热处理。随后的较厚膜中的掺杂用于满足最大化MO或EO活性的规格。光学，磁性和电子性能的特征是分析结构和组成，并在精心设计的波导结构上测试了材料性能。在MO集成的情况下，预计没有高功率选项就可以实现非重生。综合的铁电氧化物还可以在近期和长期应用中为EO功能解锁门，例如主动频率调制和可重新配置的光子学。没有技术摘要：该研究项目是美国和英国科学家之间的合作。该研究的重点是将磁光和电流材料与半导体材料的整合，用于新型特性的开门，例如增强的磁光活性和新设备，例如光子隔离器，因此可以将光源与光子集成电路集成。该团队使用工具在线开会，使与会者能够看到彼此的脸，著作和幻灯片，并听到彼此的声音。这些工具的教学法将是一项有趣的附带研究。此外，学生在彼此的实验室中交换时间，以获得新的文化和新科学的重要经验。预计在国际研究中开发的在线/交流互动模型将来将扩展到US-Kenya和UK-Pakistan的合作 - 建立在已经进行的关系的基础上。该项目得到了电子和光子材料计划以及材料研究部特别计划办公室的支持。