CAREER: Spin-dependent Optoelectronic Devices for Integrated Photonics

“这项奖励是根据2009年美国复苏和再投资法案（公法111-5）资助的。”目的：本研究的目的是通过实验了解利用电子自旋极化在波导中操纵光的要求，以开发用于光通信的集成光电器件。这项建议的教育目的是向学生和公众传达半导体物理和纳米技术的兴奋。知识价值：最近对电子自旋极化的测量，利用电场在皮秒时间尺度上产生和操纵，结合集成光子学技术的最新进展，为展示传统半导体中的电控集成光隔离器、千兆赫电光调制器和低损耗波导开关提供了途径。这项建议的教育成分，将通过物理入门课的示范、公开讲座和与公众的公开讨论，促进对纳米技术的更深入了解。更广泛的影响：本研究旨在展示一种基于电子自旋极化控制的新型光通信集成光电器件。这些设备不需要外加磁场，并且与目前用于电子产品的材料兼容。拟议的教育活动将通过密歇根大学的物理示范实验室、星期六上午物理项目和科学咖啡馆向公众传播纳米技术的最新发展。“面向未来的科学”职业计划将覆盖6-9年级的学生及其家庭，并为他们从事科学职业提供信息、激励和准备。

"This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5)."Objective: The objective of this research is to experimentally understand the requirements for manipulating light in waveguides using electron spin polarization in order to develop integrated optoelectronic devices to be used for optical communication. The objective of the educational component of this proposal is to convey the excitement of semiconductor physics and nanotechnology to students and the public. Intellectual merit: Recent measurements of electron spin polarization that is generated and manipulated at picosecond timescales using electric fields combined with recent advances in integrated photonics technology offer a pathway for demonstrating electrically-controlled integrated optical isolators, gigahertz electro-optic modulators and low-loss waveguide switches in conventional semiconductors. With the educational component of this proposal, it will promote greater understanding of nanotechnology through demonstrations for introductory physics classes, public lectures and open discussions with the public. Broader impacts: This research aims to demonstrate a new class of integrated optoelectronic devices for optical communications, based upon control of electron spin polarization. These devices do not require applied magnetic fields and are compatible with the materials currently used for electronics. The proposed educational activities will disseminate current developments in nanotechnology to the public through the Physics Demonstration Lab, the Saturday Morning Physics program and Science Cafes at the University of Michigan. The "Science for Tomorrow" Career Program will reach students in grades 6-9 and their families and inform, motivate and prepare them for careers in science.