Investigation of oxide nanophotonic devices

氧化物纳米光子器件的研究

• 批准号: 1201853
• 负责人: Bruce Wessels
• 金额: $ 36万
• 依托单位: Northwestern University
• 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: 2012-07-01 至 2015-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1201853&HistoricalAwards=false
• 关键词: Investigation; oxide; nanophotonic; devices

This project is jointly funded by the Electronics, Photonics, and Magnetic Devices Program (EPMD) in the Division of Electrical, Communications and Cyber Systems (ECCS) and the Electronic and Photonic Materials Program (EPM) in the Division of Materials Research (DMR).TECHNICAL: In this research non-linear photonic crystal (PhC) waveguide devices are being developed. Of particular interest are sub-terahertz PhC electro-optic modulators (EOM). This work builds on our recent demonstration of non-linear PhC EOMs with a bandwidth greater than 50 GHz. Based on recent device simulations non-linear PhC waveguide modulators are being designed and fabricated for sub-terahertz frequency and low-voltage (0.5V-mm) operation. To operate at low voltage, and wide bandwidth, ferroelectric BaTiO3 with large electro-optic coefficients are required. To minimize bandwidth limitations due to microwave losses, PhC and slow light concepts are utilized. Devices are fabricated using vapor phase epitaxial deposition, and both conventional photolithography and focused ion beam milling. Factors limiting bandwidth including microwave loss, optical/microwave velocity mismatch and device length are determined through modeling and testing. Chip-scale integration of these PC devices with a single platform is being pursued using epitaxial BaTiO3 on Si. NON-TECHNICAL: By using non-linear photonic crystals with large optical non-linearities, significant improvements in bandwidth, operating voltage, and size are expected compared to conventional electro-optic devices. It is anticipated that these devices should have excellent photo and thermal stability. The broader impact is the potential realization of sub-terahertz bandwidth, sub-millimeter size optical devices and photonic circuits for optical communications and information processing. The project will involve training of undergraduates, and graduate students in the area of nanophotonics as well as mentoring K-12 students. Outreach through industrial and government lab internships of doctoral students is involved.

该项目由电气、通信和网络系统部（ECCS）的电子、光子学和磁器件计划（EPMD）和材料研究部（DMR）的电子和光子材料计划（EMPM）共同资助。技术：在这项研究中，正在开发非线性光子晶体（PhC）波导器件。特别感兴趣的是亚太赫兹PhC电光调制器（EOM）。这项工作建立在我们最近演示的非线性PhC EOMs的带宽大于50 GHz。基于最新的器件模拟，我们正在设计和制作亚太赫兹频率和低电压（0.5V-mm）工作的非线性光子晶体波导调制器。为了在低电压和宽带宽下工作，需要具有大电光系数的铁电BaTiO 3。为了最小化由于微波损耗引起的带宽限制，利用了PhC和慢光概念。使用气相外延沉积以及常规光刻和聚焦离子束铣削来制造器件。通过建模和测试，确定了影响带宽的微波损耗、光/微波速度失配和器件长度等因素。这些PC设备的芯片级集成与一个单一的平台正在追求使用外延硅钛酸钡。非技术性：通过使用具有大的光学非线性的非线性光子晶体，与传统的电光器件相比，预期在带宽、工作电压和尺寸方面的显著改进。预期这些器件应具有优异的光稳定性和热稳定性。更广泛的影响是亚太赫兹带宽，亚毫米尺寸的光学器件和光通信和信息处理的光子电路的潜在实现。该项目将涉及纳米光子学领域的本科生和研究生的培训，以及对K-12学生的指导。通过博士生的工业和政府实验室实习进行外联。