Collaborative Research: Tunable Nanoscale Ferroelectric Photonic Crystals: Materials and Fabrication, Photonic Crystal Structures, and Devices

目的：本项目利用超薄铁电薄膜制备、纳米极化和非线性光学器件模拟等新进展，实现新型可调谐光子晶体器件。智力优势：该光子学项目将通过纳米结构铁电薄膜光子晶体来定制其光学响应，研究一类新的可调谐二阶光磁化率纳米光子器件。主要的挑战是超高分辨率极化、电极结构设计和薄膜器件的实现。关键要素是纳米制造方法，可调谐晶体的设计和测试，以及两个模型器件的制造。它的变革方面源于它的纳米尺度，提供了前所未有的控制相匹配，由于光限制。更广泛的影响：该项目涉及光子器件，这是一个对医学和生物科学传感器、数据传输和处理以及计量学具有广泛影响的领域。这项研究将被整合到哥伦比亚大学和奥尔巴尼大学的教育任务中，以促进人工非线性超材料的跨学科研究，并使两个具有强大互动历史的小组能够合作。这项工作将涉及学生互动和前往他们的合作大学。该项目将招募多元化的学生合作伙伴。招聘将通过每年与哥伦比亚大学和奥尔巴尼大学的本科生进行5次外展会谈，以及参加哥伦比亚大学的本科生研究机会项目来完成。该项目将使学生能够与布鲁克海文国家实验室的纳米中心合作，其中一位pi是创始主任，并与奥尔巴尼的离子束设施合作。该项目涉及与波恩大学（Soergel）和伦敦大学学院（Panoiu）的海外研究合作。该项目由电气、通信和网络系统部（ECCS）的电子、光子学和磁性器件计划（EPMD）和材料研究部（DMR）的电子和光子材料计划（EPM）共同资助。

Objective: This program uses new advances in ultrathin ferroelectric-film fabrication, nano-poling, and simulation methods for nonlinear-optical devices, to realize new tunable photonic-crystal devices.Intellectual Merit: This photonics program will investigate a new class of tunable second-order optical susceptibility nano-photonic device, by nano-structuring ferroelectric thin-film photonic crystals to tailor their optical response. The main challenges are ultrahigh-resolution poling, electrode-structure design, and thin-film device implementation. Key elements are nano-fabrication methods, design and testing of the tunable crystals, and two model-device fabrications. Its transformative aspect arises from its nanometer scale, providing unprecedented control of phase matching due to light confinement.Broader Impacts: This program involves photonic devices, an area with broad impact for sensors in medical and biological science, data transmission and processing, and metrology. The research will be integrated into the education mission of Columbia and the University at Albany to foster an interdisciplinary examination of artificial nonlinear metamaterials and to enable the two groups with a strong history of interactions to collaborate. This work will involve students interaction and travel to their partner universities. The program will recruit diverse student collaborators. Recruitment will be done via five yearly outreach talks to undergrads at Columbia and Albany and participation in Undergraduate Research Opportunities Program at Columbia. The project will enable students to collaborate with the Nanocenter at Brookhaven National Laboratory, which one of the PIs was the founding director, and with the Ion-Beam Facility at Albany. This program involves overseas research collaboration with University of Bonn (Soergel) and University College London (Panoiu).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 by the Electronic and Photonic Materials Program (EPM) in the Division of Materials Research (DMR).