CAREER: Extraordinary Enhancement of Optical Nonlinearity in Subwavelength Metal-Nonlinear Dielectric Gratings

职业：亚波长金属非线性介质光栅光学非线性的非凡增强

• 批准号: 1254649
• 负责人: Jung-Tsung Shen
• 金额: $ 40万
• 依托单位: Washington University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-06-01 至 2019-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1254649&HistoricalAwards=false
• 关键词: CAREER; Extraordinary; Enhancement; Optical; Nonlinearity

The objective of this program is to advance the understanding of the mechanisms for enhancing optical nonlinearity in subwavelength metallic nanostructures. The approach is: (1) to examine the nonlinearity enhancement in subwavelength metal-nonlinear dielectric grating systems; (2) to develop an effective medium (metamaterial) description to assess the enhancement and to predict new optical phenomena; and (3) to investigate the fundamental limit of the enhancement and to explore the dependence of enhancement on grating geometry. The success of this proposal will be transformative to optical science, providing a viable mechanism for enhancing and tailoring the optical nonlinearity to create multi-functional nonlinear optical materials.Intellectual merit: Recent advances in artificially created inhomogeneous composite materials have established the opportunity for synthesis of new classes of material that will enable new families of linear and nonlinear nanophotonic devices. The PI will examine the mechanisms for extraordinary enhancement of optical nonlinearity in nano-structures and the applications. The research findings of this proposal will make possible ultra-compact, ultrafast, and energy-efficient nonlinear optical devices for optical switching and modulation to prepare for future demands for broadband signal processing.Broader impacts: This research program presents an approach to develop novel nonlinear artificially engineered material structures. The interdisciplinary science and engineering training and education will also involve working with minority, women and K-12 teachers and students. The PI participates in a technology outreach program, and will further contribute to general public science awareness programs through outreach activities.

该程序的目的是提高对增强亚波长度金属纳米结构中光学非线性的机制的理解。该方法是：（1）检查亚波长金属非线性介电光栅系统的非线性增强； （2）开发有效的培养基（超材料）描述，以评估增强并预测新的光学现象； （3）研究增强的基本限制并探索增强对光栅几何形状的依赖性。 The success of this proposal will be transformative to optical science, providing a viable mechanism for enhancing and tailoring the optical nonlinearity to create multi-functional nonlinear optical materials.Intellectual merit: Recent advances in artificially created inhomogeneous composite materials have established the opportunity for synthesis of new classes of material that will enable new families of linear and nonlinear nanophotonic devices. PI将检查纳米结构和应用中光学非线性极大增强的机制。该提案的研究结果将使用于光学切换和调制的超紧凑，超快和节能的非线性光学设备，以为对宽带信号处理的未来需求做好准备。BROADER的影响：该研究计划提出了一种开发新型非线性人工工程材料结构的方法。跨学科的科学与工程培训和教育也将涉及与少数族裔，妇女和K-12教师和学生一起工作。 PI参加了一项技术外展计划，并将通过外展活动进一步为通用公共科学意识计划做出贡献。