Terahertz Plasmonic Subwavelength Photonics

太赫兹等离子体亚波长光子学张伟立俄克拉荷马州立大学0601574智力优势：本项目专注于具有太赫兹频率亚波长微结构的二维等离子体光子学的基础研究和开发。表面等离子激元与太赫兹光谱学的结合，将成为从根本上理解太赫兹表面等离子激元的性质及其光电应用的一个卓有成效的领域。该计划包括多个研究目标：(1)PI继续专注于亚波长等离子体结构的共振太赫兹传输和太赫兹表面等离子体的表面效应。将进行一项概念验证研究，以测试在生物传感应用中使用太赫兹表面等离子激元的能力。(2)研究可调谐太赫兹表面等离子体。这将是独一无二的，因为半导体将被光学选通以表现出瞬时的金属性质，这反过来又支持表面等离子体的共振激发。(3)在许多亚波长等离子体结构中将研究局域太赫兹表面等离子激元。更广泛的影响：太赫兹等离子体的进步将使新型太赫兹光电子和光子设备的开发成为可能，这些设备将影响广泛的学科。PI将寻求与公司在开发基于太赫兹的等离子体传感器和光电设备方面的合作，并寻求商业化机会。教育部分包括为研究生、本科生和高中生开发和培训新课程。俄克拉荷马州立大学将为参与光子学项目的学生开发一门新的研究生水平的等离子体光子学课程。为了吸引优秀的本科生，将定期向高中生及其家长，特别是俄克拉荷马美洲原住民学生和家长提供洁净室开放日。

Terahertz Plasmonic Subwavelength PhotonicsWeili ZhangOklahoma State University0601574Intellectual Merit: This project focuses on fundamental investigation and development of two-dimensional plasmonic photonics with subwavelength microstructures functioning at terahertz frequencies. The combination of surface plasmons and terahertz spectroscopy will be a fruitful field in fundamental understanding of both the properties of terahertz surface plasmons and their optoelectronic applications. This program encompasses multiple research objectives: (1) The PI continues his focus on resonant terahertz transmission of subwavelength plasmonic structures and the surface effects of terahertz surface plasmons. A proof-of-concept study will be undertaken to test the capability of using terahertz surface plasmons in biosensing applications. (2) Tunable terahertz surface plasmons will be investigated. These would be unique in that semiconductors will be optically gated to exhibit instantaneous metallic properties, which in turn support the resonant excitation of surface plasmons. (3) Localized terahertz surface plasmons will be investigated in a number of subwavelength plasmonic structures. Broader Impacts: Advances in terahertz plasmonics will enable development of novel terahertz optoelectronic and photonic devices that will impact a broad range of disciplines. The PI will seek collaborations with companies in developing terahertz-based plasmonic sensors and optoelectronic devices, and pursuing commercialization opportunities. The educational component consists of new course development and training for graduate, undergraduate and high school students. A new graduate level course on plasmonic photonics will be developed for students involved in the photonics program at the Oklahoma State University. A cleanroom open house will be offered regularly to high school students and their parents, particularly the Oklahoma Native American students and parents in order to attract excellent undergraduate students.