CAREER: Flat Singular Optics: Generation and Detection of Optical Vortex Beams with Plasmonic Metasurfaces in Linear and Nonlinear Regimes

职业：平面奇异光学：在线性和非线性体系中使用等离激元超表面生成和检测光学涡旋光束

• 批准号: 2204163
• 负责人: Jie Gao
• 金额: $ 50万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-10-01 至 2023-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2204163&HistoricalAwards=false
• 关键词: CAREER; Flat; Singular; Optics; Generation

Abstract Title: CAREER: Flat Singular Optics: Generation and Detection of Optical Vortex Beams with Plasmonic Metasurfaces in Linear and Nonlinear RegimesNontechnical Description:The study of the phenomena of phase and polarization singularities is known as singular optics. Vortex beams display singular scalar features with phase singularities in the beam center, while polarization singular beams present singular vectorial features with one undefined polarization parameter. The current open research challenges in singular optics are how to generate pure vortices with broad bandwidth and polarization singular beams on chip, how to realize compact linear and nonlinear vortex beam converters, and what kind of device enables direct identification of vortex topological charges. In order to address these challenges, in this research, uniquely designed plasmonic metasurfaces made of ultrathin metallic nanostructures are utilized as a powerful and compact platform for exploring flat singular optics, generating singular optical beams in both linear and nonlinear regimes, as well as detecting vortex beam orbital angular momentum with optoelectronic integration. This research paves the way for advancing many applications in optical communication, beam shaping and conversion, optoelectronic devices, and optical sensing and imaging. The research of singular optics and metasurfaces is integrated with education and outreach activities in order to enhance various levels of education, including undergraduate and graduate students training, underrepresented and female students recruitment, women in optics student group organization, interdisciplinary metamaterials course development and outreach activities for K-12 students. Technical Description:The goals of the research are to explore the generation and detection of optical vortex beams using ultra-thin plasmonic metasurfaces in both linear and nonlinear regimes in order to solve open research challenges and create new opportunities in singular optics, gain fundamental knowledge of spin-orbit and orbit-orbit interactions and optical angular momentum conservation. The research uses the approaches of linear and nonlinear optical design and simulation, plasmonic metasurface sample nanofabrication, optical and optoelectronic device characterizations to study the underlying physics of metasurface based light manipulation and light-matter interaction in singular optics, nonlinear optics, and spin-orbit photonics. The intellectual significance of the activity includes: (i) generation of pure optical vortex beams and polarization singular beams to advance the research of complex structured light manipulation and topological singularities; (ii) exploration of second- and third-harmonic vortex beam generation and beam shaping in nonlinear plasmonic metasurfaces to reveal the conservation law of orbital angular momentum and create compact nonlinear beam converters and active photonic devices; (iii) realization of optoelectronic vortex beam detection based on spin and orbital Hall effects in plasmonic metasurfaces to solve the challenge of on-chip orbital angular momentum detection and build functional metasurface based optoelectronic devices.

摘要标题：职业：平面奇点光学：线性和非线性体系中具有等离激元超表面的光学涡旋光束的生成和检测非技术描述：对相位和偏振奇点现象的研究被称为奇点光学。涡旋光束在光束中心显示出具有相位奇点的奇异标量特征，而偏振奇异光束则呈现出具有一个未定义的偏振参数的奇异矢量特征。当前奇异光学领域的开放研究挑战是如何在芯片上产生宽带宽的纯涡旋和偏振奇异光束，如何实现紧凑的线性和非线性涡旋光束转换器，以及什么样的器件能够直接识别涡旋拓扑电荷。为了应对这些挑战，在这项研究中，采用独特设计的由超薄金属纳米结构制成的等离子体超表面作为一个强大而紧凑的平台，用于探索平面奇异光学，在线性和非线性状态下生成奇异光束，以及检测涡流具有光电集成的光束轨道角动量。这项研究为推进光通信、光束整形和转换、光电器件以及光学传感和成像领域的许多应用铺平了道路。奇异光学和超表面的研究与教育和外展活动相结合，以提高各个层次的教育，包括本科生和研究生培训、代表性不足的学生和女学生招生、光学学生团体中的女性组织、跨学科超材料课程开发和外展活动适合 K-12 学生。技术描述：该研究的目标是探索在线性和非线性状态下使用超薄等离子体超表面产生和检测光学涡旋光束，以解决开放的研究挑战并在奇异光学中创造新的机会，获得以下方面的基础知识：自旋轨道和轨道-轨道相互作用以及光学角动量守恒。该研究采用线性和非线性光学设计和模拟、等离子体超表面样品纳米加工、光学和光电器件表征的方法来研究奇异光学、非线性光学和自旋轨道中基于超表面的光操控和光与物质相互作用的基础物理光子学。该活动的智力意义包括：（i）产生纯光学涡旋光束和偏振奇异光束，以推进复杂结构光操纵和拓扑奇点的研究； (ii) 探索非线性等离子体超表面中的二次和三次谐波涡旋光束生成和光束整形，以揭示轨道角动量守恒定律并创建紧凑的非线性光束转换器和有源光子器件； （iii）实现基于等离子体超表面中自旋和轨道霍尔效应的光电涡旋光束检测，以解决片上轨道角动量检测的挑战并构建基于功能性超表面的光电器件。

项目成果

Natural layered mercury antimony sulfosalt livingstonite with anisotropic optical properties

具有各向异性光学特性的天然层状汞锑硫盐活石

• DOI: 10.1364/oe.458576
• 发表时间: 2022-01
• 期刊: Optics Express
• 影响因子: 3.8
• 作者: Tripathi, Ravi P.;Gao, Jie;Yang, Xiaodong
• 通讯作者: Yang, Xiaodong

Natural van der Waals heterostructure cylindrite with highly anisotropic optical responses

具有高度各向异性光学响应的​​天然范德华异质结构柱晶

• DOI: 10.1038/s41699-021-00254-9
• 发表时间: 2021-08
• 期刊: npj 2D Materials and Applications
• 影响因子: 9.7
• 作者: Dasgupta, Arindam;Gao, Jie;Yang, Xiaodong
• 通讯作者: Yang, Xiaodong

Naturally occurring van der Waals heterostructure lengenbachite with strong in-plane structural and optical anisotropy

天然存在的范德华异质结构长石钙石，具有强面内结构和光学各向异性

• DOI: 10.1038/s41699-021-00271-8
• 发表时间: 2021-11
• 期刊: npj 2D Materials and Applications
• 影响因子: 9.7
• 作者: Dasgupta, Arindam;Yang, Xiaodong;Gao, Jie
• 通讯作者: Gao, Jie

Polarization-dependent optical responses in natural 2D layered mineral teallite

天然二维层状矿物绿茶石中偏振相关的光学响应

• DOI: 10.1038/s41598-021-01511-z
• 发表时间: 2021-11-08
• 期刊: Scientific Reports
• 影响因子: 4.6
• 作者: Tripathi RPN;Yang X;Gao J
• 通讯作者: Gao J

Chiral metasurfaces of wavy rectangle resonators with tunable circular dichroism

具有可调谐圆二色性的波状矩形谐振器的手性超表面

• DOI: 10.1016/j.ijleo.2023.171024
• 发表时间: 2023-05-01
• 期刊: Optik
• 影响因子: 3.1
• 作者: Xiang;D. Rosenmann;D. Czaplewski;Jie Gao;Xiaodong Yang
• 通讯作者: Xiaodong Yang