CAREER: Optical Vortices and Rotation

职业：光学涡旋和旋转

• 批准号: 1554704
• 负责人: Juliet Gopinath
• 金额: $ 50万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-02-01 至 2023-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1554704&HistoricalAwards=false
• 关键词: CAREER; Optical; Vortices; Rotation

Title: Optical Vortices and RotationNontechnical description Light with a spiral phase, or orbital angular momentum, has recently garnered a lot of interest, as a seminal piece of the 2014 Nobel prize-winning super-resolution microscopy technique. It can also be used to rotate objects and measure the rotation speed of objects, with sizes ranging from the macroscale (kilometers) to the nanoscale (nanometers). The research objective of this proposal is to study the relationship between orbital angular momentum and rotating objects. Orbital angular momentum can be used to measure rotation and the rotating objects themselves can be used to measure spiral phase content of laser beams. The results from the research will be far-reaching, with information about orbital angular momentum modal content essential for free-space communications and endoscopic super-resolution imaging (STED) for protein-level imaging in the human body. Additionally, rotation and the measurement of nanoparticles are important for microfluidics and biology, in particular for the treatment of disease. This fresh perspective on the interaction of rotating objects and orbital angular momentum will spawn new directions in imaging, spectroscopy, lithography, quantum optics, and medicine. Research results will disseminated to K-12, college and graduate students through outreach activities and research opportunities.Technical description Light with orbital angular momentum, or "twisted" light, was discovered in 1992, and subsequently has been applied to super-resolution imaging and high bandwidth communications. The proposed research takes an innovative approach to study the interaction of orbital angular momentum and rotating objects. Orbital angular momentum can be used to rotate objects, measure their speed and infer position, and the objects themselves can be used to measure the orbital angular momentum content of a light beam, potentially with much greater resolution than current methods. It is especially interesting to consider not only macroscopic objects but microscopic ones as well, such as nanoparticles and micromachines. The concepts in the research can be used for a number of high-impact areas including gyroscopes, remote sensing, nanoparticles for cancer treatment, communications links, and super-resolution microscopy and lithography. Fields ranging from physics to engineering to materials science will benefit from the research outcomes.

标题：光学涡旋和旋转非技术描述作为 2014 年诺贝尔奖获得者超分辨率显微镜技术的开创性成果，具有螺旋相位或轨道角动量的光最近引起了广泛的关注。它还可以用来旋转物体并测量物体的旋转速度，尺寸范围从宏观尺度（千米）到纳米尺度（纳米）。该提案的研究目标是研究轨道角动量与旋转物体之间的关系。轨道角动量可用于测量旋转，旋转物体本身可用于测量激光束的螺旋相位含量。该研究的结果将具有深远的影响，其中包括关于自由空间通信和人体蛋白质水平成像的内窥镜超分辨率成像（STED）所必需的轨道角动量模态内容的信息。此外，纳米颗粒的旋转和测量对于微流体和生物学非常重要，特别是对于疾病的治疗。这种关于旋转物体和轨道角动量相互作用的新视角将为成像、光谱学、光刻、量子光学和医学领域带来新的方向。研究成果将通过外展活动和研究机会向 K-12、大学生和研究生传播。技术描述 具有轨道角动量的光，或“扭曲”光，于 1992 年被发现，随后被应用于超分辨率成像和高带宽通信。拟议的研究采用创新方法来研究轨道角动量和旋转物体的相互作用。轨道角动量可用于旋转物体、测量其速度并推断位置，并且物体本身可用于测量光束的轨道角动量含量，其分辨率可能比当前方法高得多。尤其有趣的是，不仅要考虑宏观物体，还要考虑微观物体，例如纳米粒子和微型机器。研究中的概念可用于许多高影响领域，包括陀螺仪、遥感、用于癌症治疗的纳米颗粒、通信链路以及超分辨率显微镜和光刻。 从物理学到工程学再到材料科学等领域都将从研究成果中受益。

项目成果

Two-photon, fiber-coupled, super-resolution microscope for biological imaging

用于生物成像的双光子、光纤耦合、超分辨率显微镜

• DOI: 10.1063/5.0075012
• 发表时间: 2022-03
• 期刊: APL Photonics
• 影响因子: 5.6
• 作者: Heffernan, Brendan M.;Riley, Peter S.;Supekar, Omkar D.;Meyer, Stephanie A.;Restrepo, Diego;Siemens, Mark E.;Gibson, Emily A.;Gopinath, Juliet T.
• 通讯作者: Gopinath, Juliet T.