权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Superresolution imaging via linear optics in the far-field regime

在远场区域通过线性光学进行超分辨率成像

基本信息

批准号：
2285090
负责人：
金额：
--
依托单位：
University of Oxford
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2019
资助国家：
英国
起止时间：
2019 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=studentship-2285090
关键词：
Superresolution imaging via linear optics

项目摘要

Rayleigh's criterion defines the minimum resolvable distance between two incoherent point sources as the diffraction-limited spot size. Enhancing the resolution beyond this limit has been a crucial outstanding problem for many years. A number of solutions have been realized; however, all of them so far relied either on near-field or nonlinear-optical probing, which makes them invasive, expensive and not universally applicable. It would therefore be desirable to find an imaging technique that is both linear-optical and operational in the far-field regime. A recent theoretical breakthrough demonstrated that "Rayleigh's curse" can be resolved by coherent detection the image in certain transverse electromagnetic modes, rather than implementing the traditional imaging procedure, which consists in measuring the incoherent intensity distribution over the image plane. To date, there exist proof-of-principle experimental results demonstrating the plausibility of this approach. The objective of the project is to test this approach in a variety of settings that are relevant for practical application, evaluate its advantages and limitations. If successful, it will result in a revolutionary imaging technology with a potential to change the faces of all fields of science and technology that involve optical imaging, including astronomy, biology, medicine and nanotechnology, as well as optomechanical industry.This project falls under the EPSRC Quantum optics and information theme

瑞利准则将两个非相干点源之间的最小可分辨距离定义为衍射极限光斑尺寸。多年来，将分辨率提高到超过这一限度一直是一个关键的悬而未决的问题。已经实现了许多解决方案;然而，到目前为止，所有这些解决方案都依赖于近场或非线性光学探测，这使得它们具有侵入性、昂贵且不普遍适用。因此，希望找到一种既线性光学又可在远场范围内操作的成像技术。最近的一项理论突破表明，“瑞利诅咒”可以解决相干检测的图像在某些横向电磁模式，而不是实施传统的成像程序，其中包括在测量的非相干强度分布的图像平面。到目前为止，存在原理验证实验结果证明了这种方法的可行性。该项目的目标是在各种与实际应用相关的环境中测试这种方法，评估其优点和局限性。如果成功，它将导致一种革命性的成像技术，有可能改变涉及光学成像的所有科学和技术领域的面貌，包括天文学，生物学，医学和纳米技术，以及光机械工业。该项目属于EPSRC量子光学和信息主题福尔斯