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Super-resolution Fluorescence Microscopy

Super-resolution Fluorescence Microscopy

Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been developed.

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相关实验视频

Updated: Jun 23, 2026

Optical Trapping of Nanoparticles

Optical Trapping of Nanoparticles

Published on: January 15, 2013

通过单个纳米尖实现强大的单光子阻塞.

Jian Tang¹, Yunlan Zuo^1,2, Xun-Wei Xu¹

¹Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications, Hunan Normal University, Changsha 410081, China.

|March 4, 2025

概括

我们展示了纳米尖端如何保护光学共振器中的单光子阻塞 (SPB) 免受反射损失 (BSL) 的影响. 这种纳米级工程方法保留了量子相关性,使强大的量子设备成为可能.

关键词:

背向散射损失 (Backscattering Loss) 是一种损失.纳米子 nanotip 纳米子光学非线性是指光学非线性.摄像头封锁摄像头封锁量子相关性是一种量子相关性.一个单光子的光子.

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Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment

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Published on: April 4, 2017

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Last Updated: Jun 23, 2026

Optical Trapping of Nanoparticles

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Published on: January 15, 2013

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

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Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment

Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment

Published on: April 4, 2017

科学领域:

量子光学就是一个量子光学.
纳米光子学纳米光子学
固态物理固态物理

背景情况:

回散损失 (BSL) 降低了光学共振器的性能,特别影响单光子系统中的脆弱量子相关性.
针对BSL的强大的量子相关性对于先进的光子设备至关重要,但仍然在很大程度上未被探索.

研究的目的:

为了研究Kerr非线性共振器中对BSL的单光子阻塞 (SPB) 的保存.
探索纳米级工程的作用,特别是一个纳米尖端,在保护量子相关性.

主要方法:

在Kerr非线性共振器附近引入一个纳米尖端,具有内在缺陷.
调整纳米尖的位置,观察它在不同的BSL条件下对SPB的影响.
通过光学合和共振器非线性分析量子相关性和经典平均光子数.

主要成果:

在没有纳米尖端的情况下,BSL会破坏SPB.
定位纳米尖可恢复SPB的稳固性,即使在强大的BSL.
量子相关性与被抑制的经典平均光子数一起出现,这是由于非线性和尖端诱导合的相互作用.

结论:

使用纳米尖的纳米级工程有效地保护脆弱量子相关性 (SPB) 免受BSL的影响.
这种方法可以开发出强大的单光子源和反散免疫量子装置.
这些发现表明,在不完美的光学系统中利用量子现象是一种强大的策略.