通过光学相关性测量分数拓电荷测量
Optics letters
|April 15, 2024
概括
研究人员开发了一种新的方法来测量光束中的分数拓电荷. 该技术使用混合数字光学相关器进行高效的实时轨道角动量分析.
科学领域:
- 光学和光子学 在光学和光子学.
- 量子信息科学 量子信息科学
背景情况:
- 带有微分拓电荷 (TC) 的光学束对于先进的应用至关重要.
- 与分数TC相关的轨道角动量 (OAM) 的精确测量对于利用它们的潜力至关重要.
研究的目的:
- 介绍一种新,简单,高效的技术,用于测量光束的微分TC.
- 为复杂的机器学习方法提供计算成本低廉,实时可实现的替代方案.
主要方法:
- 使用混合数字光学对应器.
- 采用叉形干扰模式的自动相关性,用于整数和分数TC.
主要成果:
- 展示了一种用于分数TC测量的新方法.
- 实现了实时实现,并降低了计算成本.
结论:
- 拟议的混合数字光学对应器为测量分数TC提供了一个实用的解决方案.
- 这种技术简化了OAM信息提取,有利于各种光学应用.
相关概念视频
01:182D NMR: Overview of Heteronuclear Correlation Techniques
176
Heteronuclear correlation spectroscopy is an analytical technique that investigates the coupling between different types of nuclei, often a proton and an X-nucleus, such as carbon-13 or nitrogen-15. This method is commonly used in nuclear magnetic resonance (NMR) spectroscopy to gain insights into complex chemical compounds' structural and compositional aspects. A typical heteronuclear correlation spectrum displays X-nucleus chemical shifts on one axis and a proton spectrum on the other...
176
01:192D NMR: Heteronuclear Single-Quantum Correlation Spectroscopy (HSQC)
702
Heteronuclear single-quantum correlation spectroscopy (HSQC) is a 2D NMR technique that reveals one-bond correlations between hydrogen and a heteronucleus. The HSQC experiment is similar to the heteronuclear correlation experiment (HETCOR) but is more sensitive. In the HSQC spectrum, the proton chemical shift is plotted on the horizontal F2 axis, while the 13C chemical shift is plotted on the vertical F1 axis. The corresponding proton and 13C spectra are also shown. The HSQC contour plot does...
702