高效且无偏差的非平面格子谱仪和单色谱仪用于EUV软X射线应用
Jie Li1,2, Kui Li3,4, Xiaoshi Zhang5,6,7
1Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100094, China. lijie430@aircas.ac.cn.
Light, science & applications
|January 7, 2024
概括
我们开发了一种新的EUV软X射线光谱仪和单色谱仪,效率超过60%和高光谱分辨率. 这种仪器使得纳米和生物系统的超快速成像能够以5秒的精度进行.
科学领域:
- 光学和光子学 在光学和光子学.
- 频谱学是一种光谱学.
- 射线科学X射线科学X射线科学
背景情况:
- 先进的光谱仪器对于探测超快现象至关重要.
- 现有的EUV软X射线仪器通常面临效率和光谱分辨率的局限性.
研究的目的:
- 为EUV软X射线范围推出一种新的平面场,双光学成像光谱仪和单色谱仪.
- 为了实现高吞吐效率和光谱分辨率,没有变量线距格子.
主要方法:
- 在光学系统设计中使用形衍射几何.
- 全球优化在多维参数空间中的性能.
- 采用单个无偏差格子来进行光谱仪-单色染色器转换.
主要成果:
- 实现了超过60%的吞吐效率.
- 获得的光谱分辨率 (λ/Δλ) > 200.
- 证明了最小的时间分散 (<80 fs尾到尾,29 fs FWHM).
- 在射顺序上保持着极化状态.
结论:
- 开发的仪器为EUV软X射线光谱和成像提供了前所未有的性能.
- 它作为光谱仪和单色仪的多功能性促进了先进的应用.
- 实现了先进的纳米和生物成像,并增强了时空分辨率.
相关概念视频
UV–Vis Spectrometers
1.3K
The absorbance of UV and visible (UV–visible) radiations is measured using a UV–visible spectrophotometer. Deuterium lamps, which emit UV radiation, and tungsten lamps, which produce radiation in the visible region, are used as light sources in UV–visible spectrophotometers. A monochromator or prism is used for diffraction grating, i.e., to split the incoming radiation into different wavelengths. A system of slits is used to focus the desired wavelength on the sample cell.
1.3K
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation
228
Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
228
Atomic Absorption Spectroscopy: Instrumentation
741
An atomic absorption spectrophotometer (AAS) comprises several components: a radiation source, an atomizer, a monochromator, and a detector. The radiation source can be a hollow-cathode lamp (HCL) or an electrodeless-discharge lamp (EDL), both of which provide a narrow emission line of the required wavelength. However, some instruments use continuum sources and high-resolution monochromators to achieve a narrow range of radiation.
The atomizer used in AAS can be either a flame atomizer or an...
The atomizer used in AAS can be either a flame atomizer or an...
741
Atomic Emission Spectroscopy: Instrumentation
486
The instrumentation of atomic emission spectrometry (AES) involves various components, including atomization devices that convert samples into gas-phase atoms and ions. There are two main types of atomization devices: continuous and discrete atomizers. Continuous atomizers, like plasmas and flames, introduce samples in a constant stream, while discrete atomizers inject individual samples using syringes or autosamplers. The most common discrete atomizer is the electrothermal atomizer.
486


