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相关概念视频

Atomic Emission Spectroscopy: Instrumentation01:22

Atomic Emission Spectroscopy: Instrumentation

391
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.
391

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相关实验视频

Updated: Jul 2, 2025

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
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一个固态高波生成光谱仪,具有低温冷却.

Finn Kohrell1,2, Bailey R Nebgen2,3, Jacob A Spies2,3

  • 1Institute for Optics and Quantum Electronics, Friedrich Schiller University Jena, 07743 Jena, Germany.

The Review of scientific instruments
|February 28, 2024
PubMed
概括
此摘要是机器生成的。

我们开发了一种先进的固态高波生成 (sHHG) 光谱仪,用于冷测量. 这种新工具可以对冷凝物质进行温度依赖的sHHG研究,尤其是在低温下进行高度相关的材料.

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A Simple Dewar/Cryostat for Thermally Equilibrating Samples at Known Temperatures for Accurate Cryogenic Luminescence Measurements
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科学领域:

  • 凝聚物质物理学 凝聚物质物理学
  • 量子光学就是一个量子光学.
  • 频谱学是一种光谱学.

背景情况:

  • 固态高波生成 (sHHG) 光谱是一种用于探测电子性质的强大方法.
  • 目前的局限性阻碍了低温测量,限制了对新出现的量子现象的研究.

研究的目的:

  • 实施一种能够进行冷温度测量的先进的sHHG光谱仪.
  • 为了使温度依赖的sHHG光谱能够降低到几克尔文.

主要方法:

  • 在真空室和闭环冷机内建造一个sHHG光谱仪.
  • 整合一个现场温度探头来监测样本温度.
  • 应用高强度的秒激光脉冲来产生波.

主要成果:

  • 在激光激发过程中,光谱仪成功地保持了样品相互作用区域的冷温度.
  • 证明了在低温水平上对温度依赖的sHHG测量的能力.

结论:

  • 开发的冷却式sHHG光谱仪是低温冷凝物质研究的新工具.
  • 这种技术对于研究高度相关的材料及其低温新兴相特别有价值.