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相关概念视频

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

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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....
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相关实验视频

Updated: Jun 28, 2025

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
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一次射击光谱圆测量的元表面阵列.

Shun Wen1, Xinyuan Xue1, Shuai Wang1

  • 1Department of Precision Instrument, State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing, 100084, China.

Light, science & applications
|April 10, 2024
PubMed
概括
此摘要是机器生成的。

本研究介绍了一种用于光谱圆测量的紧型超表面阵列系统. 它可以在没有机械部件的情况下进行快速,准确的薄膜分析,为高通量测量铺平了道路.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 光学工程是指光学工程.
  • 纳米技术 纳米技术

背景情况:

  • 光谱圆测量对于薄膜的表征至关重要.
  • 传统系统依赖于大型,机械复杂的组件,如旋转偏振器和光谱仪.
  • 这些局限性阻碍了高通量和紧型系统的开发.

研究的目的:

  • 开发一个紧的,机械上简单的光谱圆测量系统.
  • 为了实现单次射击光谱极极度检测,以快速进行薄膜分析.
  • 为了证明精确地确定薄膜厚度和折射率.

主要方法:

  • 使用一种基于的超表面阵列,具有异性质的光谱特性.
  • 实现了代优化算法来重建完整的斯托克斯极化谱.
  • 结合了超表面检测和光学建模用于数据分析.

主要成果:

  • 在没有机械运动的情况下实现了单次射击光谱极度测量检测.
  • 精确确定薄膜厚度和折射率,使用元表面系统.
  • 证明了斯托克斯极化谱的高保真度重建.

结论:

  • 基于超表面阵列的系统为传统圆仪提供了一个紧而强大的替代方案.
  • 这种方法可以实现薄膜性质的高通量表征.
  • 开辟了先进光学计量学和材料分析的新途径.