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相关概念视频

Atomic Emission Spectroscopy: Interference01:30

Atomic Emission Spectroscopy: Interference

597
In atomic emission spectroscopy (AES), high-temperature atomizers excite a broad range of elements and molecules that generate complex emissions from sources such as oxides, hydroxides, and flame combustion products in the flame or plasma. Several strategies can be employed to minimize spectral interferences caused by overlapping emission lines or bands. These include increasing instrument resolution, choosing alternative emission lines, optimally placing the detector in low-background regions,...
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Interference and Diffraction02:18

Interference and Diffraction

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Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
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Atomic Absorption Spectroscopy: Interference01:25

Atomic Absorption Spectroscopy: Interference

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Interference leads to systematic error in atomic absorption (AA) measurements by enhancing or diminishing the analytical signal or the background. These interferences can be grouped into three main categories: spectral interference, chemical interference, and physical interference.
Spectral interference occurs when signals from other elements or molecules overlap with the analyte signal, falsely elevating or masking the analyte's absorbance. This interference can be corrected using Zeeman,...
2.0K
Inductively Coupled Plasma-Mass Spectrometry (ICP-MS): Interferences01:20

Inductively Coupled Plasma-Mass Spectrometry (ICP-MS): Interferences

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Inductively coupled plasma–mass spectrometry (ICP–MS) is a highly selective and sensitive technique for accurate elemental analysis. Though the analysis of ICP–MS mass spectra is comparatively straightforward, it is affected by spectroscopic and non-spectroscopic interferences. Spectroscopic interferences arise when the plasma contains ionic species with an m/z value the same as the analyte ion. Spectroscopic interference can be categorized as isobaric, polyatomic ions, and...
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Carrier Generation and Recombination01:22

Carrier Generation and Recombination

1.2K
Carrier generation is the process by which electron-hole pairs (EHPs) are created within the semiconductor. In direct-bandgap semiconductors, such as gallium arsenide (GaAs), this occurs efficiently when energy absorption prompts valence electrons to leap into the conduction band, leaving behind holes.
This process is given by the generation rate G and is efficient due to the conservation of momentum between the valence band maximum and conduction band minimum.
Indirect generation involves an...
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Displacement Current01:19

Displacement Current

3.7K
Ampère's law, in its usual form, does not work in places where the current changes with time and is not steady. Thus, Maxwell suggested including an additional contribution, called the displacement current, Id, to the real conduction current I.
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Updated: Jan 17, 2026

Theoretical Calculation and Experimental Verification for Dislocation Reduction in Germanium Epitaxial Layers with Semicylindrical Voids on Silicon
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与排放点相邻的干扰位移.

J R Leonard, L H Fowler-Gerace, Zhiwen Zhou

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    此摘要是机器生成的。

    在过渡金属二甲基化物和异构结构中的激子排放中观察到干扰位移或分叉. 这些位移是由莫雷效应引起的,即使在没有连贯性的经典系统中,也会扩大它们的潜在观测范围.

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    科学领域:

    • 凝聚物质物理学 凝聚物质物理学
    • 材料科学是一种材料科学.
    • 光学是什么?光学是什么?光学是什么?

    背景情况:

    • 干扰失位通常在连贯量子系统中观察到.
    • 它们在古典系统中的出现是不太了解的.
    • 新材料中的刺激子排放为研究提供了新的途径.

    研究的目的:

    • 研究特定材料系统中干扰位移的起源和特征.
    • 为了确定干扰失调是否可以在经典的,非连贯的系统中表现出来.
    • 探索莫尔效应在产生这些位移中的作用.

    主要方法:

    • 观察单层过渡金属二二二化物中的干扰位移.
    • 范德瓦尔斯异构结构中空间间接 (层间) 激子的分析.
    • 计算模拟以建模干扰模式和失位形成.

    主要成果:

    • 在刺激子发射模式中观察到相邻的干扰位移.
    • 模拟证实莫雷效应是这些位移的原因.
    • 这些失调的形成并不需要排放元件之间的连贯性.

    结论:

    • 干扰位移可以在经典系统中观察到,而不仅仅是量子连贯状态.
    • 莫雷效应是产生空间调制模式中的干扰位移的关键机制.
    • 这一发现扩大了在各种物理系统中观察干扰位移的范围.