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関連する概念動画

Atomic Emission Spectroscopy: Instrumentation01:22

Atomic Emission Spectroscopy: Instrumentation

1.3K
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.
1.3K
Generating Electromagnetic Radiations01:10

Generating Electromagnetic Radiations

7.4K
The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in...
7.4K
Atomic Absorption Spectroscopy: Radiation and Light Sources01:13

Atomic Absorption Spectroscopy: Radiation and Light Sources

1.3K
Atomic absorption spectroscopy (AAS) relies on the Beer-Lambert law, which requires that the radiation source emits a narrow range of wavelengths to match the absorption characteristics of the analyte atom. The primary criteria for choosing an appropriate radiation source in AAS is to provide a precise and intense emission at specific wavelengths that will allow accurate detection of the analyte.
Two common narrow-range 'line' sources used in AAS are hollow-cathode lamps (HCLs) and...
1.3K
Atomic Emission Spectroscopy: Interference01:30

Atomic Emission Spectroscopy: Interference

669
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,...
669
Momentum And Radiation Pressure01:20

Momentum And Radiation Pressure

2.5K
An object absorbing an electromagnetic wave would experience a force in the direction of propagation of the wave. This force occurs because electromagnetic waves contain and transport momentum. The force accounts for the wave's radiation pressure exerted on the object. Maxwell's prediction was confirmed in 1903 by Nichols and Hull by precisely measuring radiation pressures with a torsion balance. The measuring instrument had mirrors suspended from a fiber kept inside a glass container.
2.5K
Emission Spectra02:39

Emission Spectra

76.8K
When solids, liquids, or condensed gases are heated sufficiently, they radiate some of the excess energy as light. Photons produced in this manner have a range of energies, and thereby produce a continuous spectrum in which an unbroken series of wavelengths is present.
76.8K

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関連する実験動画

Updated: Feb 19, 2026

Spatial Separation of Molecular Conformers and Clusters
10:37

Spatial Separation of Molecular Conformers and Clusters

Published on: January 9, 2014

11.8K

実験的に,真空の変動を放射源から分離した.

Alexa Herter1, Frieder Lindel2,3,4, Laura Gabriel5

  • 1Institute of Quantum Electronics, ETH Zürich, Zürich, Switzerland. alexa.herter@web.de.

Nature communications
|February 17, 2026
PubMed
まとめ
この要約は機械生成です。

研究者は実験的にレーザーパルスを使用して真空場と放射源の効果を区別しました. この画期的な発見は,量子変動-分散定理を検証し,量子光学の新しい研究を可能にします.

さらに関連する動画

Quantitative Analysis of Vacuum Induction Melting by Laser-induced Breakdown Spectroscopy
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Quantitative Analysis of Vacuum Induction Melting by Laser-induced Breakdown Spectroscopy

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Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
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Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

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関連する実験動画

Last Updated: Feb 19, 2026

Spatial Separation of Molecular Conformers and Clusters
10:37

Spatial Separation of Molecular Conformers and Clusters

Published on: January 9, 2014

11.8K
Quantitative Analysis of Vacuum Induction Melting by Laser-induced Breakdown Spectroscopy
03:49

Quantitative Analysis of Vacuum Induction Melting by Laser-induced Breakdown Spectroscopy

Published on: June 10, 2019

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Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
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科学分野:

  • 量子光学とは,量子光学である.
  • 量子場論は量子場論である.
  • 超高速光学について

背景:

  • 真空場効果と放射源効果を区別することは,理論的には難しい.
  • フェルミの2原子問題により,原子と電磁場の相互作用について理論的な洞察が得られます.
  • 実験的アプローチは以前は実現不可能と考えられていた.

研究 の 目的:

  • 実験的に真空場効果と放射源効果を区別する.
  • 真空の変動と源放射線によって誘発される量子相関を探求する.
  • タイム・ドメインの変動-分散定理を実験的に検証する.

主な方法:

  • 超高速光学を用いて,フェルミの二原子問題の実験的な類似点を作成する.
  • 非線形結晶に2つのレーザーパルスを使用します.
  • 段階感知検出を使用して,近赤外線パルスの明確な二乗を検知します.

主要な成果:

  • レーザーパルス間の真空と放射源による相関を成功裏に検出しました.
  • 真空の変動と源放射線が異なるパルス四角関数と相関することを実証した.
  • 量子レベルで時間領域の変動-分散定理の実験的検証を提供した.

結論:

  • この研究では,実験的に真空と放射源の効果を分離しています.
  • 時間を依存する媒体の量子放射線を研究するための新しい道を開く.
  • アナログのカーブされた時空におけるエンタグメントの収穫と量子場検出を可能にします.