Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

Phase Contrast and Differential Interference Contrast Microscopy01:26

Phase Contrast and Differential Interference Contrast Microscopy

9.5K
Phase-Contrast Microscopes
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
9.5K
X-ray Imaging01:24

X-ray Imaging

7.0K
German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with...
7.0K
Atomic Emission Spectroscopy: Interference01:30

Atomic Emission Spectroscopy: Interference

272
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,...
272
Atomic Emission Spectroscopy: Overview01:20

Atomic Emission Spectroscopy: Overview

2.5K
Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...
2.5K
Atomic Emission Spectroscopy: Lab01:29

Atomic Emission Spectroscopy: Lab

243
AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
243
Atomic Nuclei: Magnetic Resonance01:05

Atomic Nuclei: Magnetic Resonance

752
The number of nuclear spins aligned in the lower energy state is slightly greater than those in the higher energy state. In the presence of an external magnetic field, as the spins precess at the Larmor frequency, the excess population results in a net magnetization oriented along the z axis. When a pulse or a short burst of radio waves at the Larmor frequency is applied along the x axis, the coupling of frequencies causes resonance and flips the nuclear spins of the excess population from the...
752

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

Shapiro steps in strongly-interacting Fermi gases.

Science (New York, N.Y.)·2025
Same author

Mutual friction and vortex Hall angle in a strongly interacting Fermi superfluid.

Nature communications·2025
Same author

Field and intensity correlations: the Siegert relation from stars to quantum emitters.

The European physical journal. D, Atomic, molecular, and optical physics·2022
関連記事をすべて見る

関連する実験動画

Updated: Sep 10, 2025

Quantitative Optical Microscopy: Measurement of Cellular Biophysical Features with a Standard Optical Microscope
14:09

Quantitative Optical Microscopy: Measurement of Cellular Biophysical Features with a Standard Optical Microscope

Published on: April 7, 2014

15.7K

密集した原子雲の相対比画像

M Frometa1,2, P G Santos Dias3, P H Nantes Magnani3

  • 1Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos SP 13566-970, Brazil.

The Review of scientific instruments
|August 27, 2025
PubMed
まとめ

フェーズコントラストイメージング (PCI) は,密度の高い雲の原子密度プロフィールを確実に再構築します. 空間光調節器によって強化されたこの技術は,高密度でも正確であることが証明され,飛行時間測定によって検証されています.

さらに関連する動画

Microfluidic Imaging Flow Cytometry by Asymmetric-detection Time-stretch Optical Microscopy ATOM
07:19

Microfluidic Imaging Flow Cytometry by Asymmetric-detection Time-stretch Optical Microscopy ATOM

Published on: June 28, 2017

10.4K
Electron Channeling Contrast Imaging for Rapid III-V Heteroepitaxial Characterization
07:50

Electron Channeling Contrast Imaging for Rapid III-V Heteroepitaxial Characterization

Published on: July 17, 2015

11.1K

関連する実験動画

Last Updated: Sep 10, 2025

Quantitative Optical Microscopy: Measurement of Cellular Biophysical Features with a Standard Optical Microscope
14:09

Quantitative Optical Microscopy: Measurement of Cellular Biophysical Features with a Standard Optical Microscope

Published on: April 7, 2014

15.7K
Microfluidic Imaging Flow Cytometry by Asymmetric-detection Time-stretch Optical Microscopy ATOM
07:19

Microfluidic Imaging Flow Cytometry by Asymmetric-detection Time-stretch Optical Microscopy ATOM

Published on: June 28, 2017

10.4K
Electron Channeling Contrast Imaging for Rapid III-V Heteroepitaxial Characterization
07:50

Electron Channeling Contrast Imaging for Rapid III-V Heteroepitaxial Characterization

Published on: July 17, 2015

11.1K

科学分野:

  • 原子物理学
  • 光学イメージング

背景:

  • 密度の高い原子雲の特徴は 量子シミュレーションと原子光学にとって重要です
  • 従来のイメージング方法は 高い光学深さと空間密度で苦労します
  • 段階対照画像 (PCI) は,インシット密度測定のための潜在的な解決策を提供します.

研究 の 目的:

  • 密集した原子雲の相対比画像 (PCI) の信頼性を実証する.
  • 極端な空間と光学密度下でのPCIの精度を調査する.
  • PCIにおける原子反応に対する集団効果の影響を調査する.

主な方法:

  • フレキシブルなパラメータ制御のための空間光調節器を備えた相対照イメージング (PCI) を利用した.
  • 実験的に,高空間密度 (7.9 × 10 ^ 13 原子/cm ^ 3) と光学深さ (最大 64 原子) を有する濃厚な冷たい原子雲を作成した.
  • 密度の高い状態での単原子極性化モデルの精度を定量化し,PCI結果を飛行時間測定と比較した.

主要な成果:

  • PCIは,高密度の原子サンプルのための密度プロフィールを現地で成功裏に再構築しました.
  • 実験条件に適応する能力を示した.
  • 最大密度でも,PCIと飛行時間測定の間の優れた一致が達成されました.

結論:

  • フェーズコントラストイメージング (PCI) は,密度の高い原子雲を特徴付けるための信頼性の高い多用途ツールです.
  • 空間光調節器の使用により,PCIの柔軟性と適応性が向上します.
  • PCIは,集団的な効果が有意であるかもしれないシステムで正確な密度測定を提供します.