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関連する概念動画

Automated 3D Optical Coherence Tomography to Elucidate Biofilm Morphogenesis Over Large Spatial Scales09:56

Automated 3D Optical Coherence Tomography to Elucidate Biofilm Morphogenesis Over Large Spatial Scales

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Microbial biofilms form complex architectures at interphases and develop into highly scale-dependent spatial patterns. Here, we introduce an experimental system (hard- and software) for the automated acquisition of 3D optical coherence tomography (OCT) datasets. This toolset allows the non-invasive and multi-scale characterization of biofilm morphogenesis in space and...
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Using Optical Tweezers for the Generation of Hybrid Spheroids12:11

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In this paper, we propose a protocol for hybrid spheroid manufacturing using optical tweezers. This method allows precise control of the early stages of the spheroid formation process, which is unattainable by other methods.
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Here, we describe the operation of a SiN integrated photonic circuit containing optical phased arrays. The circuits are used to emit low divergence laser beams in the near infrared and steer them in two...
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Optical tweezers have been used to study RNA folding by stretching individual molecules from their 5’ and 3’ ends. Here common procedures are described to synthesize RNA molecules for tweezing, calibration of the instrument, and methods to manipulate single molecules.
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Here, we describe the use of spectral-domain optical coherence tomography (SD-OCT) to visualize retinal and ocular structures in vivo in models of retinal degeneration, glaucoma, diabetic retinopathy, and...
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This paper highlights the optical coherence elastography (OCE) technique's efficacy in rapidly and non-destructively characterizing biofilm elastic properties. We elucidate critical OCE implementation procedures for accurate measurements and present Young's modulus values for two granular...
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関連する実験動画

Updated: Jan 19, 2026

Automated 3D Optical Coherence Tomography to Elucidate Biofilm Morphogenesis Over Large Spatial Scales
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ピンチ配列の光学クロックトランジションにおける二次スケールコヘランス

Matthew A Norcia1, Aaron W Young1, William J Eckner1

  • 1JILA, University of Colorado and National Institute of Standards and Technology, and Department of Physics, University of Colorado, Boulder, CO 80309, USA.

Science (New York, N.Y.)
|September 14, 2019
PubMed
まとめ

この研究は,精密な原子時計測定のための光学ピンチ配列を導入します. これらの配列は単一のイオンと中性原子の組み合わせの利点を組み合わせ,高度な計測のための高一貫性と安定性を達成します.

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関連する実験動画

Last Updated: Jan 19, 2026

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科学分野:

  • 原子物理学
  • 量子メトロロジー
  • 光学原子時計

背景:

  • 正確な周波数計測には,光学的移行の一貫した制御が不可欠です.
  • 光学的な原子時計は,単一のイオンまたは中性原子を組み合わせて,レーザー周波数を安定させます.
  • 既存の方法は精度とスケーラビリティの組み合わせに 限界があります

研究 の 目的:

  • シングルイオンと中性原子のアプローチの強みを組み合わせた新しいプラットフォームを実証します.
  • ストロンチウム原子の一貫した制御のための光学ピンチ配列を使用します.
  • このプラットフォームの性能を測定する.

主な方法:

  • 光学ピンチに閉じ込められた 個々のストロンチウム原子の配列
  • これらの原子配列内の光学的移行の尋問.
  • 重複した尋問で 高い動作周期を達成する.

主要な成果:

  • 3.4秒のコヒーレンスタイムを達成しました.
  • 単一のセットの動作サイクルが 96%まで証明されている.
  • 周波数安定性は4.7 × 10−16 (τ/s) −1/2と報告されている.

結論:

  • 光学ピンチ配列は 一貫した制御のための強力な新しいツールを提供します.
  • このプラットフォームは精密計測学にとって有望なものです
  • このアプローチは量子情報科学にも適用できます