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関連する概念動画

Interference and Diffraction02:18

Interference and Diffraction

52.6K
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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Singularity Functions for Shear01:26

Singularity Functions for Shear

458
In structural analysis, singularity functions are crucial in simplifying the representation of shear forces in beams under discontinuous loading. These functions describe discontinuous  variations in shear force across a beam with varying loads by using a single mathematical expression, regardless of the complexity of the loading conditions. The singularity functions are derived from creating a free-body diagram of the beam and then making conceptual cuts at specific points to examine the...
458
Singularity Functions for Bending Moment01:18

Singularity Functions for Bending Moment

577
Singularity functions simplify the representation of bending moments in beams subjected to discontinuous loading, allowing the use of a single mathematical expression. For a supported beam AB, with uniform loading from its midpoint M to the right side end B, the approach involves conceptual 'cuts' at specific points to determine the bending moment in each segment. By cutting the beam at a point between A and M, the bending moment for the segment before reaching midpoint M is represented using a...
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Limiting Reactant02:27

Limiting Reactant

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The relative amounts of reactants and products represented in a balanced chemical equation are often referred to as stoichiometric amounts. However, in reality, the reactants are not always present in the stoichiometric amounts indicated by the balanced equation.
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Molecular Shape and Polarity03:37

Molecular Shape and Polarity

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Dipole Moment of a Molecule
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The Number e as a Limit01:29

The Number e as a Limit

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The number e is a fundamental constant in calculus, playing a central role in describing continuous change, particularly exponential growth. It is most naturally defined through its relationship with the natural logarithm, which is the inverse of the exponential function with base e. This relationship allows e to be characterized using basic principles of differentiation rather than as an arbitrary numerical constant.A key property of the natural logarithm function, ln x, is that its derivative...
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関連する実験動画

Updated: Feb 15, 2026

Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing
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微分光差限界光の場は,エッジ・シングルリティ・エンジニアリングを通して形状を変化させる.

Junhui Jia, Chaoheng Guo, Haolin Lin

    Optics letters
    |February 13, 2026
    PubMed
    まとめ
    この要約は機械生成です。

    研究者らは,光場を偏光限界以下で正確に形作るための新しい技術を開発した. この方法は,超高解像度イメージングなどのアプリケーションのために任意の光パターンを作成するために,エンジニアリングされた相奇異性を使用します.

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    科学分野:

    • 光学とフォトニック
    • ライトフィールド操作 光場操作
    • サブディフラクション光学 サブディフラクション光学

    背景:

    • 微分光差の限界にある光場を制御することは,高度な画像と検出に不可欠です.
    • 既存の方法は,深層サブ波長の特徴を持つ任意の光パターン生成を達成する上で限界に直面しています.

    研究 の 目的:

    • サブdiffraction体制で光場を形作るための新しいテクニックを提案し,実証する.
    • 特徴のサイズが difraktion limit を大幅に下回る任意の光パターンの作成を可能にします.

    主な方法:

    • 横断曲線に沿って連続的に分布した相奇異性を設計する.
    • 奇点曲線を記述するための多項式関数の開発.
    • エッジ・シンギュラリティ・エンジニアリングを用いて実験的にその技術を検証する.

    主要な成果:

    • 特徴のサイズを深部サブ分散限界まで下げる任意の光パターンの生成を実証した.
    • ガウスの光の包装を望ましい形状に形づくることに成功した.
    • 実験的な実証を通じて理論的枠組みを検証しました.

    結論:

    • 提案されたテクニックは,光場が difraktion limit 以下の形状をとるための新しい経路を提供します.
    • この方法は,超高解像度画像と精密検出に潜在的応用があります.
    • エッジ・シンギュラリティ・エンジニアリングは,ナノスケールでの光パターンの正確な制御を提供します.