関連する実験動画

Updated: Feb 15, 2026

Phase Contrast and Differential Interference Contrast DIC Microscopy
06:49

Phase Contrast and Differential Interference Contrast DIC Microscopy

Published on: August 6, 2008

54.1K

相対照調節によるフーリエ抽象顕微鏡におけるマッチング照明の課題を克服する

Ying Ma, Taiqiang Dai, Hongyan Ma

    Optics letters
    |February 13, 2026
    PubMed
    まとめ

    段階対比変調 (PCM-FPM) を用いたフーリエ光学顕微鏡 (FPM) は,高NAオブジェクトの照明限界を克服します. この新しい方法は,よりよい詳細回収のために低周波情報を強度変数にコーディングすることにより,相画像を改善します.

    さらに関連する動画

    Highly Resolved Intravital Striped-illumination Microscopy of Germinal Centers10:07

    Highly Resolved Intravital Striped-illumination Microscopy of Germinal Centers

    Published on: April 9, 2014

    10.6K
    Single Plane Illumination Module and Micro-capillary Approach for a Wide-field Microscope08:53

    Single Plane Illumination Module and Micro-capillary Approach for a Wide-field Microscope

    Published on: August 15, 2014

    10.1K

    関連する概念動画

    Phase Contrast and Differential Interference Contrast Microscopy01:26

    Phase Contrast and Differential Interference Contrast Microscopy

    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...
    14.4K
    Sign Test for Matched Pairs01:17

    Sign Test for Matched Pairs

    The sign test for matched pairs offers a robust method for comparing two paired samples, often for the effects of an intervention in one of them. This method is very useful in situations where the underlying distribution of the data is unknown. The test compares two related samples—often pre- and post-treatment measurements on the same subjects—to determine if there are significant differences in their median values.
    To conduct the sign test, we first calculate the differences in...
    432
    Phase Transitions: Melting and Freezing02:39

    Phase Transitions: Melting and Freezing

    Heating a crystalline solid increases the average energy of its atoms, molecules, or ions, and the solid gets hotter. At some point, the added energy becomes large enough to partially overcome the forces holding the molecules or ions of the solid in their fixed positions, and the solid begins the process of transitioning to the liquid state or melting. At this point, the temperature of the solid stops rising, despite the continual input of heat, and it remains constant until all of the solid is...
    15.3K
    Phase Transitions: Vaporization and Condensation02:39

    Phase Transitions: Vaporization and Condensation

    The physical form of a substance changes on changing its temperature. For example, raising the temperature of a liquid causes the liquid to vaporize (convert into vapor). The process is called vaporization—a surface phenomenon. Vaporization occurs when the thermal motion of the molecules overcome the intermolecular forces, and the molecules (at the surface) escape into the gaseous state. When a liquid vaporizes in a closed container, gas molecules cannot escape. As these gas phase molecules...
    21.6K
    Phase Transitions: Sublimation and Deposition02:33

    Phase Transitions: Sublimation and Deposition

    Some solids can transition directly into the gaseous state, bypassing the liquid state, via a process known as sublimation. At room temperature and standard pressure, a piece of dry ice (solid CO2) sublimes, appearing to gradually disappear without ever forming any liquid. Snow and ice sublimate at temperatures below the melting point of water, a slow process that may be accelerated by winds and the reduced atmospheric pressures at high altitudes. When solid iodine is warmed, the solid sublimes...
    20.4K
    Trigonometric Fourier series01:17

    Trigonometric Fourier series

    Fourier series is a foundational mathematical technique that decomposes periodic functions into an infinite series of sinusoidal harmonics. This method enables the representation of complex periodic signals as sums of simple sine and cosine functions, facilitating their analysis and interpretation in various fields, including signal processing, acoustics, and electrical engineering.
    The trigonometric Fourier series specifically expresses a periodic function with a defined period T using sine...
    838