相关实验视频

Updated: May 30, 2025

Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy oSLO and Optical Coherence Tomography OCT
12:22

Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy oSLO and Optical Coherence Tomography OCT

Published on: August 4, 2018

8.5K

扫描源可见光光学连贯性断层扫描,可见光光学连贯性断层扫描

Weijia Fan, Roman Kuranov, David A Miller

    Optics letters
    |January 31, 2025
    PubMed
    概括

    我们通过转换近红外激光器开发了扫描可见光源光学相干断层扫描 (SS-vs-OCT). 这种新的SS-vs-OCT成像为生物组织可视化提供了更深的深度和更好的性能.

    更多相关视频

    Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography11:21

    Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography

    Published on: January 15, 2013

    11.5K
    Doppler Optical Coherence Tomography of Retinal Circulation10:46

    Doppler Optical Coherence Tomography of Retinal Circulation

    Published on: September 18, 2012

    18.6K

    相关概念视频

    Computed Tomography01:10

    Computed Tomography

    Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
    The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
    4.2K
    Imaging Biological Samples with Optical Microscopy01:18

    Imaging Biological Samples with Optical Microscopy

    Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
    In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
    4.6K
    Total Internal Reflection Fluorescence Microscopy01:05

    Total Internal Reflection Fluorescence Microscopy

    Total internal reflection fluorescence microscopy or TIRF is an advanced microscopic technique used to visualize fluorophores in samples close to a solid surface with a higher refractive index, such as a glass coverslip. TIRF only allows fluorophores in proximity to the solid surface to be excited. When light from a medium with a lower refractive index (such as air) hits the glass coverslip at a critical angle, the light undergoes total internal reflection stead of passing through the glass.
    5.6K
    Electron Microscope Tomography and Single-particle Reconstruction01:07

    Electron Microscope Tomography and Single-particle Reconstruction

    Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
    Electron Tomography
    Electron tomography can be performed either in TEM or STEM (scanning transmission...
    2.3K
    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...
    7.4K
    Confocal Fluorescence Microscopy01:16

    Confocal Fluorescence Microscopy

    Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
    13.0K