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Related Concept Videos

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...
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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...
Overview of Electron Microscopy01:25

Overview of Electron Microscopy

The wavelengths of visible light ultimately limit the maximum theoretical resolution of images created by light microscopes. Most light microscopes can only magnify 1000X, and a few can magnify up to 1500X. Electrons, like electromagnetic radiation, can behave like waves, but with wavelengths of 0.005 nm, they produce significantly greater resolution up to 0.05 nm as compared to 500 nm for visible light. An electron microscope (EM) can create a sharp image that is magnified up to 2,000,000X.

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Related Experiment Video

Updated: Jun 17, 2026

Multimodal Imaging and Spectroscopy Fiber-bundle Microendoscopy Platform for Non-invasive, In Vivo Tissue Analysis
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Published on: October 17, 2016

Image dissection and conversion at nonvisible wavelengths.

N H Farhat, B J Levin

    Applied Optics
    |January 16, 2010
    PubMed
    Summary
    This summary is machine-generated.

    A novel passive image dissection method uses resonance absorption in a semiconductor and piezoelectric transducer array to visualize far-infrared radiation. This technique offers a new approach for imaging in specific optical applications.

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    Digital Inline Holographic Microscopy (DIHM) of Weakly-scattering Subjects
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    Digital Inline Holographic Microscopy (DIHM) of Weakly-scattering Subjects
    10:16

    Digital Inline Holographic Microscopy (DIHM) of Weakly-scattering Subjects

    Published on: February 8, 2014

    Area of Science:

    • Optics and Photonics
    • Infrared Imaging
    • Materials Science

    Background:

    • Current methods for passive image dissection in millimeter, submillimeter, and far-infrared (FIR) ranges have limitations.
    • Visualizing images formed by FIR radiation requires specialized techniques due to the nature of the radiation.

    Purpose of the Study:

    • To propose and theoretically analyze a new method for passive image dissection.
    • To enable visualization of images formed by millimeter, submillimeter, and FIR radiation.
    • To compare the proposed method's characteristics with existing passive image dissection techniques.

    Main Methods:

    • The method utilizes resonance absorption of incident radiant energy.
    • An interferometric structure comprising a semiconductor panel and a planar array of sequentially addressable piezoelectric transducers is employed.
    • Governing equations for the device's behavior are derived.

    Main Results:

    • Theoretical analysis reveals unique and beneficial qualities of the proposed device.
    • The derived equations allow for a detailed comparison with existing passive image dissection methods.
    • Experimental verification confirms the theoretical predictions.

    Conclusions:

    • The proposed passive image dissection method is theoretically sound and experimentally validated.
    • This technique offers a promising new approach for imaging in the millimeter, submillimeter, and FIR spectrum.
    • The device's characteristics demonstrate its potential utility in relevant optical applications.