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Related Concept Videos

Overview of Microscopy Techniques01:22

Overview of Microscopy Techniques

The early pioneers of microscopy opened a window into the invisible world of microorganisms. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes that leveraged nonvisible light, such as fluorescence microscopy that uses an ultraviolet light source and electron microscopy that uses short-wavelength electron beams. These advances significantly improved magnification, image resolution, and contrast. By comparison, the...
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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,...
Scanning Electron Microscopy01:07

Scanning Electron Microscopy

A scanning electron microscope (SEM) is used to study the surface features of a sample by using an electron beam that scans the sample surface in a two-dimensional manner. Typically, areas between ~1 centimeter to 5 micrometers in width can be imaged. SEM can be used to image bacteria, viruses, tissues as well as larger samples like insects. Conventional SEM gives a magnification ranging from 20X to 30,000X and spatial resolution of 50 to 100 nanometers.
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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...

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Real-Time, Two-Color Stimulated Raman Scattering Imaging of Mouse Brain for Tissue Diagnosis
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Resonant scanning optical microscope.

C J Sheppard, R Kompfner

    Applied Optics
    |March 6, 2010
    PubMed
    Summary
    This summary is machine-generated.

    Placing objects in a resonant cavity enhances nonlinear interactions in scanning optical microscopes. This study explores primary radiation resonance and practical designs for resonant scanning optical microscopes.

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    Implementation of a Nonlinear Microscope Based on Stimulated Raman Scattering
    09:13

    Implementation of a Nonlinear Microscope Based on Stimulated Raman Scattering

    Published on: July 6, 2019

    Area of Science:

    • Optics and Photonics
    • Microscopy Techniques
    • Nonlinear Optics

    Background:

    • Scanning optical microscopy (SOM) is a powerful imaging tool.
    • Nonlinear optical interactions can provide enhanced contrast and resolution.
    • Integrating resonant cavities into SOM systems is an emerging area of research.

    Purpose of the Study:

    • To investigate the enhancement of nonlinear optical interactions in SOM by utilizing resonant cavities.
    • To analyze the impact of primary radiation resonance on these enhanced interactions.
    • To propose practical geometrical configurations for a resonant scanning optical microscope (RSOM).

    Main Methods:

    • Theoretical analysis of nonlinear optical phenomena within a resonant cavity.
    • Modeling the interaction of primary radiation with the sample inside the cavity.
    • Exploring different cavity designs and their influence on signal generation.

    Main Results:

    • Significant enhancement of nonlinear optical signals is achieved by placing the object within a resonant cavity.
    • The resonance of the primary radiation further amplifies the nonlinear interactions.
    • Specific geometrical arrangements are identified as effective for RSOM implementation.

    Conclusions:

    • Resonant cavities offer a promising approach to boost nonlinear interactions in scanning optical microscopy.
    • RSOM systems have the potential for improved imaging capabilities.
    • Further development of RSOM geometries can lead to advanced microscopy tools.