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Related Concept Videos

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,...

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Related Experiment Video

Updated: May 28, 2026

High-Speed Ultraviolet Photoacoustic Microscopy for Histological Imaging with Virtual-Staining assisted by Deep Learning
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High-Speed Ultraviolet Photoacoustic Microscopy for Histological Imaging with Virtual-Staining assisted by Deep Learning

Published on: April 28, 2022

Holographic UV laser microsurgery.

Aroshan K Jayasinghe, Jason Rohner, M Shane Hutson

    Biomedical Optics Express
    |October 13, 2011
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a novel UV laser ablation system using a spatial light modulator (SLM) for precise, multi-point tissue modification. The technology enables rapid, dynamic pattern generation for complex in vivo experiments on moving Drosophila embryos.

    Keywords:
    (070.6120) Spatial light modulators(090.1995) Digital holography(170.1020) Ablation of tissue

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    Area of Science:

    • Developmental Biology
    • Biophotonics
    • Surgical Technology

    Background:

    • Microsurgery often faces limitations with dynamic biological samples.
    • Precisely ablating multiple sites in living tissue is challenging.
    • Existing methods lack the speed and flexibility for real-time interventions.

    Purpose of the Study:

    • To develop a novel multi-point laser ablation system for biological research.
    • To enable precise, dynamic ablation patterns on moving specimens.
    • To overcome limitations of conventional microsurgery in developmental biology.

    Main Methods:

    • Utilized a spatial light modulator (SLM) to diffract a single UV laser pulse.
    • Generated dynamic phase holograms for user-defined ablation patterns.
    • Applied the system to Drosophila embryos for in vivo experiments.

    Main Results:

    • Successfully ablated multiple points on Drosophila embryos with a single laser pulse.
    • Demonstrated dynamic pattern generation suitable for moving tissues.
    • Performed complex microsurgical tasks including single-cell isolation and retraction measurements.

    Conclusions:

    • The single-pulse, multi-point UV laser ablation system offers unprecedented precision and speed.
    • This technology significantly advances the capabilities for in vivo microsurgery on dynamic biological systems.
    • Opens new avenues for studying cellular dynamics and developmental processes.