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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,...

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Related Experiment Video

Updated: Jun 19, 2026

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
12:57

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Published on: October 13, 2017

Phase-conjugated XeCl laser resonator.

M R Perrone, Y B Yao

    Optics Letters
    |October 22, 2009
    PubMed
    Summary
    This summary is machine-generated.

    Self-Q switching was demonstrated in a Xenon Chloride (XeCl) laser using a stimulated Brillouin scattering phase-conjugate reflector. This method achieved high-quality laser pulses with narrow spectral lines.

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    Last Updated: Jun 19, 2026

    Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
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    Published on: October 13, 2017

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    Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

    Published on: January 28, 2019

    Area of Science:

    • Laser Physics
    • Nonlinear Optics
    • Quantum Electronics

    Background:

    • Excimer lasers, such as Xenon Chloride (XeCl), are crucial for various applications.
    • Achieving high-quality, pulsed laser output often requires advanced switching techniques.
    • Stimulated Brillouin scattering (SBS) offers a pathway for phase conjugation and beam cleanup.

    Purpose of the Study:

    • To demonstrate self-Q switching in a XeCl laser system.
    • To investigate the performance of an SBS phase-conjugate reflector within the laser resonator.
    • To characterize the energy, duration, divergence, and spectral properties of the generated laser pulses.

    Main Methods:

    • Integration of a stimulated-Brillouin-scattering (SBS) phase-conjugate reflector into the XeCl laser resonator.
    • Experimental setup for self-Q switching operation.
    • Measurement of laser pulse energy, duration, beam divergence, and spectral characteristics.

    Main Results:

    • Successful demonstration of self-Q switching in the XeCl laser.
    • Generation of Q-switched laser pulses with 0.2-mJ energy and 2.5-ns duration.
    • Achieved laser beam divergence close to the diffraction limit.
    • Observed spectral narrowing of the strong XeCl laser lines at 307.98 nm and 308.19 nm.

    Conclusions:

    • Self-Q switching using an SBS phase-conjugate reflector is an effective method for improving XeCl laser performance.
    • The technique yields high-quality laser pulses with excellent beam quality and spectral purity.
    • This approach holds potential for applications requiring high-energy, short-duration, and spectrally narrow laser pulses.