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Related Experiment Video

Updated: Jun 22, 2026

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2
11:27

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2

Published on: December 8, 2016

Large dynamic range photon detector with a temperature-stabilized Si-based multi-pixel photon counter.

Minsoo Song, Eunil Won, Tai Hyun Yoon

    Optics Express
    |June 25, 2009
    PubMed
    Summary

    We developed a cooled silicon multi-pixel photon counter for sensitive fluorescence detection. This device offers high signal-to-noise ratio for detecting ytterbium atomic transitions.

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    Area of Science:

    • Atomic Physics
    • Optical Detection Technology

    Background:

    • Efficient fluorescence detection is crucial for atomic physics experiments.
    • Existing detectors may have limitations in dynamic range, noise, or sensitivity.

    Purpose of the Study:

    • To present an efficient, temperature-stabilized fluorescence detector for visible light.
    • To evaluate the performance of a silicon multi-pixel photon counter (Si-MPPC) for detecting ytterbium atomic transitions.

    Main Methods:

    • Utilized a temperature-stabilized, Si-based multi-pixel photon counter cooled to 5°C.
    • Employed a compact thermo-electric cooler to enhance detector performance.
    • Measured fluorescence at 398.9 nm from ytterbium atoms in an effusive atomic beam.
    • Compared detector efficiency against a side-on photo-multiplier tube.

    Related Experiment Videos

    Last Updated: Jun 22, 2026

    Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2
    11:27

    Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2

    Published on: December 8, 2016

    Main Results:

    • Achieved a photon detection dynamic range exceeding 10^6 photons/s.
    • Demonstrated high gain, low dark noise rate, and high signal-to-noise ratio.
    • Showcased efficient fluorescence detection of the (1)S(0) ? (1)P(1) transition in ytterbium atoms.

    Conclusions:

    • Effective cooling of Si-MPPCs significantly improves performance for fluorescence detection.
    • The developed detector is highly suitable for sensitive optical measurements in atomic physics.
    • The Si-MPPC shows competitive or superior performance compared to traditional photo-multiplier tubes.