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Atomic Emission Spectroscopy: Lab01:29

Atomic Emission Spectroscopy: Lab

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AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
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Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle01:19

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Atomic Absorption Spectroscopy: Radiation and Light Sources01:13

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Updated: Aug 26, 2025

Generation and Coherent Control of Pulsed Quantum Frequency Combs
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Published on: June 8, 2018

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Photon-pair generation from a chip-scale Cs atomic vapor cell.

Heewoo Kim, Jiho Park, Hyun-Gue Hong

    Optics Express
    |October 13, 2022
    PubMed
    Summary
    This summary is machine-generated.

    Researchers developed a narrowband photonic quantum source using a cesium (Cs) atomic vapor cell. This atom-photon interaction source shows promise for scalable quantum networks.

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    Area of Science:

    • Quantum Information Science
    • Atomic Physics
    • Photonics

    Background:

    • Narrowband photonic quantum sources are crucial for advancing quantum information science.
    • Atomic devices offer a promising platform for developing practical quantum sources.

    Purpose of the Study:

    • To demonstrate a photon-pair source based on a microfabricated cesium atomic vapor cell.
    • To investigate the potential of atom-photon interactions for quantum networking.

    Main Methods:

    • Utilized spontaneous four-wave mixing in a millimeter-scale cesium vapor cell.
    • Employed the cascade-type 6S1/2-6P3/2-8S1/2 transition of 133Cs.
    • Measured time-correlated photon pairs and normalized cross-correlation values.

    Main Results:

    • Achieved time-correlated photon pairs from a cesium atomic vapor cell.
    • Measured a maximum normalized cross-correlation value of 622(8) at low pump power (10 µW).
    • Violated the Cauchy-Schwartz inequality by a factor exceeding 105.

    Conclusions:

    • The developed photon-pair source is a significant step towards practical quantum information technologies.
    • This approach holds potential for realizing scalable quantum networks leveraging atom-photon interactions.