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Related Experiment Video

Updated: Jul 9, 2026

Electrospray Deposition of Uniform Thickness Ge23Sb7S70 and As40S60 Chalcogenide Glass Films
08:38

Electrospray Deposition of Uniform Thickness Ge23Sb7S70 and As40S60 Chalcogenide Glass Films

Published on: August 19, 2016

Photoinduced stable second-harmonic generation in chalcogenide glasses.

J Qiu, J Si, K Hirao

    Optics Letters
    |November 28, 2007
    PubMed
    Summary

    Chalcogenide glasses exhibit significant photoinduced second-harmonic generation (SHG), a nonlinear optical effect. This effect shows remarkable stability and a magnitude 10,000 times greater than tellurite glass.

    Area of Science:

    • Materials Science
    • Optics
    • Photonics

    Background:

    • Nonlinear optical phenomena are crucial for advanced photonic applications.
    • Chalcogenide glasses are promising materials for optical applications due to their unique properties.
    • Photoinduced second-order nonlinearity is a key property for frequency conversion.

    Purpose of the Study:

    • To investigate photoinduced second-harmonic generation (SHG) in chalcogenide glasses.
    • To quantify and compare the SHG efficiency in different glass compositions.
    • To assess the stability of the induced nonlinearity.

    Main Methods:

    • Utilized a nanosecond pulsed Nd:YAG laser to induce second-order nonlinearity.
    • Employed optical poling at room temperature to induce SHG.

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    Electrospray Deposition of Uniform Thickness Ge23Sb7S70 and As40S60 Chalcogenide Glass Films
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    Published on: August 19, 2016

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  • Measured and compared SHG magnitude in 20G?20A?60S glass and tellurite glass.

    • Main Results:

    • Achieved photoinduced second-harmonic generation (SHG) in chalcogenide glasses.
    • Observed SHG magnitude in 20G?20A?60S glass was 10,000 times larger than in tellurite glass.
    • Demonstrated no apparent decay of photoinduced SHG in 20G?20A?60S glass after room temperature optical poling.

    Conclusions:

    • Chalcogenide glasses exhibit exceptionally large and stable photoinduced second-order nonlinearity (chi((2))).
    • The observed properties are attributed to induced defect structures and high third-order nonlinearity (chi((3))) of the chalcogenide glasses.
    • These findings highlight the potential of chalcogenide glasses for nonlinear optical devices.