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Related Experiment Video

Updated: Jun 16, 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

Nonoxide chalcogenide glass films for integrated optics.

R K Watts, M de Wit, W C Holton

    Applied Optics
    |February 6, 2010
    PubMed
    Summary

    This study investigates the waveguiding properties of sputtered chalcogenide glass films, specifically As(2)S(3), Ge(28)Sb(12)Se(60), and Ge(33)As(12)Se(55). Arsenic trisulfide (As(2)S(3)) films exhibited low propagation losses below 1 dB/cm.

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    Area of Science:

    • Materials Science
    • Optoelectronics
    • Photonics

    Background:

    • Chalcogenide glasses are promising materials for optical applications due to their unique optoelectronic properties.
    • Sputtering is a versatile technique for depositing thin films with controlled stoichiometry and morphology.
    • Waveguiding in thin films is crucial for integrated optical devices and photonic circuits.

    Purpose of the Study:

    • To evaluate the waveguiding characteristics of sputtered films of three distinct chalcogenide glasses.
    • To quantify propagation losses in these films at a specific wavelength (1.064 microm).
    • To explore the fabrication and study of both continuous films and delineated waveguides.

    Main Methods:

    • Thin film deposition using sputtering.
    • Optical characterization of waveguiding properties.
    • Measurement of propagation losses using established techniques.

    Main Results:

    • Demonstrated waveguiding in sputtered films of As(2)S(3), Ge(28)Sb(12)Se(60), and Ge(33)As(12)Se(55).
    • Achieved propagation losses below 1 dB/cm for As(2)S(3) films.
    • Successfully fabricated and studied both continuous films and delineated waveguide structures.

    Conclusions:

    • Sputtered chalcogenide glass films, particularly As(2)S(3), show excellent potential for integrated optics.
    • The low propagation losses in As(2)S(3) films make them suitable for photonic applications.
    • The ability to create both films and delineated guides offers flexibility in device design.

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