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Related Experiment Video

Updated: Jul 6, 2026

In-situ Tapering of Chalcogenide Fiber for Mid-infrared Supercontinuum Generation
09:39

In-situ Tapering of Chalcogenide Fiber for Mid-infrared Supercontinuum Generation

Published on: May 27, 2013

Low-threshold supercontinuum generation in highly nonlinear chalcogenide nanowires.

Dong-Il Yeom1, Eric C Mägi, Michael R E Lamont

  • 1ARC Centre for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS), School of Physics, University of Sydney, NSW, Australia. yeom@physics.usyd.edu.au

Optics Letters
|April 3, 2008
PubMed
Summary

We achieved low-threshold supercontinuum generation in nonlinear chalcogenide nanowires. This breakthrough enables significant spectral broadening at low peak powers, paving the way for advanced optical applications.

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Area of Science:

  • Nonlinear optics
  • Materials science
  • Nanophotonics

Background:

  • Supercontinuum generation is crucial for various photonic applications.
  • Achieving supercontinuum generation typically requires high peak powers or specialized fiber designs.
  • Chalcogenide materials offer ultrahigh nonlinearities for enhanced optical effects.

Purpose of the Study:

  • To demonstrate low-threshold supercontinuum generation in a highly nonlinear chalcogenide nanowire.
  • To engineer the dispersion properties of the nanowire for efficient nonlinear processes.
  • To achieve significant spectral broadening at reduced peak power levels.

Main Methods:

  • Fabrication of a tapered submicrometer arsenic selenide chalcogenide nanowire.
  • Characterization of the nanowire's nonlinear optical properties, including nonlinearity (n2) and effective mode area (Aeff).

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Last Updated: Jul 6, 2026

In-situ Tapering of Chalcogenide Fiber for Mid-infrared Supercontinuum Generation
09:39

In-situ Tapering of Chalcogenide Fiber for Mid-infrared Supercontinuum Generation

Published on: May 27, 2013

Synthesis of Hierarchical ZnO/CdSSe Heterostructure Nanotrees
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  • Experimental demonstration of supercontinuum generation using the engineered nanowire and analysis of spectral broadening.

    • Main Results:

    • The chalcogenide nanowire exhibited an ultrahigh nonlinearity (n2 ≈ 1.1x10(-17) m(2)/W) and small effective mode area (Aeff ≈ 0.48 μm(2)).
    • An effective nonlinearity (γ ≈ 93.4 W/m) over 80,000 times greater than standard silica fiber was achieved at 1550 nm.
    • Low-threshold supercontinuum generation was observed, driven by soliton fission, with significant spectral broadening at peak powers of several watts (picojoule energy).

    Conclusions:

    • Highly nonlinear chalcogenide nanowires with tailored dispersion are effective for low-threshold supercontinuum generation.
    • Engineered dispersion and ultrahigh nonlinearity enable efficient nonlinear processes at significantly reduced optical powers.
    • This work presents a promising platform for compact and efficient supercontinuum sources for diverse applications.