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Supercontinuum generation in angle-etched diamond waveguides.

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    Summary
    This summary is machine-generated.

    We achieved on-chip supercontinuum generation in visible light using angle-etched diamond waveguides. This technique shows promise for future ultraviolet supercontinuum generation.

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    Area of Science:

    • Photonics
    • Materials Science
    • Optics

    Background:

    • Supercontinuum generation is crucial for various optical applications.
    • Diamond's unique optical properties, including its wide transparency window, make it a promising material for nonlinear optics.
    • On-chip integration of nonlinear optical processes is highly desirable for miniaturized devices.

    Purpose of the Study:

    • To demonstrate on-chip supercontinuum generation in the visible spectrum using angle-etched diamond waveguides.
    • To characterize the generated supercontinuum spectrum and assess the performance of the diamond waveguides.
    • To explore the potential of this approach for extending supercontinuum generation into the ultraviolet region.

    Main Methods:

    • Fabrication of angle-etched diamond waveguides.
    • Experimental setup for supercontinuum generation using femtosecond pulses.
    • Spectral characterization of the output using an optical spectrometer.

    Main Results:

    • Successful generation of a supercontinuum spanning 670-920 nm in a 5-mm-long diamond waveguide.
    • Achieved with low incident pulse energy (187 pJ) and short pulse duration (100 fs).
    • Demonstrated the viability of angle-etched diamond for broadband light generation.

    Conclusions:

    • On-chip visible supercontinuum generation is feasible in angle-etched diamond waveguides.
    • The fabrication method and material properties are suitable for broadband light sources.
    • This work paves the way for potential UV supercontinuum generation using diamond-based photonic devices.