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Related Concept Videos

Raman Spectroscopy Instrumentation: Overview01:26

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A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
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Intracavity Raman conversion of a red semiconductor disk laser using diamond.

Peter J Schlosser, Daniele C Parrotta, Vasili G Savitski

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    We developed a diamond Raman laser pumped by a red semiconductor laser, achieving 82 mW output power at 740 nm. This laser system is tunable between 736-750 nm.

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    Area of Science:

    • Laser Physics
    • Materials Science

    Background:

    • Diamond Raman lasers offer potential for visible light generation.
    • Intracavity pumping schemes can enhance laser efficiency.

    Purpose of the Study:

    • To demonstrate a diamond Raman laser intracavity-pumped by a red semiconductor disk laser.
    • To characterize the output power and tunability of the system.

    Main Methods:

    • Utilized a red semiconductor disk laser (~675 nm) as the pump source.
    • Employed a diamond crystal within the laser cavity for Raman conversion.
    • Investigated output coupling and wavelength tuning capabilities.

    Main Results:

    • Achieved laser emission at approximately 740 nm.
    • Generated up to 82 mW of output power for the Stokes-shifted field.
    • Demonstrated wavelength tunability from 736 nm to 750 nm.

    Conclusions:

    • Intracavity pumping of diamond Raman lasers with semiconductor lasers is feasible.
    • The developed system shows promise for tunable visible light sources.
    • Output power is currently limited by available pump power.