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Related Experiment Video

Updated: Jan 19, 2026

Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications
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Continuously tunable polymer membrane laser.

Alex Berdin, Heikki Rekola, Oksana Sakhno

    Optics Express
    |September 13, 2019
    PubMed
    Summary
    This summary is machine-generated.

    Researchers developed flexible organic lasers with a 77 nm tuning range by adding plasticizers and reducing laser thickness. This breakthrough extends the wavelength tunability of distributed feedback (DFB) lasers for tunable coherent light sources.

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    Area of Science:

    • Optics and Photonics
    • Materials Science
    • Organic Electronics

    Background:

    • Flexible organic distributed feedback (DFB) lasers offer tunable coherent light sources.
    • Current DFB laser devices have limited continuous wavelength tuning ranges.

    Purpose of the Study:

    • To extend the wavelength tuning range of thin-film organic DFB lasers.
    • To investigate the impact of plasticizers and reduced thickness on laser performance.

    Main Methods:

    • Incorporation of plasticizers into the elastomeric polymer matrix.
    • Minimization of the DFB laser device thickness.
    • Utilizing a contact-transfer method for device fabrication.
    • Mechanical stretching of a silicone support film with the DFB laser.

    Main Results:

    • Achieved an extended wavelength tuning range of up to 77 nm.
    • Tuning occurred within the orange-red spectral range of a single laser dye.
    • Demonstrated successful transfer of ultra-thin membrane DFB lasers.

    Conclusions:

    • Plasticizers and minimized thickness enhance mechanical flexibility and reduce impact.
    • Extended tuning range covers the full gain range of the active medium.
    • This method enables broadly tunable, flexible coherent light sources.