TY - JOUR

T1 - Production of highly aligned microfiber bundles from polymethyl methacrylate via stable jet electrospinning for organic solid-state lasers

AU - Christ, Henrik Alexander

AU - Ang, Pen Yiao

AU - Li, Fuzhao

AU - Johannes, Hans Hermann

AU - Kowalsky, Wolfgang

AU - Menzel, Henning

N1 - Funding Information: The project was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy within the Cluster of Excellence PhoenixD (EXC 2122, Project ID 390833453) and DFG‐project PolySens, AOBJ: 654666. Funding information Acknowledgment:: We thank Simone Schulze, ICTV TU Braunschweig for SEM measurements. Henrik-Alexander Christ and Pen Yiao Ang would like to thank Henrike Ehrhorn for throwing a great farewell party that connected us and sparked the idea for this project. Henrik-Alexander Christ and Pen Yiao Ang contributed equally. Open Access funding enabled and organized by Projekt DEAL.

PY - 2022/2/15

Y1 - 2022/2/15

N2 - The fabrication of micron-sized poly(methyl methacrylate) (PMMA) polymer optical fibers doped with rhodamine B as an organic dye is demonstrated. Highly aligned and defect-free fibers are fabricated by using the stable jet electrospinning (SJES) method and systematically varying critical parameters such as solvent type and polymer concentration. At optimal conditions, for example, a polymer concentration of 35 wt% of PMMA in butanone, ribbon-shaped fibers with a smooth surface and diameter of about 20 μm could be spun using SJES mode and deposited on a rotating drum as target in a highly aligned manner. Photoluminescence spectra of the doped fibers excited longitudinally and transversely with a laser show an excitation peak with full-width-at-half-maximum of only 5.05 nm and a low lasing threshold at a pump energy of 0.55 μJ, indicating that SJES could become a new source of amplified optics components or organic solid-state fiber lasers.

AB - The fabrication of micron-sized poly(methyl methacrylate) (PMMA) polymer optical fibers doped with rhodamine B as an organic dye is demonstrated. Highly aligned and defect-free fibers are fabricated by using the stable jet electrospinning (SJES) method and systematically varying critical parameters such as solvent type and polymer concentration. At optimal conditions, for example, a polymer concentration of 35 wt% of PMMA in butanone, ribbon-shaped fibers with a smooth surface and diameter of about 20 μm could be spun using SJES mode and deposited on a rotating drum as target in a highly aligned manner. Photoluminescence spectra of the doped fibers excited longitudinally and transversely with a laser show an excitation peak with full-width-at-half-maximum of only 5.05 nm and a low lasing threshold at a pump energy of 0.55 μJ, indicating that SJES could become a new source of amplified optics components or organic solid-state fiber lasers.

KW - fiber alignment

KW - fiber laser

KW - laser dye

KW - stable-jet-electrospinning

UR - http://www.scopus.com/inward/record.url?scp=85120859435&partnerID=8YFLogxK

U2 - 10.1002/pol.20210747

DO - 10.1002/pol.20210747

M3 - Article

AN - SCOPUS:85120859435

VL - 60

SP - 715

EP - 725

JO - Journal of Polymer Science

JF - Journal of Polymer Science

SN - 2642-4150

IS - 4

ER -