Gold Ion Beam Milled Gold Zero-Mode Waveguides

ORAL

Abstract

Zero-mode waveguides (ZMWs) are widely used in single molecule fluorescence microscopy for their enhancement of emitted light and the ability to study samples at physiological concentrations. ZMWs are typically produced using photo or electron beam lithography. We report a new method of ZMW production using focused ion beam (FIB) milling with gold ions. We demonstrate that ion-milled gold ZMWs with 200 nm apertures exhibit similar plasmon-enhanced fluorescence seen with ZMWs fabricated with traditional techniques such as electron beam lithography.

*Zero-mode waveguides were fabricated at the Center for Nanophase Materials Sciences (CNMS) under User Proposal 2021-A-00569. CNMS is a DOE Office of Science User Facility at Oak Ridge National Laboratory. This work was funded by the Appalachian College Association Faculty Fellowship program and NIH grant R01GM138837.

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Publication: Nanomaterials. 2022 May; 12(10): 1755.
Published online 2022 May 21. doi: 10.3390/nano12101755
PMCID: PMC9147361
PMID: 35630978
Gold Ion Beam Milled Gold Zero-Mode Waveguides
Troy C. Messina, Bernadeta R. Srijanto, Charles Patrick Collier, Ivan I. Kravchenko, and Christopher I. Richards

Presenters

  • Troy C Messina

    • Berea College Physics Program

Authors

  • Troy C Messina

    • Berea College Physics Program

  • Christopher I Richards

    • The University of Kentucky, Department of Chemistry

  • Ivan I Kravchenko

    • Oak Ridge National Laboratory
    • Oak Ridge National Labs, Center for Nanophase Materials

  • Bernadeta R Srijanto

    • Center for Nanophase Materials Sciences, Oak Ridge National Laboratory
    • Oak Ridge National Labs, Center for Nanophase Materials

  • Charles P Collier

    • Oak Ridge National Lab