Objective: Develop plasmonic structures in which the
spatial conductivity can be varied
Approach: Use a
commercial inkjet printer with conductive silver ink
and
resistive carbon ink filled in separate cartridges. Use
conventional presentation software to design and print plasmonic structures
with desired spatial variation.
Results
and Significance: Using THz imaging, we measured the
changes in the transmitted beam profile as a function of the spatial
conductivity pattern. Results demonstrate that the change in conductivity
corresponds directly to changes in surface plasmon polariton propagation lengths,
yielding additional flexibility in creating new plasmonic structures.
