Direct laser-writing of dielectric-loaded surface plasmon-polariton waveguides for the visible and near infrared
Applied Physics A - Materials Science & Processing
2
100
347-352
2010
Type: Zeitschriftenaufsatz (reviewed)
Abstract
We demonstrate flexible and low-cost fabrication of dielectric-loaded surface plasmon–polariton waveguides. The waveguide structures are fabricated by two-photon polymerization of commercially available, spin-coatable epoxy-based UV-lithographic resist on a metal covered glass slide. The excitation and guiding properties of the plasmonic waveguides are investigated in the far-field at a wavelength of 632.8 nm by imaging the leakage radiation from the waveguide modes. The optimum bending radius for right angle bends is measured to 6 μm providing a transmission of up to 70\%. The functionality of more complex Y-splitters is demonstrated.