Title :
Modeling, fabrication, and characterization of disc on pillar structures for optical field enhancement and extreme nanofocusing
Author :
Lavrik, Nickolay
Author_Institution :
Center for Nanophase Mater. Sci., Oak Ridge Nat. Lab., Oak Ridge, TN, USA
Abstract :
Optimization of plasmonic disc on pillar (DOP) structures guided by FDTD simulations, their deterministic fabrication and characterization by both Raman microscopy and dark-field spectroscopy are discussed. SERS enhancement factors exceeding 109 are achieved using optimized DOP structures.
Keywords :
finite difference time-domain analysis; nanofabrication; nanophotonics; nanostructured materials; optical focusing; optical microscopy; plasmonics; surface enhanced Raman scattering; DOP structures; FDTD simulations; Raman microscopy; SERS enhancement factors; dark-field spectroscopy; nanofocusing; optical field enhancement; plasmonic disc on pillar structures; Finite difference methods; Plasmons; Raman scattering; Silicon; Spectroscopy; Surface morphology; Time-domain analysis;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
