Open AccessDirect near-field optical imaging of UV bowtie nanoantennas
Author(s) -
Liangchen Zhou,
Qiaoqiang Gan,
F. J. Bartoli,
Volkmar Dierolf
Publication year - 2009
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.020301
Subject(s) - near field scanning optical microscope , optics , surface plasmon , optical microscope , materials science , surface plasmon polariton , surface plasmon resonance , antenna (radio) , near and far field , plasmon , near field optics , optoelectronics , physics , scanning electron microscope , nanotechnology , telecommunications , nanoparticle , computer science
We report near-field optical imaging of bowtie nanoantennas obtained using a UV near-field scanning optical microscope (NSOM). A strong and highly localized UV intensity profile was observed at the antenna gap due to the localized surface plasmon resonance. The relationship of optical field enhancement and antenna size is discussed based on numerical simulations and NSOM experiments.