Multiple coherent effects including Fano resonances are observed in self-assembled reduced symmetry gold nanorod
systems, in particular Dolmen configurations. The bottom-up chemical method provides high quality units and
assemblies (single crystal with low surface roughness and sub 5 nm gaps) that reduce radiative losses from the plasmonic
structures. Multiple dark and bright plasmonic resonances are observed in optical dark-field scattering measurements and
electron energy loss spectroscopy. These high fidelity structures and narrow resonances are promising for future design
of high figure of merit sensors, ultrafast switches and slow light devices for optical information processing.
Compensation for loss by introducing gain media in optical metamaterials was suggested by Ramakrishna and
Pendry (Phys. Rev. B, 67, 201101, 2003). In this work, applying finite-difference-time-domain simulations, we
analyzed an Au nanorod (AuNR) structure, as well as fishnet nanostructures with varying positioning of the gain
medium. Transmittance, reflection and absorption spectra for an AuNR nanostructure incorporating InP
quantum dots (QDs) and of a fishnet nanostructure incorporating InAs QDs have shown that despite limitations,
results are encouraging in increasing the transmittance upon gain medium incorporation in the passive regime.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.