Abstract
Tetrahexahedral (THH) and elongated tetrahexahedral (ETHH) gold nanocrystals (NCs) were fabricated and were studied for their unique surface plasmon (SP) excitation. UV–vis absorption spectra and surface-enhanced Raman scattering (SERS) were introduced to experimentally investigate the far-field optical properties and near-field enhancement ability of nanoparticles. Calculation of electric field distribution on the basis of three-dimensional finite-difference time domain (3D-FDTD) method revealed that the E-field enhancement is largely confined to tips with strong dependences on geometry of tip and polarization of incident light. Enhancement factors were estimated, and several influence factors such as coupling effect were mentioned with discussion for the potential advantages of polyhedron-like structure in plasmon-related application.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
