Multi-level surface enhanced Raman scattering using AgOx thin film
Journal
Optics Express
Journal Volume
21
Journal Issue
21
Pages
24460-22467
Date Issued
2013-10
Author(s)
Abstract
Ag nanostructures with surface-enhanced Raman scattering (SERS) activities have been fabricated by applying laser-direct writing (LDW) technique on silver oxide (AgOx) thin films. By controlling the laser powers, multi-level Raman imaging of organic molecules adsorbed on the nanostructures has been observed. This phenomenon is further investigated by atomic-force microscopy and electromagnetic calculation. The SERS-active nanostructure is also fabricated on transparent and flexible substrate to demonstrate our promising strategy for the development of novel and low-cost sensing chip.
Type
journal article