Utilization of microdroplet as optical lens for Surface-Enhanced Raman Spectrometry (SERS) enhancement on localized silver nanoparticle-decorated porous silicon substrate

We demonstrate the use of a microdroplet as an optical lens positioned on a localized silver nanoparticle-decorated porous silicon (LocAg-PS) surface for enhanced surface-enhanced Raman spectroscopy (SERS) analysis.