Wrinkled Film Optics: From Infrared Electromagnetic Hotspots to Plasmon- Enhanced Electrochemistry

Electron energy loss spectroscopy and polarization modulation infrared microscopy have shown that wrinkled metallic structures strongly promote localized broadband plasmon excitations from the mid-infrared to the visible range. These excitations generate a multitude of electromagnetic hotspots on the surface. This work aims to investigate the application of these hotspots in plasmon-enhanced electrochemistry and various infrared spectroscopy techniques such as surface-enhanced infrared absorption.