5:00 PM - 5:15 PM
[15p-2G-13] Dark-field measurement of enhanced electric fields of a TERS tip top
Keywords:Tip enhanced Raman scattering (TERS),local plasmon resonance,dark field illumination
Tip enhanced Raman scattering (TERS) spectroscopy enables us to analyze molecular structures with the spatial resolution of nanometer. The origin of the Raman enhancement is local plasmon resonance at TERS tip tops. Thus experimental evaluation of the local plasmon is important for development of TERS tips. In the present study, we report imaging of local plasmon at tip top by dark field illumination and comparison the image with SEM images.