Sparse-sampling parallel Raman/SERS microspectroscopy by active illumination for high-throughput molecular analysis of micro and nanoparticles

摘要

We present the applications of parallel Raman/SERS microspectroscopy by active illumination for simultaneously obtaining the full Raman/SERS spectra from multiple points within a field of view -100 x 100 im2 and -micron spatial resolution. Two schemes have been employed in these studies: line-scan and programmable active illumination. We demonstrate the rapid classification of microparticles with similar shape, size and refractive index based on their chemical composition. We also demonstrate the rapid microanalysis of self-assembled monolayers on various types of gold nanostructures via SERS.