2014/03/28 by Patrick Z. El‐Khoury, Dehong Hu, El-Khoury, Patrick Z. +3
Biochemistry, Genetics and Molecular Biology · Materials Science · Physics and Astronomy · #Chemical Physics (physics.chem-ph) #FOS: Physical sciences #Gold and Silver Nanoparticles Synthesis and Applications #Optics (physics.optics) #Spectroscopy Techniques in Biomedical and Chemical Research #Spectroscopy and Quantum Chemical Studies
paper · pdf · doi:10.48550/arxiv.1403.7508
openalex publication_date 2014/03/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Non-resonant tip-enhanced Raman images of dimercaptostilbene on silver reveal that different vibrational resonances of the reporter are selectively enhanced at different sites on the metal substrate. Sequentially recorded images track molecular diffusion within the diffraction-limited laser spot which illuminates the substrate. In effect, the recorded time resolved (dt = 10 s) pixelated images (25 nm x 8 cm-1) broadcast molecule-local field interactions which take place on much finer scales.