【研究成果】2007-2010年
研究成果21
Subnanometric near-field Raman investigation in the vicinity of a metallic nanostructure Ichimura T, Fujii S, Verma P, Yano T, Inouye Y, Kawata SPhysical Review Letters, 102, 186101 (2009)
We realized near-field Raman microscopy with an accuracy of better than a few angstroms. The tip-sample distance is precisely controlled by our newly developed time-gated illumination technique. We have profiled the spatial decay of evanescent light on an isolated carbon nanotube. We also investigated extremely short-ranged chemical and mechanical interactions between the metal on the tip apex and the molecules of an adenine sample, which are observable only within the subnanometric vicinity of the tip. Present result shows strong promise for super high resolution in optical microscopy based on this technique.
