Understanding the physical and chemical processes occurring at the surfaces of nanoparticles is important for understanding, controlling, and predicting how nanoparticles interact with the environment. This presentation will show how nonlinar optical coherent electronic and vibrational probes access the surfaces of engineered and natural nanoparticles directly, in real time and space, at room temperature, under aqueous solution and flow conditions or at one atmosphere of air, and without the necessity of external labels. Example are presented that focus on nm-sized CdSe quantum dots as an example of engineered nanoparticles and on highly size resolved  organic aerosol particles from tropical and boreal forests as an example of natural particles.

Coherent vibrational and electronic spectroscopy of engineered and natural nanoparticles

243rd National Meeting (2012)

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