Photo-induced force measurements with femtosecond pulses (Conference Presentation)

Ryan M. Khan; Bongsu Kim; Junghoon Jahng; Eric O. Potma

doi:10.1117/12.2254560

28 April 2017 Photo-induced force measurements with femtosecond pulses (Conference Presentation)

Ryan M. Khan, Bongsu Kim, Junghoon Jahng, Eric O. Potma

Proceedings Volume 10120, Complex Light and Optical Forces XI; 1012015 (2017) https://doi.org/10.1117/12.2254560
Event: SPIE OPTO, 2017, San Francisco, California, United States

Abstract

Raman spectroscopy can provide useful chemical information of nanostructures and molecules. We combine Raman spectroscopy with atomic force microscopy, through dual color photo-induced force microscopy (PiFM). In this modality, images with Raman contrast can be generated with a spatial resolution well below 10 nm at ambient temperature and pressure. Here we utilize this technique to visualize molecules on surfaces with high spatial and temporal resolution. Compared to previous Raman sensitive PiFM measurements, we employ femtosecond pulses and show that this technique is highly sensitive to the stimulated Raman scattering interaction in the molecule.

Conference Presentation

Citation Download Citation

Ryan M. Khan, Bongsu Kim, Junghoon Jahng, and Eric O. Potma "Photo-induced force measurements with femtosecond pulses (Conference Presentation)", Proc. SPIE 10120, Complex Light and Optical Forces XI, 1012015 (28 April 2017); https://doi.org/10.1117/12.2254560

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