In this talk, I will discuss our recent development of a hyperspectral vibrational sum-frequency generation microscope to enable (1) fast data acquisition, (2) spatial resolved ultrafast vibrational dynamics at hidden interfaces of materials. Using the new microscope, we are able to resolve domain-specific vibrational energy dissipation in soft materials which are shown to be sensitive to RH and be domain-specific. The technique could be useful to bridge fundamental molecular insights with the macroscopic functionality of these materials.

Hyperspectral vibrational sum frequency generation microscopy for self-assembled materials and biological tissues

ACS Fall 2021

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