Temporal characterization of mid-infrared photothermal signals at aqueous interfaces

Panagis Samolis; Michelle Y. Sander

doi:10.1117/12.2678069

6 October 2023 Temporal characterization of mid-infrared photothermal signals at aqueous interfaces

Panagis Samolis, Michelle Y. Sander

Proceedings Volume PC12681, Ultrafast Nonlinear Imaging and Spectroscopy XI; PC1268109 (2023) https://doi.org/10.1117/12.2678069
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Abstract

Time-resolved mid-infrared photothermal imaging is discussed to study heat diffusion dynamics in various complex environments including water interfaces and nanoparticle clusters. Boxcar detection enables the extraction of hyper-temporal image stacks along with local temporal traces of the photothermal signal with high a signal-to-noise ratio and no complex post-processing. Environments with multiple absorbers in close proximity to each other or features in highly absorbing media can be analyzed with characteristic thermal decay profiles.

Conference Presentation

Citation Download Citation

Panagis Samolis and Michelle Y. Sander "Temporal characterization of mid-infrared photothermal signals at aqueous interfaces", Proc. SPIE PC12681, Ultrafast Nonlinear Imaging and Spectroscopy XI, PC1268109 (6 October 2023); https://doi.org/10.1117/12.2678069

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