Bulletin of the American Physical Society
APS March Meeting 2021
Volume 66, Number 1
Monday–Friday, March 15–19, 2021; Virtual; Time Zone: Central Daylight Time, USA
Session H71: Poster Session I (2:00pm - 4:00pm)
2:00 PM,
Tuesday, March 16, 2021
Abstract: H71.00108 : Quantifying the probing depth of mode-synthesizing atomic force microscopy for nanoscale infrared spectroscopy
Presenter:
Fernand Torres-Davila
(University of Central Florida)
Authors:
Fernand Torres-Davila
(University of Central Florida)
Chance Barrett
(University of Central Florida)
Laurene Tetard
(University of Central Florida)
By developing model test multi-layered films with top-coats and sub-layers of various thicknesses and various compositions, we will discuss how these parameters impact the probing depth and subsequently the sensitivity and spatial resolution of nanoscale infrared measurements. We will evaluate the ability to distinguish surface from volume contributions using multi-frequency AFM as the new detection scheme of the measurements. We will establish some connections between the underlying parameters involved in spectra and image formation and the resulting spatial resolution and sensitivity. Finally, we will highlight some applications of the instrumental advances to characterize heterogeneous systems of relevance to material and life sciences.
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