12 July 2017 Towards non-invasive high-resolution 3D nano-tomography by ultrasonic scanning probe microscopy
Author Affiliations +
Proceedings Volume 10324, International Conference on Nano-Bio Sensing, Imaging, and Spectroscopy 2017; 1032408 (2017) https://doi.org/10.1117/12.2269817
Event: International Conference on Nano-Bio Sensing, Imaging, and Spectroscopy 2017, 2017, Jeju, Korea, Republic of
Abstract
Nanoscale imaging techniques that can be used to visualize and characterize local aggregations of the embedded nanoparticulates with sufficient resolution have attracted a great deal of interest. Ultrasonic scanning probe microscopy (SPM) and its derivatives are nondestructive techniques that can be used to elucidate subsurface nanoscale features and mechanical properties. Although many different ultrasonic methods have been used for subsurface imaging, the mechanisms and crucial parameters associated with the contrast formation in subsurface imaging are still unclear. Here, the impact of mechanical properties of the nanoparticulates/matrix, size of the nanoparticulates, buried depth of the nanoparticulates, and the ultrasonic excitation frequency on the developed ultrasonic SPM images have been investigated. To verify our theoretical model, experimental measurements of scanning near-field ultrasound holography (SNFUH) have been recreated in our theoretical analysis to reveal comparable variations in phase contrast measured in SNFUH while scanning over the nanoparticulates embedded in bacteria.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hossein J. Sharahi, Hossein J. Sharahi, Gajendra Shekhawat, Gajendra Shekhawat, Vinayak Dravid, Vinayak Dravid, Philip Egberts, Philip Egberts, Seonghwan Kim, Seonghwan Kim, } "Towards non-invasive high-resolution 3D nano-tomography by ultrasonic scanning probe microscopy", Proc. SPIE 10324, International Conference on Nano-Bio Sensing, Imaging, and Spectroscopy 2017, 1032408 (12 July 2017); doi: 10.1117/12.2269817; https://doi.org/10.1117/12.2269817
PROCEEDINGS
6 PAGES


SHARE
Back to Top