Two-dimensional nano-ultrasonic imaging by using acoustic nanowaves
Journal
Applied Physics Letters
Journal Volume
89
Journal Issue
4
Date Issued
2006-01
Author(s)
Abstract
Two-dimensional ultrasonic imaging is demonstrated by using acoustic nanowaves. With a 14 nm acoustic wavelength, both axial and transverse resolutions of a few tens of nanometers are thus achieved. This ultrasonic-based nondestructive technique not only images but also reconstructs the subsurface nanostructures including the depth positions of the buried interfaces. By demonstrating two-dimensional nanoultrasonic scans in depth and transverse (or z-x) axes, we show that acoustic nanowaves can be a promising tool for future subsurface three-dimensional noninvasive imaging with nanometer resolutions. © 2006 American Institute of Physics.
Other Subjects
Acoustic waves; Interfaces (materials); Nondestructive examination; Optical resolving power; Acoustic nanowaves; Nanoultrasonic scans; Noninvasive imaging; Ultrasonic imaging
Type
journal article