Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Optical images of laser-processed unit and non-processed unit. (a) Surface topography tracking of laser-processed unit. (b) Laser track of laser-processed unit. (c) High-low image of laser-processed unit. (d) Surface topography tracking of non-processed unit. (e) Laser track of non-processed unit. (f) High-low image of non-processed unit.
