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.
Potential energy profiles measured for four different powers of the low numerical aperture trapping beam. Curves are shifted horizontally to better visualize change in the B parameter (as defined in Eq. 9) or the slope of the linear portion of the potential. Inset shows B parameter vs. trapping power and the linear fit used to calculate the particle’s radius.
