Fig. 4.
Curves of point spread function of the conventional system (a) and the proposed system (b). (c) Normalized central peak values vs axial distance.
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.