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.
Signal-to-noise ratio increases through the reduction of OST, achieved here by changing the objective lens, increasing both magnification and the NA. A) 20×/0.7 NA lens; B) 63×/1.4 NA lens, same field of view; C) overlay of A and B, where green represents the 20× channel. Original scale bars, 20 µm.
