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.
(a) The measured intensity of the beam scan at the focal plane using a MEMS mirror and a liquid lens set up. (b) The spot profile without adjusting focus at the edge of the scan marked by the red circle in (a). (c) The spot profile after refocusing. (d) FWHM spot size measurements at different distance from the center without adjusting focus. Using refocusing method, a spot size under 20 μm was achieved across the entire 7 mm FOV.
