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.
Phase-contrast projection data of an ant placed in a capillary (a) lead to a recovered phase image obtained with the single-step phase-retrieval method using a Pagannin filter (b). The corresponding reconstructed images of a single slice without and with phase retrieval are shown in (c) and (d), respectively.
