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.
The intensity originating from second-harmonic fields depends on molecular alignment for any incident polarization state. (a) The SHG signal is maximal if all molecules are aligned. (b) Partial alignment of molecules results in weaker SHG signal.
