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.
Laser-induced temperature-jump spectrometer. Collimators in the absorption and fast thermometer channels are coupled to the light sources and photodiodes (PD) by optical fibers. Both output beams from the Raman shifter are directed to the sample from the opposite sides. Polarization of one beam is 90° rotated to avoid a standing wave and Bragg grating formation in the sample.
