<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">spin flip lasers</topic></authority><related type="broader"><topic>lasers</topic></related><variant type="other"><topic>SFRL</topic></variant><variant type="other"><topic>lasers, spin flip</topic></variant><variant type="other"><topic>spin flip Raman laser</topic></variant><variant type="other"><topic>spin flip laser</topic></variant> <note xml:lang="en"><![CDATA[ Semiconductor lasers used in Raman spectroscopy that reverse, or flip, the direction of conduction-band electrons as they spin on an axis in the direction of the magnetic field. ]]></note></mads>