<?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">luminescence spectroscopy</topic></authority><related type="narrower"><topic>circularly polarized luminescence</topic></related><related type="broader"><topic>spectroscopy</topic></related><variant type="other"><topic>spectroscopy, luminescence</topic></variant> <note xml:lang="en"><![CDATA[ Luminescence spectroscopy is a collective name given to three related spectroscopic techniques dependent on emission of light from a substance. They are: molecular fluorescence spectroscopy; molecular phosphorescence spectroscopy; and chemiluminescence spectroscopy. ]]></note></mads>