About: http://webisa.webdatacommons.org/288804838

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Traditional lasers work by bouncing photons back and forth in a laser cavity, in which a material such as a crystal or a gas sits between two mirrors.
http://www.w3.org/ns/prov#wasQuotedFrom	ieee.org