About: http://webisa.webdatacommons.org/31613432

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	Presently, most WGM devices rely on solid material such as silica, chalcogenide and CaF2.
http://www.w3.org/ns/prov#wasQuotedFrom	osapublishing.org