About: http://webisa.webdatacommons.org/95847731

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	As will be understood by those skilled in the art, a photonic crystal is a body including at least two materials having different indices of refraction arranged in a periodic structure such that an optical band-gap property is exhibited.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com