About: http://webisa.webdatacommons.org/116066989

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	It is desirable therefore to have materials such as photonic crystals and devices for controlling the propagation of electromagnetic ra
http://www.w3.org/ns/prov#wasQuotedFrom	google.com