About: http://webisa.webdatacommons.org/307648142

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	The local electric field changes the optical constants or properties of the GaAs, in particular the absorption coefficient and the index of refraction.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com