About: http://webisa.webdatacommons.org/234997670

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	By matching the two refractive indices, i.e. n1=no, where n1 is the refractive index of the non-polarization sensitive material, a greater freedom in the selection of the step heights is provided.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com