About: http://webisa.webdatacommons.org/419977760

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	An optical waveguide is a structure in which a first region possesses a first index of refraction and a second region possesses a second index of refraction.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au