About: http://webisa.webdatacommons.org/240308974

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	a polarization rotator positioned along the path, for rotating the polarization of the beam by an angle substantially equal to (90+(N) (180) degrees, where N is an integer, in order to compensate for thermal birefringence of the rod; and
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com