About: http://webisa.webdatacommons.org/292426838

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 amplifier according to claim 4, wherein a thickness T of the transparent film satisfies an equation of T=??(N/2+???)/n, where ?? is a light wavelength, N is an integer and n is a refractive index of the transparent film.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es