@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<http://www.irandoc.acir/onto/irandoc/insp0004878>
  skos:prefLabel "Gradient index optics"@en, "نورشناسی شاخص شیب"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0013363> .

<http://www.irandoc.acir/onto/irandoc/insp0004929>
  skos:prefLabel "Birefringence"@en, "دوشکستی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0013363> .

<http://www.irandoc.acir/onto/irandoc/insp0013363>
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0009520>, <http://www.irandoc.acir/onto/irandoc/insp0012515>, <http://www.irandoc.acir/onto/irandoc/insp0002416>, <http://www.irandoc.acir/onto/irandoc/insp0004449>, <http://www.irandoc.acir/onto/irandoc/insp0004929>, <http://www.irandoc.acir/onto/irandoc/insp0002969>, <http://www.irandoc.acir/onto/irandoc/insp0004447>, <http://www.irandoc.acir/onto/irandoc/insp0009154>, <http://www.irandoc.acir/onto/irandoc/insp0007161>, <http://www.irandoc.acir/onto/irandoc/insp0004878> ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:altLabel "انکسار"@fa, "" ;
  skos:prefLabel "ضریب شکست"@fa, "Refractive index"@en ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0013364> .

<http://www.irandoc.acir/onto/irandoc/insp0009154>
  skos:prefLabel "Invisibility cloak"@en, "پوشش نامرئی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0013363> .

<http://www.irandoc.acir/onto/irandoc/insp0009520>
  skos:prefLabel "شکست‌سنج"@fa, "Refractometer"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0013363> .

<http://www.irandoc.acir/onto/irandoc/insp0004449>
  skos:prefLabel "Photonic band gap"@en, "گاف نواری فوتونی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0013363> .

<http://www.irandoc.acir/onto/irandoc/insp0004447>
  skos:prefLabel "Photorefractive effect"@en, "تاثیر کراتوتومی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0013363> .

<http://www.irandoc.acir/onto/irandoc/insp0002416>
  skos:prefLabel "Slow light"@en, "نور آهسته"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0013363> .

<http://www.irandoc.acir/onto/irandoc/insp0002969>
  skos:prefLabel "Refraction"@en, "شکست"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0013363> .

<http://www.irandoc.acir/onto/irandoc/insp0013364>
  skos:prefLabel "Optical constant"@en, "ثابت اپتیکی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0013363> .

<http://www.irandoc.acir/onto/irandoc/insp0007161>
  skos:prefLabel "Refractive index measurement"@en, "اندازه‌گیری ضریب شکست"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0013363> .

<http://www.irandoc.acir/onto/irandoc/insp0012515>
  skos:prefLabel "Dispersion (wave)"@en, "پاشش"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0013363> .