{"product_id":"471221-fabry-perot-etalon","title":"471221 Fabry–Perot Etalon","description":"\u003cp\u003eThe Leybold 471221 Fabry–Perot etalon is designed for interferometer setups used to study the Zeeman effect. Its high-parallel glass plate has semi-reflective metal coatings on both sides, and the etalon angle can be adjusted relative to the optical axis.\u003c\/p\u003e\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDiameter: 25 mm\u003c\/li\u003e\n\u003cli\u003eThickness: 4 mm\u003c\/li\u003e\n\u003cli\u003eReflection coefficient: 0.85\u003c\/li\u003e\n\u003cli\u003eWavelength: 644 nm\u003c\/li\u003e\n\u003cli\u003eFlatness: 32 nm (λ\/20)\u003c\/li\u003e\n\u003cli\u003eMaterial: Suprasil\u003c\/li\u003e\n\u003cli\u003eRefractive index: 1.457\u003c\/li\u003e\n\u003cli\u003eResolving power: approximately 400,000\u003c\/li\u003e\n\u003cli\u003eHolder diameter: 13 cm\u003c\/li\u003e\n\u003cli\u003eRod diameter: 10 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Leybold LD Didactic","offers":[{"title":"Default Title","offer_id":42003064553698,"sku":"SKU-243","price":3578.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/2735\/2802\/products\/p-116700-1490643385-47122_20_Copy.jpg?v=1636091724","url":"https:\/\/klingereducational.com\/products\/471221-fabry-perot-etalon","provider":"Klinger Educational ","version":"1.0","type":"link"}