{"product_id":"custom-holographic-grating-spectrometer","title":"Holographic Diffraction Grating | Plane \u0026 Rowland Concave Type | METICULAB™","description":"\u003cdiv style=\"font-family: 'Helvetica Neue', Arial, sans-serif; max-width: 860px; margin: 0 auto; padding: 10px 0;\"\u003e\n\u003ch2 style=\"font-size: 24px; font-weight: 300; color: #1a1a1a; border-left: 4px solid #0b1a33; padding-left: 15px; margin-top: 0;\"\u003eLow Stray‑Light, Reliable Dispersion: Holographic Diffraction Gratings for Spectroscopy Instruments\u003c\/h2\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.7; color: #333; margin: 20px 0;\"\u003eWhen accurate spectral separation matters for your spectrometer system, every groove counts. The \u003cstrong\u003eMETICULAB™ Holographic Diffraction Grating\u003c\/strong\u003e is manufactured via holographic interference lithography, delivering low stray‑light performance without ghost lines. Available in plane and Rowland concave types, with optional aluminum alloy mounting base for quick integration into analytical spectroscopy equipment.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.7; color: #333; margin: 20px 0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0791\/7695\/8204\/files\/Holographic_Diffraction_Grating_spc.png?v=1786185323\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3 style=\"font-size: 18px; font-weight: 600; color: #1a1a1a; margin: 30px 0 12px 0; border-bottom: 2px solid #eee; padding-bottom: 8px;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; background: #f9fafb; border: 1px solid #e2e8f0; font-size: 15px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n\u003ctd style=\"padding: 12px 16px; font-weight: 600; width: 35%; background: #f1f5f9;\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; font-weight: bold; color: #0b1a33;\"\u003ePlane \/ Rowland Concave Holographic Grating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n\u003ctd style=\"padding: 12px 16px; font-weight: 600; background: #f1f5f9;\"\u003eSubstrate Material\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px;\"\u003eN‑BK7 Optical Glass, Fused Silica\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n\u003ctd style=\"padding: 12px 16px; font-weight: 600; background: #f1f5f9;\"\u003eReflective Coating\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px;\"\u003eAluminum \/ Gold \/ Silver, Protective Overcoat Optional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n\u003ctd style=\"padding: 12px 16px; font-weight: 600; background: #f1f5f9;\"\u003eGroove Density\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px;\"\u003e50‑4321 lines\/mm, Customizable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n\u003ctd style=\"padding: 12px 16px; font-weight: 600; background: #f1f5f9;\"\u003eGroove Density Accuracy\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px;\"\u003e±0.5 lines\/mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n\u003ctd style=\"padding: 12px 16px; font-weight: 600; background: #f1f5f9;\"\u003eWavelength Accuracy\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px;\"\u003ePlane: \u0026lt;=±0.1 nm; Concave: \u0026lt;=±0.2 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n\u003ctd style=\"padding: 12px 16px; font-weight: 600; background: #f1f5f9;\"\u003eSurface Figure\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px;\"\u003e1\/10 wave at 632.8nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n\u003ctd style=\"padding: 12px 16px; font-weight: 600; background: #f1f5f9;\"\u003eSurface Quality\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px;\"\u003eMIL‑PRF‑13830 20\/10 ~ 80\/50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n\u003ctd style=\"padding: 12px 16px; font-weight: 600; background: #f1f5f9;\"\u003eEffective Aperture\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px;\"\u003e\u0026gt;=90% of physical dimension\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n\u003ctd style=\"padding: 12px 16px; font-weight: 600; background: #f1f5f9;\"\u003eMounting Base\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px;\"\u003eAluminum Alloy Base (Optional)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px 16px; font-weight: 600; background: #f1f5f9;\"\u003eImportant Notice\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px;\"\u003eRowland concave grating, NOT flat‑field concave grating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"font-size: 18px; font-weight: 600; color: #1a1a1a; margin: 30px 0 12px 0; border-bottom: 2px solid #eee; padding-bottom: 8px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0791\/7695\/8204\/files\/Key_Advantages.png?v=1786185367\" alt=\"\"\u003e\u003c\/h3\u003e\n\u003ch3 style=\"font-size: 18px; font-weight: 600; color: #1a1a1a; margin: 30px 0 12px 0; border-bottom: 2px solid #eee; padding-bottom: 8px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0791\/7695\/8204\/files\/OEM.png?v=1786185463\" alt=\"\"\u003e\u003c\/h3\u003e\n\u003ch3 style=\"font-size: 18px; font-weight: 600; color: #1a1a1a; margin: 30px 0 12px 0; border-bottom: 2px solid #eee; padding-bottom: 8px;\"\u003eWhy METICULAB™ Holographic Gratings?\u003c\/h3\u003e\n\u003cul style=\"font-size: 15px; line-height: 1.8; color: #333; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eHolographic Interference Lithography:\u003c\/strong\u003e Produce ultra‑low stray‑light performance, eliminate ghost‑line artifacts common with mechanically ruled gratings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrict Optical Tolerance Control:\u003c\/strong\u003e Precise groove density, wavelength and surface figure guarantee consistent spectral dispersion performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Material \u0026amp; Coating Selection:\u003c\/strong\u003e N‑BK7 for UV‑Vis‑NIR, Fused Silica for deep‑UV; Aluminum \/ Gold \/ Silver coating for different spectral bands, optional protective overcoat for anti‑oxidation and moisture resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Customization Available:\u003c\/strong\u003e Custom physical dimension, groove density, reflective coating and pre‑mounted aluminum alloy housing for fast system assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Inspection Before Shipment:\u003c\/strong\u003e Every grating goes through systematic optical test, ready for integration into commercial instruments and research setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"font-size: 18px; font-weight: 600; color: #1a1a1a; margin: 30px 0 12px 0; border-bottom: 2px solid #eee; padding-bottom: 8px;\"\u003eApplications\u003c\/h3\u003e\n\u003cp style=\"font-size: 15px; color: #555;\"\u003eBenchtop Spectrometer · UV‑Vis‑NIR Spectrophotometer · Optical Analytical Equipment · Academic Research Lab · Industrial Spectral Detection · Custom Spectroscopy Instrument Development\u003c\/p\u003e\n\u003cdiv style=\"background: #0b1a33; color: #ffffff; padding: 22px 28px; border-radius: 12px; margin-top: 30px; text-align: center;\"\u003e\n\u003cp style=\"font-weight: bold; color: #f5d98f; margin-bottom: 5px;\"\u003eMETICULAB™ — Precision Optical Components\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e📧 \u003cstrong\u003echoikyuc@gmail.com\u003c\/strong\u003e  |  📞 +82-10-3988-4813  |  🌐 www.meticulab.net\u003c\/p\u003e\n\u003cdiv style=\"font-size: 13px; color: #b8ccdd;\"\u003eWhatsApp \u0026amp; KakaoTalk Available\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 12px; color: #7a8fa3; border-top: 1px solid #edf2f7; padding-top: 16px; margin-top: 18px; text-align: center; font-style: italic;\"\u003eMETICULAB™ is a precision optical component brand. All holographic gratings are fully inspected before dispatch under standardized quality control procedures. Custom‑made and sample products are non‑refundable.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"METICULAB","offers":[{"title":"Default Title","offer_id":50951629013244,"sku":null,"price":200.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0791\/7695\/8204\/files\/ConcaveGrating02.png?v=1786184895","url":"https:\/\/meticulab.myshopify.com\/products\/custom-holographic-grating-spectrometer","provider":"METICULAB","version":"1.0","type":"link"}