{"id":2009,"date":"2026-01-21T01:45:41","date_gmt":"2026-01-21T01:45:41","guid":{"rendered":"https:\/\/www.sapphire-windows.com\/?post_type=product&p=2009"},"modified":"2026-01-21T01:45:42","modified_gmt":"2026-01-21T01:45:42","slug":"custom-square-sapphire-optical-window-with-precision-through-hole","status":"publish","type":"product","link":"https:\/\/www.sapphire-windows.com\/th\/product\/custom-square-sapphire-optical-window-with-precision-through-hole\/","title":{"rendered":"\u0e2b\u0e19\u0e49\u0e32\u0e15\u0e48\u0e32\u0e07\u0e2d\u0e2d\u0e1b\u0e15\u0e34\u0e04\u0e31\u0e25\u0e1e\u0e25\u0e2d\u0e22\u0e2a\u0e35\u0e40\u0e2b\u0e25\u0e35\u0e48\u0e22\u0e21\u0e41\u0e1a\u0e1a\u0e01\u0e33\u0e2b\u0e19\u0e14\u0e40\u0e2d\u0e07\u0e1e\u0e23\u0e49\u0e2d\u0e21\u0e23\u0e39\u0e17\u0e30\u0e25\u0e38\u0e17\u0e35\u0e48\u0e21\u0e35\u0e04\u0e27\u0e32\u0e21\u0e41\u0e21\u0e48\u0e19\u0e22\u0e33"},"content":{"rendered":"

\u0e20\u0e32\u0e1e\u0e23\u0e27\u0e21\u0e02\u0e2d\u0e07\u0e1c\u0e25\u0e34\u0e15\u0e20\u0e31\u0e13\u0e11\u0e4c<\/h2>\n

The Custom Square Sapphire Optical Window with Precision Through-Hole is manufactured from high-purity synthetic single-crystal sapphire (Al\u2082O\u2083), a well-established optical and structural material used in demanding industrial environments. Sapphire is widely recognized for its exceptional hardness, mechanical strength, thermal stability, and chemical resistance, making it a reliable choice for long-term optical protection and transmission.<\/p>\n

\"\" \"\" \"\"<\/p>\n

This product combines broadband optical transparency from ultraviolet to visible and near-infrared wavelengths with a precision-engineered through-hole, enabling efficient mechanical integration without compromising optical performance. The through-hole structure supports alignment, vacuum feedthroughs, fluid or gas channels, and mounting interfaces, particularly in compact or high-precision systems.<\/p>\n

Compared with conventional optical glass or fused silica, sapphire optical windows offer significantly higher resistance to wear, pressure, temperature, and chemical attack, ensuring stable performance in harsh and mission-critical applications.<\/p>\n

Material Selection and Engineering Reliability<\/h3>\n

The optical window is fabricated from synthetic single-crystal sapphire, produced under tightly controlled growth conditions to ensure low impurity content, high crystallographic integrity, and consistent optical quality. Sapphire has a long-standing industrial track record in laser optics, semiconductor equipment, medical instrumentation, and aerospace systems, where reliability and durability are essential.<\/p>\n

The precision through-hole is created using low-stress drilling and finishing processes. Optional chamfering or edge rounding is applied to minimize stress concentration around the hole, reducing the risk of cracking during installation or operation. This approach ensures a balance between optical clarity, mechanical strength, and manufacturability.<\/p>\n

\u0e02\u0e49\u0e2d\u0e21\u0e39\u0e25\u0e08\u0e33\u0e40\u0e1e\u0e32\u0e30\u0e17\u0e32\u0e07\u0e40\u0e17\u0e04\u0e19\u0e34\u0e04<\/h2>\n
\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u0e1e\u0e32\u0e23\u0e32\u0e21\u0e34\u0e40\u0e15\u0e2d\u0e23\u0e4c<\/th>\n\u0e02\u0e49\u0e2d\u0e01\u0e33\u0e2b\u0e19\u0e14<\/th>\n<\/tr>\n<\/thead>\n
\u0e27\u0e31\u0e2a\u0e14\u0e38<\/td>\nHigh-purity synthetic sapphire (single-crystal Al\u2082O\u2083)<\/td>\n<\/tr>\n
Crystal Structure<\/td>\nSingle crystal<\/td>\n<\/tr>\n
\u0e04\u0e27\u0e32\u0e21\u0e41\u0e02\u0e47\u0e07<\/td>\nMohs hardness 9 (second only to diamond)<\/td>\n<\/tr>\n
\u0e04\u0e27\u0e32\u0e21\u0e2b\u0e19\u0e32\u0e41\u0e19\u0e48\u0e19<\/td>\n3.97 g\/cm\u00b3<\/td>\n<\/tr>\n
Refractive Index (nd)<\/td>\n~1.77<\/td>\n<\/tr>\n
Young\u2019s Modulus<\/td>\n~435 GPa<\/td>\n<\/tr>\n
Optical Transmission<\/td>\nUV \u2013 Visible \u2013 Near Infrared (UV\u2013Vis\u2013NIR)<\/td>\n<\/tr>\n
Surface Quality (Scratch\/Dig)<\/td>\n80\/50, 60\/40, 40\/20 (optional)<\/td>\n<\/tr>\n
Surface Flatness<\/td>\nTypical 2\u03bb (customizable)<\/td>\n<\/tr>\n
\u0e0a\u0e48\u0e2d\u0e07\u0e40\u0e1b\u0e34\u0e14\u0e17\u0e35\u0e48\u0e0a\u0e31\u0e14\u0e40\u0e08\u0e19<\/td>\n\u2265 90%<\/td>\n<\/tr>\n
\u0e04\u0e27\u0e32\u0e21\u0e40\u0e2a\u0e16\u0e35\u0e22\u0e23\u0e17\u0e32\u0e07\u0e04\u0e27\u0e32\u0e21\u0e23\u0e49\u0e2d\u0e19<\/td>\nExcellent, suitable for high-temperature environments<\/td>\n<\/tr>\n
\u0e04\u0e27\u0e32\u0e21\u0e15\u0e49\u0e32\u0e19\u0e17\u0e32\u0e19\u0e15\u0e48\u0e2d\u0e2a\u0e32\u0e23\u0e40\u0e04\u0e21\u0e35<\/td>\nResistant to acids, alkalis, and most corrosive chemicals<\/td>\n<\/tr>\n
Shape Options<\/td>\nSquare, round, rectangular<\/td>\n<\/tr>\n
Thickness Range<\/td>\nCustomizable (e.g. 0.5 mm \u2013 2 mm or thicker)<\/td>\n<\/tr>\n
Through-Hole<\/td>\nDiameter and position customizable<\/td>\n<\/tr>\n
Edge Treatment<\/td>\nPolished, chamfered, or rounded (optional)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

Customization Capabilities<\/h2>\n

To meet diverse system requirements, the sapphire optical window can be customized in multiple aspects:\"\"<\/p>\n

    \n
  • \n

    External dimensions and thickness for square geometries<\/p>\n<\/li>\n

  • \n

    Through-hole diameter, position, and tolerance control<\/p>\n<\/li>\n

  • \n

    Surface flatness and parallelism for precision optical systems<\/p>\n<\/li>\n

  • \n

    Crystal orientation (C-plane, A-plane, R-plane, M-plane, or off-cut)<\/p>\n<\/li>\n

  • \n

    Optical-grade or engineering-grade surface finishing<\/p>\n<\/li>\n<\/ul>\n

    All custom configurations are manufactured in accordance with established optical fabrication and precision ceramic processing standards, ensuring consistency and repeatability.<\/p>\n

    \u0e01\u0e32\u0e23\u0e43\u0e0a\u0e49\u0e07\u0e32\u0e19\u0e17\u0e31\u0e48\u0e27\u0e44\u0e1b<\/h2>\n
      \n
    • \n

      Laser and Optical Systems: Protective windows, alignment apertures, and beam access ports<\/p>\n<\/li>\n

    • \n

      Medical Devices: Fluidic interfaces, sterile viewing windows, and diagnostic optics<\/p>\n<\/li>\n

    • \n

      Semiconductor & Vacuum Equipment: Vacuum-sealed optical windows with integrated feedthroughs<\/p>\n<\/li>\n

    • \n

      Aerospace & Defense: Optical access points for sensors and ruggedized instrumentation<\/p>\n<\/li>\n

    • \n

      High-Temperature or Corrosive Environments: Optical protection in harsh industrial conditions<\/p>\n<\/li>\n<\/ul>\n

      Design and Engineering Considerations<\/h2>\n
        \n
      • \n

        Through-Hole Stress Management: Proper hole sizing and chamfering are critical to maintaining structural integrity<\/p>\n<\/li>\n

      • \n

        Flatness and Parallelism: Directly influence optical accuracy and system alignment<\/p>\n<\/li>\n

      • \n

        Surface Quality Selection: Should be matched to imaging or laser performance requirements<\/p>\n<\/li>\n<\/ul>\n

        Frequently Asked Questions (FAQ)<\/h2>\n

        Q1: What type of sapphire is used in this optical window?\"\"
        A: The window is made from high-purity synthetic single-crystal sapphire (Al\u2082O\u2083), widely used in industrial and optical applications for its stability and durability.<\/p>\n

        Q2: Can the size and hole position be customized?
        A: Yes. The window dimensions, thickness, through-hole diameter, and hole position can all be customized according to your mechanical and optical requirements.<\/p>\n

        Q3: Does the through-hole affect the strength of the window?
        A: When properly designed and processed with chamfered edges and controlled tolerances, the through-hole does not significantly compromise mechanical strength.<\/p>","protected":false},"excerpt":{"rendered":"

        The Custom Square Sapphire Optical Window with Precision Through-Hole is manufactured from high-purity synthetic single-crystal sapphire (Al\u2082O\u2083), a well-established optical and structural material used in demanding industrial environments.<\/p>","protected":false},"featured_media":2011,"comment_status":"open","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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