Product Description
Premium Fused Silica Optical Windows – Janos Technology (Lot of 5)
For Sale: Lot of 3 High-Quality AR-Coated Fused Silica Plano-Plano Windows
Manufactured by Janos Technology (USA) – a renowned supplier of precision infrared and laser optics for defense, aerospace, and research applications.
🔍 Specifications:
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Material: High-purity UV-grade fused silica
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Diameter: 1.750″ (44.45 mm)
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Thickness: 5 mm
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Coating: Antireflection (AR) coated on both surfaces
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Coating Type: High-efficiency multilayer VIS or broadband AR (minimal reflection/loss)
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Transmission Range: Deep UV (~200 nm) through visible to near-IR
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Condition: Excellent – stored in protective cases with original Janos labeling
⭐ Key Features & Performance:
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>99% Transmission in VIS/NIR spectral windows
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High Laser Damage Threshold – suitable for high-power laser applications
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Low Absorption & Scatter – superior optical clarity
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Excellent Thermal Stability – minimal thermal expansion
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Precision U.S. Manufacture – Janos Technology (Vermont, USA), trusted in military/aerospace optics
🛠️ Common Applications:
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Laser Debris Shields / Protective Windows (excimer, Nd:YAG, fiber lasers)
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Vacuum Chamber Viewports
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Optical System Protective Covers
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Beam Sampling & Diagnostic Windows
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UV/VIS/NIR Spectroscopy & Imaging
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High-Energy Physics, Semiconductor, and R&D Setups
✅ Condition & What’s Included:
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Quantity Available: 5 windows (sold as a lot)
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Condition: Excellent – clean, no visible scratches or coating defects
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Storage: Kept in protective cases with original Janos labeling
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Note: No original datasheets or test certificates included unless specified



