JGS1 Quartz Optical Window（Fused silica）

Specific Information

JGS1 is a high-purity synthetic quartz glass with excellent optical properties, including high transmittance from the deep ultraviolet (around 185 nm) to the near-infrared spectral range (up to 2500 nm). It features exceptional thermal stability, low thermal expansion, and high resistance to chemical corrosion, making it ideal for precision optical components used in UV optics, laser systems, semiconductor manufacturing, and analytical instrumentation.

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specification
Properties

Item	JGS1 Quartz Optical Window
Diameter	50.8±0.3mm	100±0.3mm	150±0.5mm	200±0.5mm	80*80 mm	152*152 mm
Thickness	500μm	500μm	1000μm	1000μm	1000μm	2000μm
Primary Flat Length	16mm	32.5mm	47.5mm	Notch	N/A	N/A
Surface Finish	S/D 60/40

Customization specifications：
* Various diameters：10~300mm .
* Ultra-thin wafers can be customized,thicknesses ≥0.1mm.
* Custom shapes available, including square windows or other forms for optical applications.

Quartz exhibits excellent optical transparency, especially in the UV to IR spectral range, making it ideal for precision optics. It has a very low thermal expansion coefficient, high thermal stability (softening point around 1700°C), and outstanding chemical resistance to most acids and alkalis. Additionally, quartz is mechanically strong, electrically insulating, and highly durable under extreme environmental conditions.

Property	JGS1 Quartz	JGS2 Quartz	Borosilicate Glass BF33
Material	High-purity（synthetic ）	Medium-purity（natural or synthetic）	Borosilicate glass (contains boron oxide)
Main Composition	SiO₂ (>99.99%)	SiO₂ (>99.9%)	SiO₂ (~81%), B₂O₃ (~13%)
Hydroxyl	~1000 ppm	~200 ppm	<10 ppm
Thermal Expansion Coefficient	0.55 × 10⁻⁶ /K	0.55 × 10⁻⁶ /K	3.25 × 10⁻⁶ /K
Heat Resistance	softening point ~1700°C	softening point ~1700°C	softening point ~820°C
Transmission Range	185–2500 nm	220–2500 nm	300–2500 nm
UV Transmission	Excellent (high transmittance＞185 nm)	Poor (low transmittance ＜ 220 nm)	Poor (low transmittance ＜ 300 nm)
IR Transmission	Poor (affected by absorption at 2.7 µm)	Good (high transmittance at 2.7 µm)	Good (high transmittance at 2.7 µm)
Chemical Stability	Excellent	Excellent	Good
Mechanical Strength	High	High	High
Main Applications	UV optics, lasers, semiconductors	IR optics, general optics, laser windows	Optical windows, lab equipment, display panels

JGS1 Quartz Optical Window（Fused silica）

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