High Precision JGS1 JGS2 Fused Silica Glass Optical Component

1. Material Composition

• JGS1 Fused Silica: Synthetic quartz glass with exceptional ultraviolet (UV) transmission, particularly in the deep UV range (185-250 nm), and low hydroxyl (OH) content.

• JGS2 Fused Silica: Synthetic quartz glass with superior infrared (IR) transmission and higher thermal stability, featuring higher hydroxyl content for different optical performance.

• High-Precision Fabrication: Components are manufactured using advanced CNC grinding, diamond turning, and polishing techniques to achieve sub-micron surface accuracy and tight dimensional tolerances.

2. Key Optical & Physical Properties

• Spectral Transmission Range:

  • JGS1: Excellent transmission from 185 nm (Deep UV) to 2.5 µm (Near-IR).

  • JGS2: Excellent transmission from 260 nm (UV) to 3.5 µm (Mid-IR).

• Thermal & Mechanical Stability: Extremely low coefficient of thermal expansion (0.55 x 10⁻⁶/K), high thermal shock resistance, and strong mechanical durability.

• Surface Quality: Can achieve laser-grade surface finishes (e.g., λ/10 flatness, 10-5 scratch-dig) with minimal subsurface damage.

• Laser Damage Resistance: High threshold suitable for excimer, UV, and high-power laser applications.

3. Core Functions

• Precision Light Transmission & Control: Manipulates UV to IR light with minimal wavefront distortion, scatter, or absorption.

• Beam Steering & Focusing: Serves as high-accuracy lenses, windows, prisms, and mirrors in complex optical paths.

• Environmental & Thermal Barrier: Protects sensitive internal optics in volatile environments while maintaining stability across wide temperature ranges.

• System Critical Interface: Ensures optimal performance in applications demanding exact optical alignment and minimal signal loss.

4. Primary Applications

• Semiconductor Photolithography: Critical components in steppers and scanners using deep UV (DUV) lasers.

• High-Power Laser Systems: Windows, lenses, and beam delivery optics for excimer, Nd:YAG, and fiber lasers.

• Astronomy & Space Optics: Telescope mirrors, satellite lenses, and spectrometer components requiring thermal stability.

• Analytical & Life Science Instruments: UV-Vis spectrophotometer cells, fluorescence detector windows, and microscope optics.

• Industrial Metrology & Inspection: Precision optics for laser interferometers, wafer inspection systems, and optical coordinate measuring machines.