◆Features
It uses JGS1 ultraviolet-grade fused silica, which has extremely high transmittance in the ultraviolet wavelength range (especially deep ultraviolet), making it an ideal substrate material for ultraviolet applications.
Due to the use of metal film reflection, it exhibits very stable transmittance-wavelength characteristics from ultraviolet to infrared.
It features high surface shape accuracy and parallelism.
◆Common Specifications
Material | JGS1 |
Wavelength Range | 200-1200nm |
Coating | surface nickel plating |
OD | OD=4%@300nm |
Surface Quality | 40-20 |
Surface flatness | <2λ@633nm |
Clear Aperture | >90%CA |
◆Applications
High-power laser systems
Ultraviolet spectral analysis
Biomedical Research
Ultrafast laser experiments
Mechanical Mounting: Use dedicated filter mounts, ensuring clamping force is evenly applied to the chamfered edges.
Mounting Direction: Note the direction of the filter's coated surface (it typically faces the light source or detectors).
Cleaning Protocol: Avoid organic solvents. Use dry, clean compressed air or nitrogen gas for gentle blowing.
Coating Maintenance: Avoid mechanical contact or friction on the coated surface.
Packaging and Storage: Each filter should be individually packaged to prevent abrasion and stored in a dry, clean environment.
Material | JGS1 | Diameter | Φ25 mm |
Diameter Tolerance | 0.0/-0.2mm | Thickness | 1mm |
ThicknessTolerance | ±0.1 mm | Wavelength Range | 200-1200nm |
Coating | surface nickel plating | OD（avg） | OD=4%@300nm |
Surface Quality | 40/20 | Surface flatness | <2λ@633nm |
Parallelism | < 30" | Clear Aperture | >90%CA |
Transmittance | 0.01% |
Reflective Neutral Density Filters
