Gas reference Cell



 

• Different Gasses for Frequency and Wavelength Reference


• Gas Cells Made from Either Quartz or Borosilicate


• Custom Reference Cell Capabilities


• Window material include:  the UV quartz(180nm-2.5um) , Sapphire (200nm-5um ),


• ZnS for Infrared (2-14um)

 

 

 

1. Quartz reference cells

 

feature UV fused silica windows for superior transmission in the UV spectral range(200nm-2.5um). The windows, which are angled to compensate for beam offset, are designed with a 2 degree wedge so as to eliminate etalon effects.

 

The Quartz Gas cell was vacuum seal with glass tube, the leak rate can reach 1x10-9 Pa, the bake out temp can reach 1000 degree.

Specifications Windows Material UV grade Quartz glass Surface Quality 60-40 laser quality Transmitted Wavefront Distortion λ/2 at 633nm Diameter Tolerance + 0.00mm, - 0.25mm Thickness Tolerance ± 0.25mm Wedge 2 degree;  option 5-15 degree Chamfer 0.35mm at 45° typical Clear Aperture Exceeds central 85% of dimension   Standard stock   Part No. Diameter mm Length mm Delivery time QC126 12.7 25 stock QC129 12.7 50 stock QC196 19 25 stock QC199 19 50 stock QC256 25.4 25 stock QC259 25.4 50 stock QC2512 25.4 100 stock QC386 38.1 50 stock QC389 38.1 100 stock QC3812 38.1 150 stock QC506 50.8 100 stock QC509 50.8 150 stock   Note: Other sizes and coatings are available upon request.

 

 

 

2. Sapphirereference cells

feature Sapphire windows for superior transmission in the NIR spectral range (400nm-5um). The windows, which are angled to compensate for beam offset, are designed with a 2 degree wedge so as to eliminate etalon effects.

 

The Sapphire Gas cell was vacuum seal with glass tube, the leak rate can reach 1x10-9 Pa, the bake out temp can reach 400 degree.

Specifications Windows Material  sapphire crystal Surface Quality 60-40 laser quality Transmitted Wavefront Distortion λ/2 at 633nm Diameter Tolerance + 0.00mm, - 0.25mm Thickness Tolerance ± 0.25mm Wedge 2 degree;  option 5-15 degree Chamfer 0.35mm at 45° typical Clear Aperture Exceeds central 85% of dimension   Standard stock   Part No. Diameter mm Length mm Delivery time IF126 12.7 25 stock IF129 12.7 50 stock IF196 19 25 stock IF199 19 50 stock IF256 25.4 25 stock IF259 25.4 50 stock IF2512 25.4 100 stock IF386 38.1 50 stock IF389 38.1 100 stock IF3812 38.1 150 stock IF506 50.8 100 stock IF509 50.8 150 stock   Note: Other sizes and coatings are available upon request.

 

 

3. ZnSreference cells

 

feature ZnS windows for superior transmission in the FIR spectral range(2-14um). The windows, which are angled to compensate for beam offset, are designed with a 2 degree wedge so as to eliminate etalon effects.

The ZnS Gas cell was vacuum seal with glass tube, the leak rate can reach 1x10-9 Pa, the bake out temp can reach 200 degree.

Specifications Windows Material  CVD ZnS crystal Surface Quality 80-50 laser quality Transmitted Wavefront Distortion λ/2 at 633nm Diameter Tolerance + 0.00mm, - 0.25mm Thickness Tolerance ± 0.25mm Wedge 2 degree;  option 5-15 degree Chamfer 0.35mm at 45° typical Clear Aperture Exceeds central 85% of dimension   Standard stock   Part No. Diameter mm Length mm Delivery time ZS126 12.7 25 stock ZS 129 12.7 50 stock ZS 196 19 25 stock ZS 199 19 50 stock ZS 256 25.4 25 stock ZS 259 25.4 50 stock ZS 2512 25.4 100 stock ZS 386 38.1 50 stock ZS 389 38.1 100 stock ZS 3812 38.1 150 stock ZS 506 50.8 100 stock ZS 509 50.8 150 stock   Note: Other sizes and coatings are available upon request.

 

 

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