Vapour Reference Cells Iodine Reference Cells

The Photonics Technologies Iodine Reference Spectroscopic cells are available with Pyrex or Quartz windows and with high purity Iodine filling.

The Iodine Reference Cells come in a range of sizes, styles, and window materials.

Please see the ‘factfile’ tab in the table below for more details

Double-side anti-reflective (AR) coated windows are only available on spectroscopic cells made from quartz, with quartz or fused silica windows.  The AR coating centered at 780nm has a wavelength range from 730 to 830 nm with a reflectance of less than 0.5%.

Pyrex vapour reference cells are not available with wedged windows, but Pyrex windows can be attached at an angle.

For cells in stock and available for immediate delivery, please click on the ‘delivery’ tab in the table below

Due to the filling material, these cells are classed as Dangerous Goods for carriage by Air. Please contact us for a quote with shipping to your specific location.

If you require a specific cell not listed, please contact us for more information.

Price on Application


Cell TypeAR-coatedQuartzPyrex
Optical Path Length:75mm100mm100mm
Stem Height:<10mm<10mm<10mm
Window Aperture:20mm
Window Material:UV Fused SilicaUV Fused SilicaBorosilicate (Pyrex)
Window Thickness:3mm3mm3mm
Window Angle:11°
Window Type:AR-Coated 500nm to 600nmWedged 2°Flat, fused to body
Window Flatness:λ/10
Window Quality:40-20 Scratch & Dig60-40 Scratch & Dig60-40 Scratch & Dig



4 Weeks

In stock for immediate delivery:



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