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We are currently experiencing technical issues. To place an order at this time, please contact customer service at:

United Kingdom: ukorders@alfa.com or 0800 801812

United States: ecommerce@alfa.com or 1-800-343-0660

Germany: alfaaesar.eurosales@thermofisher.com or (00) 800 4566 4566

Alfa Aesar is pleased to offer a line of optical transmission windows for infrared spectroscopy. Disc or rectangular windows are available either polished or unpolished. A polishing kit is offered for those who wish to polish their own windows. Please inquire for sizes not listed. When ordering drilled crystals, please specify center or diagonal drilling.

  • Potassium bromide crystal optic disc, 13mm x 2mm, unpolished
  • Potassium bromide crystal optic disc, 25mm x 5mm, unpolished
  • Potassium bromide crystal optic disc, 32mm x 3mm, unpolished
  • Potassium bromide crystal optic rectangle, 30mm x 15mm x 4mm, unpolished
  • Potassium bromide crystal optic rectangle, 38.5mm x 19.5mm x 4mm, unpolished
  • Potassium bromide crystal optic rectangle, 41mm x 23mm x 6mm, unpolished
  • Potassium chloride crystal optic disc, 13mm x 2mm, unpolished
  • Potassium chloride crystal optic disc, 25mm x 5mm, unpolished
  • Potassium chloride crystal optic disc, 32mm x 3mm, unpolished
  • Potassium chloride crystal optic rectangle, 30mm x 15mm x 4mm, unpolished
  • Potassium chloride crystal optic rectangle, 38.5mm x 19.5mm x 4mm, unpolished
  • Potassium chloride crystal optic rectangle, 41mm x 23mm x 6mm, unpolished
  • Sodium chloride crystal optic disc, 13mm x 2mm, unpolished
  • Sodium chloride crystal optic disc, 25mm x 5mm, unpolished
  • Sodium chloride crystal optic disc, 32mm x 3mm, unpolished
  • Sodium chloride crystal optic rectangle, 30mm x 15mm x 4mm, unpolished
  • Sodium chloride crystal optic rectangle, 38.5mm x 19.5mm x 4mm, unpolished
  • Sodium chloride crystal optic rectangle, 41mm x 23mm x 6mm, unpolished

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