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Sapphire optical components are used for their extreme durability and strength in the UV, visible, and near infrared. Esco works with only the highest quality, optical grade sapphire, that is essentially 100% pure. Our standard product line includes Circular Sapphire (Random Orientation).

Advantages include:

  • Extremely wide transmission spectrum
  • High melting temperature
  • High thermal conductivity
  • Low thermal expansion in high temp environments
  • Highly resistant to scratching, abrasions, and a variety of chemical acids or alkalis
  • Much stronger than other optic materials*

*Sapphire is the hardest natural substance next to diamond. Its extreme hardness makes it difficult to polish using standard techniques; high optical quality finishes are not always possible.

If you have a custom application requiring precision Sapphire optics and specialty coatings, please contact us for more information.