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Super Polished Optics
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  • Super Polished Optics

  • CASTECH offers super polished optics with surface roughness down to 1Å.
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Introduction

The emerging demands of ultraprecision optics driven by the industries of Semiconductor, Space Optics and Laser fusion requires not only high precision form accuracy but also super smooth surface on molecular scale.

CASTECH offers super polished optics with extremely smooth surfaces. Our unique technology could process a surface roughness below 1 Ǻ roughness on plano surface made from Fused silica. We will be happy to help you determine the roughness values on basis of customized size, surface shapes and materials.

Features

  • Surface roughness down to 1Å (substrate made from Fused Silica)
  • Ultra-low surface scatter
  • Flatness: λ/10
  • Surface quality: 10-5 S/D
  • High laser damage threshold

 

Metrology

The measurement of roughness is carried out by our Zygo New View 8300 coherence scanning interferometer or Atomic Force Microscopy (AFM) with excellent precision and accuracy.

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