Advanced Thin Films 105905 S1 FS Thick Witness Sample

The Advanced Thin Films 105905 S1 FS Thick Witness is a fused silica (FS) thick witness sample used for monitoring and verifying optical coating performance during deposition processes. Designed to replicate the coating characteristics of production optics, this witness sample provides a reliable reference for reflectance, transmission, or absorption measurements without risking primary components. Fused silica construction ensures excellent thermal stability, low absorption, and high optical quality, making it suitable for laser and precision optical applications.

Key Features

• Manufacturer: Advanced Thin Films

• Part Number: 105905

• Material: Fused Silica (FS)

• Type: Thick witness sample

• Surface: S1 coated (per deposition run)

• Application: Optical coating verification and process control

• Suitable for laser and high-precision optical systems

Typical Applications

• Thin-film coating process monitoring

• Laser optics verification

• Optical R&D and quality assurance

• Spectrophotometric testing