Polymer waveplate #2894

achromatic

Description
Precision achromatic waveplates (retarders) are constructed from a polymer stack laminated between two precision BK7 windows. They are supplied in standard λ/4 and λ/2 retardance options optimized for common visible and near-infrared (NIR) wavelengths. Each unit is mounted in a metal ring with the fast axis clearly marked for alignment.

Key Features

• Broad spectral coverage for visible and NIR applications
• Retardance accuracy: λ/100
• Available in λ/4 and λ/2 retardance types
• Damage threshold: 500 W/cm^2

Additional Information
These achromatic waveplates maintain retardance within 1% for angles of incidence up to ±10°. The polymer-BK7 construction provides stable retardance across the specified spectral range. Units are supplied mounted in a metal ring with the fast axis indicated to simplify integration and alignment in optical setups.

Technical Specifications

• Construction: Polymer stack laminated between two precision BK7 windows
• Retardance options: λ/4 and λ/2
• Retardance accuracy: λ/100
• Angular performance: <1% retardance change over ±10° angle of incidence
• Damage threshold: 500 W/cm^2
• Mounting: Supplied mounted in a metal ring with fast axis clearly marked
• Spectral coverage: Designed for common visible and NIR wavelengths