Quartz waveplate SB-RETAX-5L-1/4λ

Product overview
Constant linear quarter-wave (1/4λ) retardance is maintained across the visible to near-infrared range (450–1100 nm) when linearly polarized light passes through this waveplate. The plate is manufactured by laminating birefringent resin films between optical glass or quartz substrates, providing optical performance suitable for industrial and scientific applications. Use of resin films permits fabrication of diameters greater than 30 mm and enables wavelength-specific optical design customization.

Circular polarizer function
Combining the SB-RETAX-5L-1/4λ with a broadband polarizer produces a super broadband circular polarizing plate: the constant 1/4λ retardation over 450–1100 nm converts incident light to circular polarization and the assembly can act as an isolator to block reflected light from reflective surfaces.

Specification
Item number: SB-RETAX-5L-1/4λ-20; SB-RETAX-5L-1/4λ-25; SB-RETAX-5L-1/4λ-30
Options:

• Without axis marks to indicate an optical axis direction
• Size and shape other than standard products available; inch sizes can be converted to metric
• Mass production available

Technical specifications

• Type: Super broadband waveplate (5 layers)
• Retardance: constant linear 1/4λ
• Wavelength range: 450 nm to 1100 nm (VIS to NIR)
• Construction: laminated birefringent resin films within glass substrates (optical glass, quartz)
• Typical maximum size: more than 30 mm diameter (fabrication possible)
• Item numbers: SB-RETAX-5L-1/4λ-20; SB-RETAX-5L-1/4λ-25; SB-RETAX-5L-1/4λ-30
• Axis marks: not included by default
• Customization: size/shape customization and inch-to-metric conversion available
• Application: can be combined with a broadband polarizer to produce a circularly polarizing plate functioning as an isolator to block reflected light