SIGMAKOKI Quartz Waveplate 441.6nm　WPQ-4416-4M

Feature

• Zero-order wave plate made of two crystal plates.
• It can be used for polarization experiments using various lasers.
• Since it is a zero-order waveplate, the phase difference changes due to temperature and wavelength changes are small and very stable.
• There are two types of wave plates: a 1/2 wave plate that can rotate the polarization direction and a 1/4 wave plate that can convert linearly polarized light into circularly polarized light.
• The two elements are bonded together by optical contact, and the front and back surfaces are coated with an anti-reflection film, resulting in high transmittance.
• * If light of a wavelength other than the adaptive wavelength is injected, the phase difference will not be as specified.
• * If the wavelength is shifted by 1%, the phase difference between the 1/2 wave plate and the 1/4 wave plate will be 1.8 degrees and 0.9 degrees, respectively.
• * The thickness of the frame (6.3 mm) may vary depending on the device specifications.
• * Do not touch the screws on the waveplate frame.
• * The characteristics may deteriorate or the device may fall off.
• * If a strong impact is applied to the waveplate frame, the optical contact may come off and the transmittance may decrease.

Specifications

• [ common specification]
• Material: Crystal
• Frame material: Aluminum surface treatment: Black anodic oxide
• Effective range: 17 x 17mm
• Substrate surface accuracy: λ/10
• Beam polarization angle: ＜5″
• Coating: Double-sided reflective prevention film (2 faces)
• Retardation error: <λ/50 (λ < 400nm), λ/100 - λ/200 (400nm＜λ＜700nm) , λ/200 - λ/500 (700nm＜λ)
• Transmittance: ＞98.5％
• Laser durability (reference value): 1J/cm2 (pulse width 10ns, Repeat frequency 20Hz)
• Scratch - dig: 20?10
• [Individual specification]
• Type: λ/4
• Adaptive wavelength: 441.6nm
• Retardation in the design: 110.4nm
• RoHS conform product