Air Gap Waveplate 25.4mm (1 inch) Diameter Wavelength 343nm λ/2
WPQG-3430-2M
Air spaced two piece waveplates are suitable for use with high-energy lasers (no optical contact occurs).For Nd-YAG lasers and Yb lasers, there is a lineup from fundamental to 4th harmonic.
◦These products utilize birefringence of quartz and give phase difference of λ/4 (π/2, 90°) or λ/2 (π, 180°) to the input beams. 
◦λ/4 retarders convert linearly polarization to circularly and circularly polarization to linearly. λ/2 retarders convert the direction of polarization arbitrarily.
◦Air spaced type waveplates are zero-order (first-order) retardation plates (phase plates) which are assembled from pairs of crystalline quartz plates and are mounted on aluminum frames.
◦Custom-made air spaced type waveplates for other wavelengths (248nm, 257nm, 308nm etc.) are also available.
◦λ/4 retarders convert linearly polarization to circularly and circularly polarization to linearly. λ/2 retarders convert the direction of polarization arbitrarily.
◦Air spaced type waveplates are zero-order (first-order) retardation plates (phase plates) which are assembled from pairs of crystalline quartz plates and are mounted on aluminum frames.
◦Custom-made air spaced type waveplates for other wavelengths (248nm, 257nm, 308nm etc.) are also available.
| Name | Air Gap Waveplate 25.4mm (1 inch) Diameter Wavelength 343nm λ/2 | 
|---|---|
| Weight | 0.0150kgs | 
| Standard Coatings Available | No | 
| Guide | 
                            
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| Remark | - | 
| Attention | 
                            
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| Diameter | φ30mm | 
| Image Label | Air Gap Waveplate 25.4mm (1 inch) Diameter Wavelength 343nm λ/2 | 
| Material | Crystalline quartz | 
| Material of frame | Aluminum (Finishing ; Black Anodized) | 
| Surface flatness | λ/10 | 
| Angular deviation of beam | <5″ | 
| Coating | Antireflection Coating on both side (Total 4 surfaces) | 
| retardation tolerance | 
                                <λ/50 (λ<400nm)  λ/100〜λ/200 (400nm<λ<700nm) λ/200〜λ/500 (700nm<λ)  | 
                        
| Transmittance | >98% | 
| type | λ/2 | 
| Diameter | φ30mm | 
| Wavelength range | 343nm | 
| Clear aperture | □15mm | 
| Theoretical retardation | 171.5nm | 
| Laser Damage Threshold<sup>*</sup> | 4J/cm | 
| Availability | Please contact | 
            In stock
        
    
            SKU
        
WPQG-3430-2M
    
    
                £979.60
                            
            
            
Air spaced two piece waveplates are suitable for use with high-energy lasers (no optical contact occurs).For Nd-YAG lasers and Yb lasers, there is a lineup from fundamental to 4th harmonic.
    
