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Dual Wavelength Waveplate
Dual wavelength waveplates are multi-order waveplates designed to meet specific delays at two different wavelengths at the same time. The combinations can be λ/4+λ/4, λ/2+λ/2, λ/4+λ/2, λ/4+λ, λ/2+λ. For example, the λ/2@800nm + λ@400nm dual wavelength waveplate rotates the fundamental polarization of Ti:Sapphire by 90°, while the polarization of the second harmonic remains unchanged. It's used for type I THG in Ti:saphhire laser experiment. SHG: 800nm(o)+800nm(o)-->400nm(e), WPD+THG: 800nm(o) + 400nm(o) --> 267nm(e)
Specifications of dual-wavelength waveplate
Material:
Premium-grade quartzDimension Tolerance:
+0.0/-0.1mmParallelism:
<1 arc secondSurface Quality:
20-10Wavefront Distortion:
λ/8@633nmRetardation Variation:
<λ/300 waveClear Aperture:
90% centralCoating:
AR-coating R <0.2%Damage Threshold:
>500 MW/cm² 1 ns 1064 nmMount:
Optional, black anodized aluminumWavelength:
Custom design available.OptoCity offer the highest quality waveplates at very competitive price. Standard low-order waveplates are available in stock. OEM micro size waveplates, custom design including optical axis mark are available upon request.