We offer Nd:YAG multi-order dual wavelength multi-order waveplates for Nd:YAG harmonic wavelengths, which can be separated from the harmonic beam by changing its polarization state. The plates are made of precision-polished quartz. The half-wave plate has a net delay for one harmonic and rotates the plane of polarization by 90°; the full-wave plate has a net delay for the other harmonic and rotates the plane of polarization by 180°. As a result, the two harmonics will appear crossed with linear polarization.
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Catalog Number
ACMA00029733
Product Name
Nd:YAG Multi-Order Dual Wavelength Waveplate, λ/2@1064nm + λ/4@532nm
Thickness
Nominal thickness of waveplate 0.2-1.2 mm
Parallelism
<10 arcsec
Surface Quality
20-10 scr/dig
ClearAperture
17 mm for 20 mm diameter
Damage Threshold
(Laser) 5 J/cm2, 10 nsec, 1064 nm typical
Material
Single crystal quartz
Transmitted Wavefront Distortion
λ/10@633 nm
Retardation
λ/2 @ 1064 nm + λ/4 @ 532 nm
Reflectivity
AR coating R<0.4%
OpticalAxis
normal to facet on circumference of retarder
MSDS
COA
Spec Sheet
Operating at the first and second Nd:YAG laser harmonics;
Hysteresis tolerance <λ/300.