A waveplate or retarder is an optical device that alters the polarization state of a light wave traveling through it. Two common types of waveplates are the half-wave plate, which shifts the polarization direction of linearly polarized light, and the quarter-wave plate, which converts linearly polarized light into circularly polarized light and vice versa.
PSG offers a multitude of varieties and configurations including, Multiple-Order, Zero-Order, Dual-Wavelength, Ultra-Thin, and Low-order wave plates.
|Thickness Range||Varies on product|
|Transmitted Wavefront Distortion||λ/10 @ 632.8nm over CA|
|Surface Quality||10-5 over CA|
|Parallelism||0.5 arc seconds|
|Clear Aperture (CA)||≥ 85% of Central Dimension|
|Retardation Tolerance||λ/100 – λ/600 typical – W/L Dependent|
|Damage Threshold||1MW / cm² (CW), 10J cm² 10ns Pulse|
|Material||Synthetic Single Crystal Quartz|
|Coating||AR “V” Coat; R<0.25% per surface. BBAR Coat:
R avg ≤0.50% per surface
Waveplates can be ordered as mounted or unmounted components.