2-APW-L/4-012C - λ/4 Achromatic waveplate, >12 mm clear aperture, 650-1100 nm

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US$520.00

Achromatic waveplate (AWP) is a pair of crystal quartz and magnesium fluoride plates.

AR coatings	BBAR(R<0.5%) on each surface
Clear Aperture, mm	>12
Dimension Tolerances, mm	+0.0/-0.2 mm
Laser Damage Threshold, J/cm²	>8 J/cm² @1064 nm, 10 ns (for 650-1100 nm waveplates)
Material	High-purity crystalline quartz and magnesium fluoride
Parallelism Error, arcsec	<5
Retardation	λ/4
Retardation Tolerance	<λ/100 @20 °C
Surface Quality, S-D	40/20
Wavefront Distortion	<λ/8 @632.8 nm
Wavelength, nm	650-1100
Delivery	2-4 weeks
Mounting	Mounted in Ø25.4x 6 mm black anodized metal mount

Description

Details

Because of difference in dispersion in these uniaxial positive crystals it is possible to calculate thickness of each plate so that birefringent phase shift in assembly changes very slowly over certain wavelength range. This is a way to obtain achromatic zero order waveplates. Such AWPs are necessary for various devices and may replace a number of ordinary quartz waveplates operating at a single wavelength only. We can offer a series of achromatic waveplates.

Features

Operates over broad wavelength range

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