AHWP3 - Half Waveplates
Eliminate single wavelength waveplates with just one component. The achromatic halfwave retarder rotates the incoming plane of polarization by twice the optic axis angle. The most common rotation is 90˚ (optic axis at 45˚). Our achromatic retarders are known to have very large clear apertures and precise polarization rotation. This broadband waveplate is a favorite among the micro display (white light) and analytic instrumentation (LEDs, laser diodes, multi-light source) application markets.
AHWP3
Vis Achromatic Halfwave Retarder
Active Range: 425nm-750nm
Price competitive
True zero order
Wide angle of acceptance
Very large clear apertures
Multi layer polymer stack
Ultra wide Visible / Short NIR bandwidth
Free standing or laminated between glass
BBAR coated directly onto polymer optional
Large aperture available, 100mm OD
Specification Focus
.01 waves tolerance
99% internal transmittance
Index of refraction = 1.58
Performs at 405nm (.02 waves)
BBAR on raw polymer: R ≤ .75% per surface Avg.
AHWP3 – Standard Halfwave Achromat Specifications
Birefringent Material
Polymer, sandwiched between BK-7 substrates
Recommended Wavelength Range
λ/2, over visible region from 425 – 750nm
Surface Quality
40-20 Scratch-Dig
Substrates
BK-7, grade-A, fine annealed
AR Coating
R ≤ 0.65% loss per surface (normal incidence) average, BBAR 400-900nm wavelength range
Size
25.4mm outer diameter, 80% clear aperture (20mm)
Acceptance Angle
± 15 degrees
Unit Thickness
4.35mm +/- .20mm
Optic Axis Stability
≤ 2 degree
Wavefront Distortion
λ/4 @ 632.8nm
Temperature Range
20° C to 40° C
Wedge
≤ 2 minutes
Damage Threshold
CW: 500 Watt/cm2
Vis Pulsed: .3 J/cm2 10 nsec pulses @ 532nm
Free Standing Achromatic Waveplates
OEM cost effective achromatic half waveplates. Bolder Vision now offers lower-cost, achromatic, free standing polymer (FSA) waveplates. This achromat has no outer substrates and is ideal for integration into any production optical system because of low price and flexibility. Can be dual side anti-reflection coated for increased transmission.
Advantages of free standing achromat
Distinctly useful for OEM applications
Form Factor – Free standing waveplates can be sliced or die cut specifically for custom applications. This capability affords optic system designers to shrink their form factor size, dramatically decrease their cost per unit and expand design options.
AR Coatings – BBAR coatings on one side or both sides of FSA waveplates. Laminate onto pre-existing substrates (AR coating one side) or as a free standing retarder component (AR coating both sides).
Cost – Per unit cost contracts due to less raw materials and labor. The retardation characteristics are exactly the same as our standard product. Some designs do not call for low transmitted wavefront or high abrasion resistance. If this is true for you, the free standing polymer achromatic waveplate may be a wise choice to consider.
Environmentally Stable – The multi layer polymer stacks are optically fused using no adhesives. This fact results in a robust monolithic retarder that has sound environmental specs, high transmittance and a singular index of refraction.
描述 [描述] Active Range: 425nm-750nm