» Mid-IR Waveplates

Polarization Optics Waveplates

Mid-IR Waveplates

Polarization Optics Waveplates

Mid-IR Waveplates

Wavelength range, μm

2.8 – 11

Surface quality, S-D

60-40

Transmitted wavefront distortion, PV

<λ/4 – λ/8 @ 632.8 nm

Retardation tolerance @ 20 °C

±λ/40 – λ/100

Clear aperture

Ø10 – 15 mm

AR coatings

On request

Mounting

Black anodized metal mount

Typical Items: Mid-IR Waveplates

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Mid-IR waveplates are used to manipulate the polarization state of light in the mid-infrared region. Altechna offers half (λ/2) and quarter (λ/4) zero-order waveplates in a range of 2.8 to 11 μm.

Zero-order waveplates provide a wide bandwidth and acceptance angle, as well as low sensitivity to temperature. Mid-IR waveplates are coated with a dielectric AR coating to reduce losses caused by Fresnel reflection. Specially developed AR coatings with minimized OH absorption provide the best possible transmission values for 3 μm and 6 μm waveplates.

Mid-IR waveplates are mounted into a metal holder with an indicated fast axis for easier handling and adjustment.

Typical Items for Mid-IR Waveplates

Wavelength, nm	λ/2 retardation, clear aperture >10 mm	λ/4 retardation, clear aperture >10 mm
	Product ID	Product ID
2940	2-IRPW-ZO-L2-2940-C	2-IRPW-ZO-L4-2940-C
3000	2-IRPW-ZO-L2-3000-C	2-IRPW-ZO-L4-3000-C
3500	2-IRPW-ZO-L2-3500-C	2-IRPW-ZO-L4-3500-C
4000	2-IRPW-ZO-L2-4000-C	2-IRPW-ZO-L4-4000-C
4500	2-IRPW-ZO-L2-4500-C	2-IRPW-ZO-L4-4500-C
5000	2-IRPW-ZO-L2-5000-C	2-IRPW-ZO-L4-5000-C
5500	2-IRPW-ZO-L2-5500-C	2-IRPW-ZO-L4-5500-C
6000	2-IRPW-ZO-L2-6000-C	2-IRPW-ZO-L4-6000-C
6500	2-IRPW-ZO-L2-6500-C	2-IRPW-ZO-L4-6500-C
7000	2-IRPW-ZO-L2-7000-C	2-IRPW-ZO-L4-7000-C
7500	2-IRPW-ZO-L2-7500-C	2-IRPW-ZO-L4-7500-C
8000	2-IRPW-ZO-L2-8000-C	2-IRPW-ZO-L4-8000-C
9000	2-IRPW-ZO-L2-9000-C	2-IRPW-ZO-L4-9000-C

Uncoated
2940	2-IRPW-ZO-L2-2940	2-IRPW-ZO-L4-2940
3000	2-IRPW-ZO-L2-3000	2-IRPW-ZO-L4-3000
6000	2-IRPW-ZO-L2-6000	2-IRPW-ZO-L4-6000

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Mid-IR Waveplates

Mid-IR Waveplates

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Typical Items for Mid-IR Waveplates

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