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![[ Altechna ]<Br>Mid-IR Waveplates](/thum_img/mjct/goods_img3/ed9e5811cecbd994edbf9ecd52f8dfd1_water_4de0b559c44a49f5f544fca08f3bc282_c0_w500_h500.jpg)
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Mid-IR waveplates
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 11μm.
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 3μm and 6μm 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 > 10mm |
λ/4 retardation, clear aperture > 10mm |
Transmitted wavefront distortion, P-V |
|
2940 |
2-IRPW-ZO-L2-2940-C |
2-IRPW-ZO-L4-2940-C |
<λ/8 |
|
3000 |
2-IRPW-ZO-L2-3000-C |
2-IRPW-ZO-L4-3000-C |
<λ/8 |
|
3500 |
2-IRPW-ZO-L2-3500-C |
2-IRPW-ZO-L4-3500-C |
<λ/8 |
|
4000 |
2-IRPW-ZO-L2-4000-C |
2-IRPW-ZO-L4-4000-C |
<λ/8 |
|
4500 |
2-IRPW-ZO-L2-4500-C |
2-IRPW-ZO-L4-4500-C |
<λ/8 |
|
5000 |
2-IRPW-ZO-L2-5000-C |
2-IRPW-ZO-L4-5000-C |
<λ/8 |
|
5500 |
2-IRPW-ZO-L2-5500-C |
2-IRPW-ZO-L4-5500-C |
<λ/8 |
|
6000 |
2-IRPW-ZO-L2-6000-C |
2-IRPW-ZO-L4-6000-C |
<λ/8 |
|
6500 |
2-IRPW-ZO-L2-6500-C |
2-IRPW-ZO-L4-6500-C |
<λ/8 |
|
7000 |
2-IRPW-ZO-L2-7000-C |
2-IRPW-ZO-L4-7000-C |
<λ/8 |
|
Wavelength, nm |
λ/2 retardation, clear aperture > 10mm |
λ/4 retardation, clear aperture > 10mm |
Transmitted wavefront distortion, P-V |
|
2940 |
2-IRPW-ZO-L2-2940 |
2-IRPW-ZO-L4-2940 |
<λ/8 |
|
3000 |
2-IRPW-ZO-L2-3000 |
2-IRPW-ZO-L4-3000 |
<λ/8 |
|
6000 |
2-IRPW-ZO-L2-6000 |
2-IRPW-ZO-L4-6000 |
<λ/8 |
