Zero Order Quarter Waveplate 514 nm
Description
A Quarter Waveplate is used to convert linearly polarized beams into circularly polarized beams (and vice versa). The construction of a Quarter Waveplate is such that the fast axis, indicated by the marked line, lies in the surface at 45° to the input polarization. The input beam is resolved into two components of equal amplitude, but each with a different velocity. Applications for Quarter Waveplates include creating circular polarization from linear or linear polarization from circular, ellipsometry, optical pumping, suppressing unwanted reflections (when used in conjunction with a polarizer) and optical isolation (when used with a Polarizing Beamsplitter Cube.). The thickness of a Half Waveplate is such that the phase difference is v (zero order) or 3v, 5v, 7v, etc (multiple orders). A linearly polarized beam incident on a Half Waveplate emerges as a linearly polarized beam but rotated such that its angle to the optic axis is twice that of the incident beam. It is usual to have the fast axis lying in the surface of the retarder at 45° to the input polarization. The Half Waveplate therefore introduces a 90° rotation of the plane of polarization. Ealing Zero Order Waveplates are the preferred type of waveplate. They are not as sensitive to changes in temperature, wavelength, angle of incidence, or collimation. A wavelength shift of 15 nm will result in approximately a 1% retardation change. They are supplied in a 25.4 nm mount.
Zero Order Quarter Waveplate 514 nm
Specifications |
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|---|---|
| Waveplate Type: | Zero Order |
| Material: | Quartz |
| Mounting: | Mounted |
| Shape: | Round |
| Size: | 25.4 mm |
| Center Wavelength: | 514 nm |
| Retardation: | Lambda/4 |
| Retardation Accuracy: | +/- Lambda/200 |
| Wavefront Distortion: | <= Lambda/8 |
| Surface Quality (Scratch-Dig): | 10-5 |
Features
Quarter and half waveplates
Zero or multiple order available
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Ships from:
United States
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On FindLight:
since 2017
Frequently Asked Questions
A Quarter Waveplate is used to convert linearly polarized beams into circularly polarized beams (and vice versa).
A Quarter Waveplate introduces a 90° rotation of the plane of polarization, while a Half Waveplate rotates the plane of polarization by twice the incident beam's angle to the optic axis.
Applications for Quarter Waveplates include creating circular polarization from linear or linear polarization from circular, ellipsometry, optical pumping, suppressing unwanted reflections (when used in conjunction with a polarizer) and optical isolation (when used with a Polarizing Beamsplitter Cube.).
Ealing Zero Order Waveplates are the preferred type of waveplate. They are not as sensitive to changes in temperature, wavelength, angle of incidence, or collimation.
The phase difference of a waveplate is calculated using the formula θ = ± 2vd (ne-no) λ where θ is the phase difference, d is the thickness of the waveplate in mm, ne and no are the refractive indices of the extraordinary and ordinary rays respectively, and λ is the wavelength in nm.