The highly efficient Harrick Wire Grid Polarizer consists of a wire grid that is holographically deposited onto a KRS-5 substrate. This polarizer has a wide spectral range from 5000 cm⁻¹ to 285 cm⁻¹. The thin profile of this polarizer makes it convenient for applications in which there are space constraints. The general-purpose model is mounted into a fully 0° to 360° rotatable slide plate. Accessory-specific configurations of this polarizer are designed to fit the Harrick Seagull, VariGATR/GATR, and FastIR accessories. This polarizer is ideal for removing interference fringes from transmission spectra recorded at Brewster’s angle and excellent for obtaining optimum sensitivity for reflectance measurements.
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Wire Grid Polarizer Slide plate mounted FTIR polarizer (KRS-5 substrate) |
Model No. PWG-U1R |
Price N/A |
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| Model No. | Product | Description | Price | |
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| BXH-S1G | Brewster's Angle Sample Holder |
Variable angle transmission accessory for UV-Vis and FTIR |
N/A |
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| HON-L-XXX | Horizon™ Liquid Sampler |
Multiple reflection, ZnSe ATR with trough |
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| HON-S-XXX | Horizon™ Solid Sampler |
Multiple reflection, ZnSe ATR with pressure applicator |
N/A |
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| RGR-XXX-3 | RefractorReactor™ |
Grazing angle specular reflection, Variable Temperature and Pressure, 24V |
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| VAT2-XXX | Variable Angle Transmission Accessory |
Transmission measurements of solids up to 6mm thick |
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| VR1-XXX | Variable Angle Reflection Accessory |
Variable angle specular reflection accessory |
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| Model No. | Product | Description | Price | |
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| PWD-FAS-XXX | Wire Grid Polarizer, FastIR | FastIR Polarizer (KRS-5 Substrate), includes mount | N/A |
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| PWD-FAS-XXX | Wire Grid Polarizer, FastIR | FastIR Polarizer (KRS-5 Substrate), includes mount | N/A |
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| PWD-GATR-XXX | Wire Grid Polarizer, VariGATR | VariGATR Polarizer (KRS-5 Substrate), includes mount | N/A |
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| PWD-GATR-XXX | Wire Grid Polarizer, VariGATR | VariGATR Polarizer (KRS-5 Substrate), includes mount | N/A |
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| PWG-SEA | Wire Grid Polarizer, Seagull | Seagull™ FTIR polarizer (KRS-5 Substrate) | N/A |
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Download Wire Grid Polarizer data sheet (pdf)
Download Wire Grid Polarizer Application Notes:
| Wire Grid Polarizer | |
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The Wire Grid Polarizer consists of regularly spaced thin strips of parallel conductive wires. When the polarizer is placed perpendicular to the incoming radiation, the wires transmit the component of the electric field that is perpendicular to the wires, and reflect the component parallel to the wires. The efficiency of a wire grid polarizer depends on the conductivity of the wire and also on the ratio of the grid spacing (d) to the wavelength of interest (λ). In theory, all types of parallel grids are efficient polarizers when the ratio of the grid spacing to the wavelength of interest (d/λ) is <<1. In practice, good agreement is obtained between measured and theoretical values when d/ λ <0.5 and when higher conductivity wires are used. Polarizer performance is generally characterized by:
Other commonly used measures of performance deduced from K1 and K2 are the degree of polarization or efficiency and the extinction ratio, whose formulas are shown in Table 1.
Table 1: Wire Grid Polarizer (KRS-5 substrate) Specifications. |
Our Wire Grid Polarizer offers high efficiency in a compact form. With its holographically deposited wire grid on a KRS-5 substrate, it is suitable for use from 5000cm-1 to 285cm-1. Table 1 summarizes its specifications. The transmission efficiency from the wanted and unwanted components, in addition to the degree of polarization and extinction ratio, from a typical polarizer are shown in Figures 1 and 2 respectively. Note that there are some artifacts from the manufacturing process that appear as absorption bands in the wanted component (K1, Table 1).
Figure 1. Transmission efficiency for the wanted (K1) and unwanted (K2) components of a typical wire grid polarizer (KRS-5 substrate).
Figure 2. Degree of polarization (efficiency) and extinction ratio of a typical wire grid polarizer (KRS-5 substrate). |
