RMI Infrared Brewster Window - ZnSe - Ge - Chalcogenide Glass
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United States
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On FindLight:
since 2015
Description
Our premium optical components are crafted from a variety of high-quality materials, each with its own unique properties to suit diverse applications. These materials include Zinc Selenide (ZnSe), Zinc Sulfide (ZnS), Germanium (Ge), Silicon, Calcium Fluoride (CaF2), Sapphire, Fused Silica, SF, and BK7. Each material is precisely manufactured with a diameter tolerance of +0.0''/-.010'' and a thickness tolerance of ±.010''. This ensures a high degree of accuracy and reliability in performance.
The optical surfaces of these components are meticulously polished to achieve a wedge surface figure of less than 3 arc minutes and a surface quality of 40/20 or better, depending on the material. This level of precision leads to a surface finish that exceeds 85% quality, which is crucial for optimal light transmission and minimal scattering. The chamfer is carefully crafted to a range of .01'' - .03'' at a 45° angle, providing a robust edge that enhances durability while maintaining optical integrity.
Our lenses and flats are designed to cater to a wide range of wavelengths, from the ultraviolet (UV) and visible (VIS) spectrums through to the infrared (IR). This versatility is further enhanced by our specialized coatings, which include narrowband and broadband options for both IR and UV/VIS/NIR applications. These coatings ensure exceptional transmittance and reflectance properties, with narrowband IR coatings offering R ≤ 0.5% at 0° and R ≤ 1.0% at 45°, and laserline coatings achieving R ≥ 99.5% and R ≥ 99.0% respectively.
Whether you require spherical lenses, cylindrical lenses, or plano surfaces, our optical components are engineered to meet the highest standards of precision and performance. Please note that these specifications are intended for reference only and may vary based on specific dimensions and customer requirements. Our commitment to quality and precision ensures that each component is tailored to meet the exact needs of your optical applications.
RMI Infrared Brewster Window - ZnSe - Ge - Chalcogenide Glass
Specifications |
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|---|---|
| Substrate Material: | Chalcogenide Glass, Ge, ZnSe |
| Surface Quality (Scratch-Dig): | 40-20 |
| Wavefront Distortion: | <= Lambda/20 |
| Thickness And Diameter: | Based on customer needs |
Features
- Material Options: ZnSe, ZnS, Ge, Silicon, CaF2, Sapphire, Fused Silica, SF, BK7
- Diameter Tolerance: +0.0''/-.010''
- Thickness Tolerance: ±.010''
- Wedge Surface Figure: < 3 arc min
- Surface Quality: Varies by material (e.g., 40/20 for ZnSe, 10/5 for Fused Silica)
- Clear Aperture Chamfer: .01'' - .03'' @ 45° (varies by material)
- Transmission: > 85%
- Surface Figure: λ/40 @ 10.6µm for infrared materials, λ/4 for others
- Lens Types: Spherical Lens, Cylindrical Lens, Flats/Plano
Applications
- Beam Steering and Separation: Ideal for directing beams without ghost reflections in optical assemblies.
- Interferometry: Minimizes etalon effects for precision measurement systems.
- Spectroscopy Systems: Used in IR and visible spectrometers for reliable optical path management.
- Laser Systems: Suitable for laserline reflection or transmission applications with minimal loss.
- Defense and Aerospace: Integrated in targeting and imaging systems requiring rugged optical components.
- Industrial Inspection: Enables accurate optical alignment and beam deviation in automation systems.
- Research and Development: Supports experimental optical setups demanding precision wedges.
Frequently Asked Questions
Brewster Windows are primarily used in laser cavities to produce a beam with a high degree of polarization purity. They are also an economical option for coupling linearly polarized light into sealed optical systems and to select the polarization of light traveling in optical cavities.
Brewster's angle can be calculated using the following equation: θB=Arctan(nw/na) where θB is Brewster's angle and nw and na are the indices of refraction for the window and the ambient respectively. na is usually assumed to be 1 for air.
The available materials for the RMI Infrared Brewster Window are ZnSe, ZnS, Ge, Silicon, CaF2, Sapphire, Fused Silica, and SF.
The surface quality of the RMI Infrared Brewster Window is greater than 85%.
The thickness tolerance of the RMI Infrared Brewster Window is ±.010''.