RMI Brewster Window - BK7 - FS - UVFS
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Ships from:
United States
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On FindLight:
since 2015
Description
Discover our comprehensive range of optical materials, meticulously crafted to meet the highest standards of precision and quality. Whether you're in search of Zinc Selenide (ZnSe), Zinc Sulfide (ZnS), Germanium (Ge), Silicon, Calcium Fluoride (CaF2), Sapphire, Fused Silica, SF, or BK7, our selection offers unparalleled performance with a commitment to excellence. Each material is manufactured with stringent tolerances, ensuring a diameter of +0.0''/-.010'' and a thickness tolerance of ±.010''. This allows for seamless integration into various optical systems, providing the reliability and accuracy your applications demand.
Our optical components boast a wedge surface figure of less than 3 arc minutes and a surface quality of 40/20 or better, depending on the material. With a surface precision of λ/40 @ 10.6µm for materials like ZnSe and Ge, and λ/4 for CaF2 and Sapphire, these components are designed to deliver exceptional clarity and performance. The high surface quality ensures that over 85% of light is transmitted, making them ideal for high-precision optical applications. The careful chamfering of edges, ranging from .01'' to .03'' at a 45° angle, further enhances durability and ease of handling.
Our optical products are available in various types, including spherical lenses, cylindrical lenses, and flats/plano configurations, catering to a wide range of optical needs. The coatings are optimized for different wavelength ranges, such as narrowband and broadband IR, UV/VIS/NIR, and laserline applications. With reflectance values as low as R ≤ 0.25% for narrowband UV/VIS/NIR and transmittance levels exceeding 99.5% for laserline coatings, these components are engineered to maximize optical efficiency. Whether you require narrowband or broadband solutions, our products are designed to meet your specific requirements, ensuring optimal performance across diverse optical systems.
RMI Brewster Window - BK7 - FS - UVFS
Specifications |
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|---|---|
| Substrate Material: | BK7, UV Fused Silica, Fused Silica |
| Surface Quality (Scratch-Dig): | 10-5 |
| Wavefront Distortion: | <= Lambda/10 |
| Thickness And Diameter: | Based on customer needs |
Features
- Material Options: ZnSe, ZnS, Ge, Silicon, CaF2, Sapphire, Fused Silica, SF, BK7
- Diameter Tolerance: +0.0''/-0.010''
- Thickness Tolerance: ±0.010''
- Wedge Surface Figure: < 3 arc min
- Surface Quality: 40/20 for ZnSe, ZnS, Ge, and Silicon; 20/10 for CaF2 and Sapphire; 10/5 for Fused Silica, SF, BK7
- Clear Aperture (CA) Chamfer: 0.01'' - 0.03'' @ 45° for most materials; 0.02'' @ 45° for ZnSe, ZnS, Ge, Silicon, CaF2, Sapphire, Fused Silica, SF, BK7
- Surface Figure: λ/40 @ 10.6µm for ZnSe, ZnS, Ge, and Silicon; λ/4 for CaF2 and Sapphire; λ/10 for Fused Silica, SF, BK7
- Transmittance: > 85%
- Lens Types: Spherical Lens, Cylindrical Lens, Flats/Plano
Applications
- Infrared Imaging Systems: For thermal cameras and environmental monitoring requiring IR transparency
- Laser Optics and Beam Steering: Ideal for high-power CO₂, YAG, and IR lasers due to low absorption and high damage threshold
- Spectroscopy and Metrology: Enables accurate analysis across UV, VIS, NIR, and IR spectra
- Defense and Aerospace Systems: Robust optical windows for harsh operational environments
- Scientific Instrumentation: Suitable for interferometers, polarizers, and research-grade optical assemblies
Frequently Asked Questions
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.
Brewster Windows are an economical option for coupling linearly polarized light into sealed optical systems and to select the polarization of light traveling in optical cavities.
Brewster Windows are windows designed for use at Brewster's angle (usually uncoated). This is the angle where only incident p-polarized light has 0% transmission loss.
The surface quality of Brewster Windows is greater than 85%.
The thickness tolerance of Brewster Windows is ±.010''.