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RMT specializes in the production of optical windows engineered for clarity, durability and reliability in even the most challenging applications. We transform advanced materials into a flawless barrier that protects sensitive internal components without compromising optical performance.

Engineered from the Right Material

We select the ideal substrate to meet your specific requirements for transmission, strength and environmental resistance. Our expertise encompasses a wide range of materials, including:

·         Germanium (Ge)
Ideal for high-performance thermal imaging, Germanium offers excellent transmission in the critical mid-wave to long-wave infrared (MWIR to LWIR, 2-14 µm) spectrum. Its primary application is in thermal cameras, night vision and gas detection systems. To maximize its performance, we apply specialized anti-reflective (AR) coatings to counter its high refractive index. Note that its transmission decreases at elevated temperatures.

·         Silicon (Si)
A cost-effective and reliable material for the MWIR range (1-7 µm), Silicon is widely used in commercial thermal imaging and IR sensors. It benefits from scalable manufacturing and good mechanical strength. We enhance its inherent transmission with custom AR coatings, delivering high performance at an optimized value.

·         Sapphire (Al₂O₃)
The ultimate solution for extreme environments, Sapphire combines remarkable hardness, chemical inertness and high-temperature stability. Transmitting from the UV to the mid-IR (0.15-5 µm), it is the material of choice for demanding aerospace and industrial applications where unmatched durability is required.

·         Beryllium (Be)
The optimal material for high-energy applications, Beryllium offers an unmatched combination of lightweight strength and superior X-ray transparency. Composed of high-purity material, these windows efficiently transmit X-rays while maintaining structural integrity under high pressure and temperature. Their exceptional robustness and precision also make them ideal for advanced scientific instruments where exact X-ray control is paramount.

·         And Others: Including various glasses and salts tailored to specialized spectral bands.

Complete Integration & Sealing

Our windows are not just components; they are system elements designed for seamless integration.

·         Custom Package Compatibility: We design and produce windows for any type of corresponding package—from standard TO headers to custom packages. Every window is precision-matched to ensure a perfect fit and optimal function.

·         Vacuum-Tight Integrity: Each assembly undergoes rigorous vacuum-tight sealing verification. We employ advanced leak testing methods to guarantee the long-term hermeticity essential for protecting sensitive detectors and electronics from moisture and contamination.

Maximized Optical Performance

To ensure your system operates at peak efficiency, we apply precision Anti-Reflective (AR) coatings tailored to your window’s material and target wavelength. These coatings significantly increase transmission, reduce stray light and enhance signal-to-noise ratio for the clearest possible optical path.

From raw material selection to final hermetic seal verification, RMT controls every step of the manufacturing process. The result is an optical window that delivers guaranteed performance, withstands stringent environmental tests, and provides reliable service in your critical application.

Let us provide the clear solution for your system. Contact our engineering team to discuss your optical window requirements.