エドモンド・オプティクス・ジャパン Official site

■Transmission main wavelength band of 1.2~7μm ■Available with uncoated or AR coating for 1.65 - 5μm ■Low specific gravity; ideal for lightweight optical systems *You can download the catalog from Edmund Optics Japan that features this product from the link below.*

Silicon (Si), a semiconductor material, is commonly used in infrared optical systems that utilize the wavelength range of 3 to 5 μm. Due to its high thermal conductivity, lightweight, and hardness, Si is also used as a substrate for laser mirrors. Its refractive index is relatively high at around 3.4 in the aforementioned wavelength range, resulting in significant transmission loss due to surface reflection (Fresnel reflection). Therefore, anti-reflective coatings are typically required. Edmund Optics' Si windows employ anti-reflective coatings that effectively function in the 3 to 5 μm range. Uncoated windows can be used as intermediate products when custom coatings are applied. Furthermore, Si has a specific gravity of 2.33 g/cm³, which is less than half that of Ge or ZnSe, making it the lightest material among infrared transmission materials. This greatly contributes to the lightweight design of optical systems. For information on the product lineup, specifications, and sales prices of standard products, please visit the relevant product page on the official website of Edmund Optics Japan (accessible via the product homepage link above). *You can download the catalog from Edmund Optics Japan that includes this product from the link below.

Edmund Optics (EO) is a leading company in optical components, imaging, and photonics technology. It supports markets worldwide, including R&D, electronics, semiconductors, pharmaceuticals, and biomedical fields. EO's products are used in a wide range of applications, from DNA analysis to retinal-based personal identification and high-speed FA applications. With the fusion of EO's latest manufacturing capabilities and global logistics network, it is recognized in the market as the No. 1 supplier of optical components available for stock sale. Customers in Japan are served by the local subsidiary, Edmund Optics Japan Co., Ltd.