Broadband anti reflection (BBAR) silicon Si window panel

Xiaoxiao Photon's BBAR (broadband anti reflection) silicon window is designed specifically to optimize optical performance, with excellent transmittance and low reflection characteristics, suitable for a wide range of optical applications, including laser systems, infrared imaging, and sensor devices.

IR polished KRS5 thallium bromide iodide window plate 0.6-40um (TlBr TlI circular window plate Thallium Bromo Iodide)

KRS5 deep infrared material has a high refractive index and is widely used in ATR prism, window and lens spectroscopy. Combined with germanium, KRS5 can also be used for non thermal insulation IR imaging systems. KRS-5 is grown using sealed Stockbarger crystal growth technology. Select high-purity starting materials to ensure the absence of anion absorption bands between 2 μ m and 16 μ m, and check the quality of all crystals by using a path length of 120mm. Attention: Thallium salts are considered toxic and should be handled with caution.

Potassium bromide KBr window crystal transmission range 0.23-25 μ m

KBr potassium bromide is one of the useful materials for universal spectral window and applications with no significant impact on humidity sensitivity. KBr is the most commonly used spectroscopic material for IR spectrophotometers. Potassium bromide is grown using Kyropoulos technology. Potassium bromide is prone to cracking and can be polished to higher standards under humidity control conditions.

IR polished Al2O3 circular sapphire window panel 0.17-5.5um (Al2O3 window panel)

Sapphire Al2O3 can be well applied as an optical window material for UV, VIS, and NIR spectral bands due to its extreme toughness and strength. Sapphire has multiple growth modes. The Verneuil and Czochralski methods are commonly used for standard grade sapphire materials. Higher quality sapphire, grown and manufactured by Kyropoulos for electronic substrates, can achieve very high purity and excellent UV transmission properties. The usage range in IR is limited to about 5 μ m and encounters few difficulties at any optical level. It is in the ultraviolet range and must be observed carefully because the transmission from 140nm to 240nm is very sensitive to impurities and interstitial vacancies. Large pieces of sapphire can be made by ribbon growth. Sapphire has a slight birefringence, and the typical IR window is usually cut from the crystal in a random manner. There are also specific applications for birefringence where orientation is chosen. Usually, this is a "zero degree" material where the optical axis is at a 90 degree angle to the surface plane. Synthetic optical sapphire is not colored. *Please note that all manufacturers seem to have inconsistent actual numbers for thermal expansion!