DMSP900 Dia:1in Shortpass Dichroic Mirror; 900 nm Cut-On

The DMSP900 Dia:1in Shortpass Dichroic Mirror is a circular mirror with a diameter of 1 inch (25.4 mm) and a thickness of 3.2 mm. This mirror is manufactured by Thorlabs, a leading vendor in the optical industry, and is available for purchase on their official website, where it is currently in stock.

This mirror is specifically designed for use as a dichroic mirror, a type of optical element that reflects one wavelength range while transmitting another. In this case, the DMSP900 has a cut-on wavelength of 900 nm, meaning it reflects wavelengths shorter than 900 nm and transmits wavelengths longer than 900 nm. This makes it an ideal component for applications that require the separation of infrared and visible light.

The mirror's coating is another key feature. The front surface of the mirror is coated with a thin film of material specifically designed to enhance its dichroic properties. This coating, identified as "tho dmsp900" in the item data, ensures the mirror's high reflectivity for short wavelengths and high transmissivity for long wavelengths.

The mirror's shape is described as a "Thin Lens" in the item data, suggesting that it may have some focusing or diverging properties. However, without additional information, it is difficult to provide a detailed explanation of these properties.