Semrock's TLP01-628-25x36 is a high-quality, rectangular longpass filter designed for applications requiring precise wavelength selection. This filter, with a catalog number FL-009786, is available for purchase from the IDEX website and is currently in stock.
The TLP01-628-25x36 filter is made of fused silica, specifically the material ID mal-1965, ensuring durability and stability. It features a base shape of a thin lens, with dimensions of 35.6 mm in width and 25.2 mm in height, making it suitable for various optical systems. The filter's thickness is 2 mm, contributing to its robustness.
The primary function of this filter is to allow light with wavelengths longer than 628 nm to pass through while blocking shorter wavelengths. This is reflected in its physical data, where the cut-on wavelength is 628 nm, and the cut-off wavelength is 0 nm. The filter's coating, both on the front and back, is Semrock's TLP01-628, further enhancing its performance.