This product is a Thin Beam Splitter, specifically designed for use with a 442nm laser. It is offered by the vendor Semrock and is currently in stock. The item's dimensions are 35.6mm in width and 25.2mm in height, with a thickness of 1.05mm. The Material ID for this beamsplitter is uvfs mal- 1965.
The coating on the front of the beamsplitter is Sem Di03-R442, which is specifically designed for use with a 442nm laser. The shape of the beamsplitter is thin lens, which is designed to minimize optical aberrations and distortions.
For more detailed information, please refer to the vendor's website at https://www.idex-hs.com/store/product-detail/di03_r442_t1_25x36.