FGL280S 2 in x 2 in Square N-WG280 Colored Glass Filter; 280nm Longpass

The FGL280S is a 2 in x 2 in Square N-WG280 Colored Glass Filter, specifically designed for longpass applications at 280nm. This filter is sourced from the renowned optical component manufacturer, Thorlabs.

The filter is made of N-BK7 Schott, a high-quality borosilicate glass known for its excellent optical properties. It has a thickness of 2mm, providing durability and stability. The rectangular shape of the filter, with a width and height of 50.8mm each, allows for versatile integration into various optical systems.

The FGL280S features a longpass cut-on wavelength of 280nm, meaning it begins to transmit light at this wavelength and continues to do so as the wavelength increases. The cut-off wavelength is 0nm, indicating that it transmits all wavelengths shorter than the cut-on wavelength. This makes it ideal for applications where longer wavelengths need to be blocked.

The filter's coating is another notable feature. Both the front and back surfaces are coated with the THo FGL280 coating, enhancing its performance and durability. The coating ensures high transmission and low reflection, making the filter highly efficient.

In terms of geometry, the filter is designed in a thin lens shape, which can be beneficial in certain optical configurations. The FGL280S is currently in stock and available for immediate use. For more information, you can refer to the vendor's website through the provided weblink.