Optical Filters

Bandpass filters improve contrast by allowing wavelengths within a certain range to be transmitted while blocking those outside of the pass band.

A wide variety of interference filters in the IR range is available: Bandpass filters, long-pass filters, short-pass filters, blocking filters, and dichroic splitters are included in this range of products.

These optical filters are known as edge filters; they correspond to high and low passes in electronics.

Polarizers are used to produce polarized light. Thin-film polarizers are used in high-power applications, whereas polarization cubes are used for simultaneous beam separation.

Photolithographic and astronomic filters are available in this section. The different optical filters available are as versatile as the applications are varied.

Optical gratings, also known as multiple slits, function due to a process called diffraction. Because of the periodic structures, the light of each of the individual slits interferes with each other after passing.