Photodiodes, PbS, PbSe and pyroelectric detectors

EQ Photonics offers Si-UV Photodiodes, Si Photodiodes and InGaAs Photodiodes (TO packaged as well as fiber-coupled) for wavelenghts below 1 nm to 1700 nm. The manufacturers are Opto Diode, Emcore and Wavespectrum.
Pyreos manufactures pyroelectric sensors for detection of gases, flames, liquids, solid materials, motion and gestures. It exists a variety of application-specific filters.
Opto Diode also manufactures infrared detectors in PbS and PbSe technology for wavelengths of 1 µm to 5 µm and with different sizes of the active area.