Photodetectors

We have photodiodes (photovoltaic devices), photoconductors and photomultipliers.  We have single photon counting avalanche photodiodes ("SPADs"). 

We offer a range of photodetectors spanning the spectrum from the ultraviolet to the infrared.  To see a detailed description of the functionality of the devices available (as well as a discussion of competing technologies), click to visit the following pages.  

• ultraviolet detectors (wavelengths shorter than 380 nm)
• visible range detectors (wavelengths from 380nm to 1100nm), for LIDAR and photon counting
• infrared detectors (wavelengths 1.5 microns to 12 microns) and CO₂ laser detection (nominal 10.6 microns)

Choosing a detector and, if necessary, an associated preamp and TE cooling device can be a confusing task.  The following summaries identify some of the issues to be aware of.

• How to choose an IR Photodetector
• How to choose a Preamp for your IR Detectors
• Warning on TE Cooling Devices

Additionally, some articles are available on this web site (in pdf format) which discuss photodetector technology.

• Uncooled LWIR Photodetectors in CO₂ Laser Beam Profilers
• Uncooled Photodetectors in YAG/CO₂ Laser Warning Receivers
• High-Speed Room-Temperature CO₂ Laser Photodetectors
• Predicting the Performance of a Photodetector
• Designers still choose mercury cadmium telluride