Detectors

Advanced Photonix is the world leading supplier of custom and standard Large Area Avalanche Photodiodes (LAAPD). The silicon avalanche photodiode (Si APD) is a photon detection device that offers high internal gain. It is ideal for use in high-speed, ultra-low-light-level applications. Our portfolio of LAAPDs includes several patented large-area configurations enhanced for various spectrum regions. They are available with built-in thermoelectric coolers to reduce the dark current and improve performance. The devices are available in hermetically sealed windows or windowless configurations.  APDs offer significant advantages over Photomultiplier Tubes (PMT) in many aspects:

• • Improved signal-to-noise ratio
  • Higher Quantum Efficiency
  • Greater linear response range
  • Larger active detection area
  • Insensitive to magnetic fields

APDs are robust, compact, and lightweight compared to PMTs.  They require little or no cooling, making them ideal for applications requiring durability, portability, small space envelopes, or operation in harsh environments.  

These applications include missile warning systems, muzzle flash detection, wafer defect inspection, laser rangefinders, positron emission tomography (PET), and particle physics.

NEW: Download our Deep UV Enhanced LAAPD Data Sheet

Avalanche Photodiodes