Detectors

Advanced Photonix is the world’s leading supplier of custom and standard Large Area Avalanche PhotoDiodes (LAAPD’s) and  Avalanche Photodiodes (APD’s).  The silicon avalanche photodiode (Si APD) is a photon detection device that offers high internal gain. It is ideal for use in high speed, low light level applications.

We also offer several patented large area configurations (LAAPD) enhanced for a variety of regions of the spectrum. These are available with built-in thermoelectric coolers to reduce the dark current and enhance performance. Package options include hermetically sealed windows or windowless configurations.

APD’s offer significant advantages over Photomultiplier Tubes (PMT’s) in many aspects. 

 

 

These include:

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

APD’s are robust, compact, and lightweight compared to PMT’s and 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.

We have more APDs at DK

Avalanche Photodiodes