Photomultipliers: There's a Lot to Love
- Category:
- Electronics
- Optics
Placeholder for a PMT article on photon counting, low-current analogue mode vs. MPPCs, and the high linearity version
Placeholder for a PMT article on photon counting, low-current analogue mode vs. MPPCs, and the high linearity version
We often get asked questions like, “How do I know what photodetector is best for (application X)?” For some values of X, it’s pretty simple: if you’ve got milliwatts of visible light, use a silicon PIN photodiode and an ordinary transimpedance amp (TIA) made from an op amp or (for faster things) a packaged 50-ohm RF amplifier. It’s usually easy to verify that you’re in the shot noise limit—if your photocurrent drops more than 50 mV across its load impedance, you’re there. (*)
list from Building ElectroOptical Systems
And, courtesy of the good folks at Any2DJVU: