Photodetector. Outline Introduction Photoconductor Photodiode Avalanche photodiode Phototransistor.
Characterization of Detectors NEP= noise equivalent power = noise current (A/ Hz)/Radiant sensitivity (A/W) D = detectivity = area/NEP IR cut-off maximum.
Photomultipliers hf e e e e e e PE effect Secondary electron emission Electron multiplication.
Static electric charges Law of attraction and law of repulsion Conductors and insulators Charging by friction Charging by contact and induction Using.
