Photodetectors. Photodiodes. Photodetection operation modes. Responsivity. Operation speed and bandwidth. Time responses.

28 Outubro 2019, 15:00 • José Figueiredo

Photodetectors. Photodiodes. Photodetection operation modes. Responsivity. Operation speed and bandwidth. Time responses. Absorption Coefficient. Absorption and Direct and Indirect Transitions. Absorption and the Bandgap. Pn junction photodiode operation principles. Photodetection Modes. External quantum efficiency (QE) of the detector Responsivity R. Quantum efficiency and responsivity. Photocurrent and Responsivity Depend on the Wavelength. External Quantum Efficiency and Responsivity. Pin photodiode. Internal Quantum Efficiency. Responsivity dependence on the temperature. Responsivity of a pin photodiode.  Steady state photocurrent in the pin photodiode. Operation and speed of a pin photodiode. Influence of photocarrier Diffusion in a pin photodiode speed. Basic Photodiode Circuits. Photodiode Equivalent Circuit. Reverse Biased Photodiode Equivalent Circuit. Cutoff Frequency fc. Time response: Pulsed Excitation. Rise and Fall Times, and Bandwidth. Time-response: Pulsed Excitation. Non-RLCt response.