Sumários

Aula lecionar em janeiro - apresentações.

30 Outubro 2023, 14:00 • José Figueiredo

Aula lecionar em janeiro - apresentações.

Attosecond light pulses and quantum dots (2023 Nobel prizes in Physics and in Chemistry).

6 Outubro 2023, 14:30 • José Figueiredo

2023 Nobel prizes in Physics and in Chemistry: Attosecond light pulses and quantum dots



https://www.youtube.com/watch?v=y9yFvTUx-b0 (Moodle)

Photovoltaic solar cells basics.

6 Outubro 2023, 13:30 • José Figueiredo

Monographia first presentions: Miguel  Coelho - Programmable Photo Integrated Circuits.

Photovoltaic solar cells basics:

https://www.youtube.com/watch?v=yVOnHWnLSeU

Attosecond light pulses and quantum dots (2023 Nobel prizes in Physics and in Chemistry).
2023 Nobel prizes in Physics and in Chemistry: Attosecond light pulses and quantum dots


Light emitting diode structures and characteristics.

2 Outubro 2023, 15:00 • José Figueiredo

Distributed Bragg reflector LEDs (DBR-LEDs) LEDs. Resonant cavity LEDs (RC-LED). Light extraction from a bare LED chip. Surface emitting LED (SLED) and Edge emitting LED (ELED). Surface emitting LED (SLED) fiber coupling. Edge emitting LED (ELED). Edge emitting LED (ELED) coupling into fibers. LED parameters and figures of merit. Internal quantum efficiency. External Quantum Efficiency. Extraction efficiency. Power conversion efficiency. The luminous efficiency of the eye. LED Brightness and efficacy. Luminous efficacy/efficiency. LED brightness LED brightness. LED Characteristics: current (I) vs. voltage (V) characteristic. Photon flux. Optical power output. Light-current (L-i) curve. LED responsivity. Power-conversion efficiency. LEDs electronic circuitry and drive modules. LED response time and bandwidth. LED electric and optical bandwidths. LED response time. Optical communication LEDs. Visible LEDs. Organic LEDs. White LEDs.

Monographia first presentions. Light emitting diode structures and characteristics.

2 Outubro 2023, 14:00 • José Figueiredo

Monographia first presentions: Paul König - photovoltaic energy in Portugal; Luis Risinger-DiVincenzo criteria (Topic: Current state of Quantum dots in regard to Quantum computing).

Light emitting diode structures and characteristics. Distributed Bragg reflector LEDs (DBR-LEDs) LEDs. Resonant cavity LEDs (RC-LED). Light extraction from a bare LED chip. Surface emitting LED (SLED) and Edge emitting LED (ELED). Surface emitting LED (SLED) fiber coupling. Edge emitting LED (ELED). Edge emitting LED (ELED) coupling into fibers. LED parameters and figures of merit. Internal quantum efficiency. External Quantum Efficiency. Extraction efficiency. Power conversion efficiency. The luminous efficiency of the eye. LED Brightness and efficacy. Luminous efficacy/efficiency. LED brightness LED brightness. LED Characteristics: current (I) vs. voltage (V) characteristic. Photon flux. Optical power output. Light-current (L-i) curve. LED responsivity. Power-conversion efficiency. LEDs electronic circuitry and drive modules. LED response time and bandwidth. LED electric and optical bandwidths. LED response time. Optical communication LEDs. Visible LEDs. Organic LEDs. White LEDs.