ELEMENTAL AND COMPOUND SEMICONDUCTORS

Conductors and insulators, Semiconductor materials, Resistivity, Energy bands YT video - Click here

ABSORPTION IN SEMICONDUCTORS

Donor & acceptor impurity in semiconductor YT video - Click here

Optical Properties of Semiconductors -Interband & Intraband Absorption in Semiconductors YT video - Click here

Franz –Keldysh effect and quantum confined stark effect YT video - Click here

RECOMBINATION IN SEMICONDUCTORS

Relation between absorption and emission spectra YT video - [Click here[(https://www.youtube.com/watch?v=252oXLqgtPk)

LIGHT EMITTING DIODE (LED) SOURCES

Watch videos from: [41] to [47]-Click here

LASER SOURCES

Einstein’s relations YT video- Click here

Population Inversion in Lasers YT video - [Click here}(https://www.youtube.com/watch?v=naxiQQV1yHg&list=PLXnsjPD8-xuticW_n7lpeSpqL1whyEMiA&index=48)

Threshold condition for laser oscillation YT video - Click here

Single mode operation YT video - Click here

Distributed Feedback LASER or DFB LASER basics, Structure, Working and Radiation Power YT video - Click here

VCSEL YT video - Click here

OPTICAL DETECTORS

PN, PIN, Avalanche and Heterojunction photodiodes – Watch videos from: [62] to [67] in -Click here

Phototransistor YT video - Click here Avalanche Photodiodes - Watch videos from: [64] to [66] in - Click here

Quantum efficiency - Watch videos: [42],[51],[62] in - Click here

Responsivity YT video - Click here

OPTOELECTRONIC MODULATORS

Basic principle, Birefringence, Optical Activity, Electro-Optic modulators YT video - Click here