Semiconductor Optoelectronics

Semiconductor Optoelectronics. Instructor: Professor M. R. Shenoy, Department of Physics, IIT Delhi. This course introduces the students to the field of Semiconductor Optoelectronics, which deals with the physics and technology of semiconductor optoelectronic devices such as light emitting diodes, laser diodes and photodiodes, which are becoming important components in consumer optoelectronics, IT and communication devices, and in industrial instrumentation.

Assuming a general science undergraduate level background, the course begins with a recap of essential (to this course) semiconductor physics, followed by the study of interaction of photons with electrons and holes in a semiconductor, leading to the realization of semiconductor photon amplifiers, sources, modulators, and detectors. A variety of designs and configurations of these devices have been emerging with application-specific characteristics. (from


Unit 1: Semiconductor Physics for Optoelectronics
Lecture 01 - Context and Scope of the Course
Lecture 02 - Energy Bands in Solids
Lecture 03 - E-K Diagram
Lecture 04 - The Density of States
Lecture 05 - The Density of States (cont.)
Lecture 06 - The Density of States in a Quantum Well Structure
Lecture 07 - Occupation Probability and Carrier Concentration
Lecture 08 - Carrier Concentration and Fermi Level
Lecture 09 - Quasi Fermi Levels
Lecture 10 - Semiconductor Materials
Lecture 11 - Semiconductor Heterostructures and Lattice-Matched Layers
Lecture 12 - Strained-Layer Epitaxy and Quantum Well Structures
Lecture 13 - Bandgap Engineering
Lecture 14 - Heterostructure p-n Junctions
Lecture 15 - Schottky Junctions and Ohmic Contacts
Lecture 16 - Fabrication of Heterostructure Devices
Unit 2: Light Emission and Absorption, Amplification and Modulation in Semiconductors
Lecture 17 - Interaction of Photons with Electrons and Holes in a Semiconductor
Lecture 18 - Optical Joint Density of States
Lecture 19 - Rates of Emission and Absorption
Lecture 20 - Amplification by Stimulated Emission
Lecture 21 - The Semiconductor (Laser) Amplifier
Lecture 22 - Absorption Spectrum of Semiconductor
Lecture 23 - Gain and Absorption Spectrum of Quantum Well Structures
Lecture 24 - Electro-Absorption Modulator
Lecture 25 - Electro-Absorption Modulator: Device Configuration
Lecture 26 - Mid Term Revision: Question and Discussion
Unit 3: Semiconductor Light Sources
Lecture 27 - Semiconductor Light Sources
Lecture 28 - Light Emitting Diode I: Device Structure and Parameters
Lecture 29 - Light Emitting Diode II: Device Characteristics
Lecture 30 - Light Emitting Diode III: Output Characteristics
Lecture 31 - Light Emitting Diode IV: Modulation Bandwidth
Lecture 32 - Light Emitting Diode V: Materials and Applications
Lecture 33 - Laser Basics
Lecture 34 - Semiconductor Laser I: Device Structure
Lecture 35 - Semiconductor Laser II: Output Characteristics
Lecture 36 - Semiconductor Laser III: Single Frequency Lasers
Lecture 37 - Vertical Cavity Surface Emitting Laser (VCSEL)
Lecture 38 - Quantum Well Laser
Lecture 39 - Practical Laser Diodes and Handling
Unit 4: Semiconductor Photodetectors
Lecture 40 - General Characteristics of Photodetectors
Lecture 41 - Responsivity and Impulse Response
Lecture 42 - Photoconductors
Lecture 43 - Semiconductor Photodiodes
Lecture 44 - Semiconductor Photodiodes II: APD
Lecture 45 - Other Photodetectors
Unit 5: Epilogue
Lecture 46 - Photonic Integrated Circuits

Semiconductor Optoelectronics
Instructor: Professor M. R. Shenoy, Department of Physics, IIT Delhi. An introduction to the field of Semiconductor Optoelectronics.