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Indian Institute of Technology Delhi

Semiconductor Optoelectronics

Indian Institute of Technology Delhi and NPTEL via Swayam

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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/engineering 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. The course is ‘applied’ in nature, and could be offered at the level of B.E/B.Tech IIIrd/ IVth Year, M.Sc IInd/ M.Tech. I Year.
INTENDED AUDIENCE:IIIrd, IVth year B.Tech / M.Sc (Physics/ Electronics/ Electronic Sciences) students, M.Tech Ist Sem studentsPREREQUISITES: Basic undergraduate-level knowledge of Semiconductors, Optics, Electronics and Quantum Mechanics would be required.INDUSTRY SUPPORT: Companies and R&D Laboratories working on Laser Applications, Optoelectronic and Optical Communication are expected to value this course.



Week 1 : Introduction, Energy bands in solids, Density of statesWeek 2 : Occupation probability and Carrier concentration, Quasi Fermi levelsWeek 3 : Semiconductor optoelectronic materials and HeterostructuresWeek 4 : Heterostructure p-n junctions, Schottky junctions, Ohmic contactsWeek 5 : Interaction of photons with electrons and holes in a semiconductorWeek 6 : Amplification by stimulated emission, The semiconductor laser amplifierWeek 7 : Absorption in semiconductors and quantum wells, Electro-absorption modulatorWeek 8 : Injection electroluminescence, Light emitting diode and their characteristicsWeek 9 : Semiconductor laser: Device structure and characteristicsWeek 10 : Single frequency lasers, VCSEL and Quantum well lasersWeek 11 : Semiconductor photodetectors, General characteristicsWeek 12 : Photodiodes: PIN diode and APD. Photonic Integrated Circuits

Taught by

M.R. Shenoy



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