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Course Co-ordinated by IIT Delhi
Prof. M. R. Shenoy
IIT Delhi


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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.




Introduction, Energy bands in solids, Density of states


Occupation probability and Carrier concentration, Quasi Fermi levels


Semiconductor optoelectronic materials and Heterostructures


Heterostructure p-n junctions, Schottky junctions, Ohmic contacts


Interaction of photons with electrons and holes in a semiconductor


Amplification by stimulated emission, The semiconductor laser amplifier


Absorption in semiconductors and quantum wells, Electro-absorption modulator


Injection electroluminescence, Light emitting diode and their characteristics


Semiconductor laser: Device structure and characteristics


Single frequency lasers, VCSEL and Quantum well lasers


Semiconductor photodetectors, General characteristics


Photodiodes: PIN diode and APD. Photonic Integrated Circuits

Basic undergraduate-level knowledge of Semiconductors, Optics, Electronics and Quantum Mechanics would be required.l

  •  B. E. A. Saleh and M. C. Teich, 2. 3. 4. 5. 6. 2 Fundamentals of Photonics, John Wiley & Sons, Inc., 2 nd Ed. (2007), Ch.16, 17, and 18. G. Ghione,
  • Semiconductor Devices for High-Speed Optoelectronics, Cambridge University Press (2009) A. Yariv and P. Yeh, Photonics: Optical Electronics in Modern Communication, Oxford University Press (2007), 6 th Ed., Ch.15-17. G. Keiser, Optical Fiber Communications, McGraw-Hill Inc., 3 rd Ed. (2000), Ch.4,
  • P. Bhattacharya, Semiconductor Optoelectronic Devices, Prentice Hall of India (1995). J. Singh, Semiconductor Optoelectronics: Physics and Technology, McGraw-Hill Inc. (1995).
  • W.D. Callister, Materials Science and Engineering: An Introduction, 6 th . Edn., Wiley, 2003.



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