I will explain the underlying phenomena of various physical properties exhibited by electrons, which are indispensable for understanding the operation of electronic devices. you will understand the structure of atoms from the quantum theory, and based on that you will understand behavior of semiconductor devices. In this course you will also understand the basic principle of laser system, optical fiber in industries, laboratories and in communication. To understand concepts of communication through electrodynamics. A knowledge of concepts/ technologies like superconductivity and ultrasonics.
Course Contents:
1. Atomic structure and electrons, Energy levels and electron configuration,
2. Energy bands in solids (Conductors, Semiconductors and Insulators), importance of semiconductors, E-K diagram, Effective mass of an electron in crystal lattice,
3. Direct and Indirect band gap semiconductors, F-D statics, Density of states, mean energy of electron at absolute zero,
4. Carrier concentration in conduction band and valence band, temperature dependance of carrier concentrations, Formation of p-n junction.
5. Basic principle of working of laser, two level, three level and four level lasers,
6. Ruby laser, He-Ne laser, CO2 lasers, Semiconductor lasers and applications of lasers.
7. Optical fibers in communications, Total internal reflection, Graded index and step index fibers, Pulse dispersion,
8. Single mode, multimode fibers, V-parameter, Losses in fiber
9. Gauss’s Law in dielectric medium, Equation of continuity, displacement current, Maxwell’s equations
10. Wave equations for Electric and magnetic field, E-M wave propagation in free space and dielectric media.
11. Poynting theorem and Poynting vector, Basic of quantum Mechanics, Postulates of quantum Mechanics,
12. Energy and wavefunction of a Free particle in a box (Infinite square potential).
13. Superconductivity
14. Ultrasonic generation and applications
- 教師: KUMAR VARUN