2012 Fall / 2011 Spring
EE231 Introduction to Lasers, Department of Electrical Engineering, Stanford University. [coursework.stanford.edu]
I have been studying physics and engineering for many years, steering and shaping up my understandings and personal views through lectures, textbook reading, vibrant discussions, theoretical modeling and experiments. I believe that this learning process will continue, and ultimately teaching will bring up the understanding, views and vision into unprecedented level towards the truth of Nature.
I have regarded teachers as a bridge between scientific forefathers and future successors by introducing discoveries and established understanding as well as providing chances to contemplate processes, roles and ethics of scientists as a member of our society. Therefore, I aim to equip students not only with mathematical techniques, physical knowledge and engineering skills but also with critical thinking and logic, creative imagination, endless curiosity, adventurous minds and humble attitudes. Since our knowledge continues to evolve, I would like students and myself to get out of our invisible box, challenging to walk roads not yet taken with courage and conviction. I strongly believe that teachers would deeply touch precious young souls intentionally or unintentionally and that teachers would draw their unrecognized potentials from young students, help them establish their confidence and make them dream on their learning journey, waking up their eyes and hearts. With this conviction, I devote myself to teaching opportunities with integrity, sincere hearts, whole responsibilities and humble minds to grow together in this cherishing life-long journey.
I am interested in developing the graduate and undergraduate curricula in five areas, which also largely overlap with research activities: (1) Fluctuations in electronics and optics; (2) Lasers and Bose-Einstein Condensation; (3) Mathematical methods for physicists and engineers; (4) Solid-state physics and quantum information processing; (5) Influential scientific discoveries in Physics.
Fluctuations are ultimately governing the potential limit of measurement accuracy both in classical and quantum electrical and optical system. This class offers students with the fundamental statistical physics for classical and quantum systems and introducing the necessary mathematical methods and quantum mechanical formalism; then, learned knowledge is applied to real examples found in historically important devices and the frontier research systems in classical and quantum electronics and optics.
Lasers and Bose-Einstein condensation share common features arising from quantum bosonic nature. Classes discuss The semi-classical and quantum description for the laser principles and experimental laser techniques (e.g. pump-probe, pulsed operation), which are widely used for characterizing physical, chemical, biological, engineering systems. Ultimately, I encourage students for their future inventions by introducing the state-of-the art research directions like inversionless lasers, cavityless lasers beyond the conventional laser principles. As an advanced subject, lasers and Bose-Einstein condensations are studied in quantum mechanical framework to elucidate comparison and contrast.
Mathematics is the language of physics and engineering subjects. Although students take many classes in Department of Mathematics, I have found that most students either plug numbers in formula blindly or hesitate to apply mathematical techniques in physical problems outside classes. Thus, this class aims to review common mathematical methods widely used in physical settings and their valid regime and restriction with physical meaning. The scope of this class spans from basic methods like linear algebra, differential equations, Fourier and Laplace transformation to advanced techniques including green’s function formalism, second quantization techniques, master equations, and complex variable analysis.
This class would emphasize essential concepts of solid-state physics including optical properties, which are often missed in typical solid-state courses. With this understanding, as an example, several solid-state physical systems used for quantum information processing are explored in details, how to utilize benefits and advantages and how to suppress undesirable aspects.
This class targets undergraduate and/or broad audience, tracing several technological breakthroughs and discoveries to shift our philosophical paradigms throughout histories in a focus of their persistent efforts through vibrant discussions, experimental demonstrations, frustrations and excitements. I hope this class invites young generations into scientific research areas with their passion and excitements to envision their contributions to the world as our ancestors have done for us.