Laser Physics
Code  Completion  Credits  Range  Language 

12FLA  Z,ZK  4  4  Czech 
 Vztahy:
 In order to register for the course 12PLM, the student must have successfully completed the course 12FLA.
 Garant předmětu:
 Lecturer:
 Tutor:
 Supervisor:
 Department of Laser Physics and Photonics
 Synopsis:

Relations of behaviour both for laser active media and for various laser types from the general principle of quantum statistical physic will be derived.
 Requirements:

Knowledge of quantum mechanics (base equations and principles, statistical operator, perturbation theory, linear harmonic oscillator, quantum description optical radiation), electrodynamics and fundamentals of laser technique
 Syllabus of lectures:

1. Physical laser model  laser like closed system, the quantum Liouville equation
2. Quantum theory of damping  driving quadratic for evolution grave quantum system
3. Semiclassical theory of radiation interaction with matter  response of twolevel resonant matter, equations for semiclassical description
4. Propagation of stationary signals, dispersive characteristics resonant matter
5. Semiclassical description optical impulse propagation  incoherent and coherent pulse propagation, rateequations approximation
6. Lasers dynamics in rateequations approximation  laser with short resonator, rateequations
7. Dynamics of Qswitching, lasers without mirrors
8. Spectral characteristics laser radiation  frequency pulling, spectral distribution of the generated laser light in the event of homogenously & inhomogeneously broadened gain
9. Generation short pulses  simplified description of laser mode synchronizzation, pulse compression, expansion, and shaping
10. Quantum description of common systems  quasidistributive function for description of electromagnetic field states, time development of quasidistributive function, 11. Fokker Planck equation for atom and damped linear harmonic oscillator
12. Quantum theory of laser  quantum model of laser, Fokker Planck equation for laser system
13. Solving of Fokker Planck equation for laser in approximation of rotating wave Van der Pol oscillator
 Syllabus of tutorials:

1. Numerical exercises  Evolution of the statistical operator, perturbation theory
2. Numerical exercises  Master equation
3. Numerical exercises  Damped harmonic oscillator
4. Numerical Exercises  Equations of semiclasical laser theory
5. Students talks  Tunable laser
6. Students talks  Soliton
7. TEST 1
8. Students talks  Qswitching
9. Students talks  Xray laser, ASE
10. Students talks  Modelocking
11. Numerical exercises  FockerPlanck equation
12. Numerical Exercises  Quantum tehory of laser
13. TEST No.2
 Study Objective:

Knowledge:
To meet the theoretical foundations of laser generator using semiclassical and fully quantum description of the resonant interaction of radiation with matter.
Skills:
To apply the theoretical results to practical problems in laser physics, e.g. description of lasers with a short resonator, the generation of Qswitched giant pulses, and coherent pulse propagation.
 Study materials:

Key references:
Vrbova, M., Sulc, J.: Interaction of resonant radiation with matter, CVUT, Prague, 2006
Recommended references:
[2] W. H. Louisell: Quantum statistical properties of radiation, John Wiley and Sone, New York, 1973
[3] M. Vrbova: Quantum theory coherency, CVUT, Prague, 1997.
[4] B. E. A. Saleh and M. C. Teich, Fundamentals of Photonics, Wiley Series in Pure and Applied Optics, 1991
[5] B. Kvasil, Theoretical fundamentals of quantum electronics, Academia, Praha, 1983.
 Note:
 Further information:
 http://people.fjfi.cvut.cz/sulcjan1/fla/
 No timetable has been prepared for this course
 The course is a part of the following study plans:

 Fyzikální elektronika  Fotonika (elective course)
 Fyzikální elektronika  Laserová fyzika a technika (PS)