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Course module: 201300139
201300139
Laser Physics
Course infoSchedule
Course module201300139
Credits (ECTS)5
Course typeCourse
Language of instructionEnglish
Contact personprof.dr. K.J. Boller
E-mailk.j.boller@utwente.nl
Lecturer(s)
Contactperson for the course
prof.dr. K.J. Boller
Lecturer
prof.dr. K.J. Boller
Lecturer
P.J.M. van der Slot
Academic year2020
Starting block
1A
Application procedureYou apply via OSIRIS Student
Registration using OSIRISYes
Aims
The goal of the course is to provide a fundamental understanding of the physics of lasers.
 
Content
This course treats the main physical aspects of a very important light source, the laser. The course follows selected chapters of the comprehensive book "Laser Physics" written by Peter Milonni and Joseph Eberly (ISBN 978-0-470-38771-9). The course starts with an introduction to the the principles of laser operation and a brief description of some basic classical and quantum properties of atoms, molecules and semiconductors. We then continue with the classical Lorentz oscillator to describe the origin of absorption, emission, of the refractive index and spectral line broadening and its consequences for laser oscillation. We describe how to use rate equations for population photons to describe optical gain, the laser threshold, gain saturation, spectral and spatial hole burning, how to achieve mode selection and the fundamental lower limit for the spectral bandwidth of lasers. For selection of the optical phase of lasers, injection locking will be treated. These continuous-wave and steady-state equilibrium descriptions will then be expanded towards dynamical properties and effects in lasers, such as spiking and relaxation oscillations. To explain the generation of light pulses with high energy, the technique of Q-switching will be treated. To explain the generation of ultrashort duration (e.g. in the femtosecond range), we describe mode-locking of lasers. For a deeper understanding of wave and quantum aspects and mutual coherence in light matter interaction such as Rabi-oscillation, we will introduce the optical Bloch equations and the Maxwell-Bloch equations. During the course we will give specific technological examples of certain types of lasers, e.g, from the class of gas lasers, solid state lasers and semiconductor lasers
 
Assumed previous knowledge
Bachelor courses on electrodynamics, mechanics, optics, quantum mechanics and parts of solid state physics.
Participating study
Master Applied Physics
Required materials
-
Recommended materials
Course material
The course will be based on the book "Laser Physics" by Peter W. Milonni and Joseph H. Eberly, ISBN 978-0-470-38771-9
Course material
Excerts from the book "Fundamentals of Photonics" by B.A.E. Saleh & M.C.Teich, Wiley New York 1991 or later editions, will be used if required and corresponding material be placed on Canvas
Course material
The book "Principles of Lasers, O. Svelto, 4th edition, Springer New York 1998 can be used as background material for comparison with the main book.
Course material
Transparencies from the lectures given will be placed on Canvas after lecture
Course material
The homework questions will be taken from the book "Laser Physics", possibly supplemented with additional questions, reached out in lectures and tutorials
Instructional modes
Lecture

Remark
Sterk aanbevolen
Tutorial, partly lecture

Remark
Sterk aanbevolen
Tests
Exam

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Kies de Nederlandse taal