Nanoscale Magnetic Materials - Magnetic Domains

mawi-933: Optical Materials


• Wave nature of light • Dielectric waveguides and optical fibers • Semiconductor science and Light-Emitting Diodes • Stimulated emission devices: Optical amplifiers and lasers • Photodetectors and image sensors • Polarization and modulation of light



Contents to be reviewed and prepared by the students.

Recommended literature

S.O. Kasap, Optoelectronics & Photonics: Principles & Practices (Pearson, 2013)

SoSe 2018

Please preregister at office A-104a. The number of participents is limited.

The Kick-Off meeting will be on the 19th of April 2018!

Thu, 14:15 - 15:45, KS2/Geb.F - SR-III; from 19.4.2018 to 12.7.2018


Schedule of 2018. Schedule is subject to change.

03.05.18 Wave Nature of Light - Kostiantyn Zvonarov, Jaeho Hwang

24.05.18 Dielectric Waveguides and Optical Fibers - open

31.05.18 Semiconductor Science and LEDs I - Marie Ullrich, Sophie Klemm

07.06.18 Semiconductor Science and LEDs II - Momme Thomsen, Sören Block

14.06.18 Photodetectors and Image Sensors I - Adrivit Mukherjee, Abhijith Beeram

21.06.18 Photodetectors and Image Sensors II - Martha Gerhardt, Lukas Zimoch

28.06.17 Stimulated Emission Devices: Lasers - Balasubramanian, Nishanth Shenoy

05.07.17 Polarization and Modulation of Light - Daniel Schiwietz, Jakob Horn



  • You might reduce the contents to fit your lecture!
  • 75 mins lecture is expected (preferabel with on black board example)
  • 15 mins discussion and question-and-answer session (5 questions per person per semester - with „logbook“ )
  • Provide a 3 page handout per lecture (at the beginning of the lecture)

Wave Nature of Light

  1. Light Waves in a Homogeneous Medium
  2. Refractive Index and Dispersion
  3. Group Velocity and Group Index
  4. Magnetic Field, Irradiance, and Poynting Vector
  5. Snell’s Law and Total Internal Reflection 
  6. Fresnel’s Equations
  7. Antireflection Coatings and Dielectric Mirrors
  8. bsorption of Light and Complex Refractive Index
  9. Temporal and Spatial Coherence
  10. Superposition and Interference of Waves
  11. Multiple Interference and Optical Resonators
  12. Diffraction Principles


Dielectric Waveguides and Optical Fibers

  1. Symmetric Planar Dielectric Slab Waveguide
  2. Modal and Waveguide Dispersion in Planar Waveguides
  3. Step-Index Optical Fiber
  4. Numerical Aperture
  5. Dispersion In Single-Mode Fibers
  6. Dispersion Modified Fibers and Compensation
  7. Bit Rate, Dispersion, and Electrical and Optical Bandwidth
  8. The Graded Index (GRIN) Optical Fiber
  9. Attenuation in Optical Fibers
  10. Fiber Manufacture


Semiconductor Science and Light-Emitting Diodes I

  1. Review of Semiconductor Concepts and Energy Bands 
  2. Semiconductor Statistics 
  3. Extrinsic Semiconductors 
  4. Direct and Indirect Bandgap Semiconductors: E-k Diagrams 
  5. pn Junction Principles 
  6. pn Junction Reverse Current 
  7. Recombination Lifetime
  8. pn Junction Band Diagram 
  9. Heterojunctions 

Semiconductor Science and Light-Emitting Diodes II

  1. Light-Emitting Diodes: Principles 
  2. Quantum Well High Intensity LEDs 
  3. LED Materials and Structures 
  4. LED Efficiencies and Luminous Flux 
  5. Basic LED Characteristics 
  6. LEDs for Optical Fiber Communications 
  7. Phosphors and White LEDs 

Photodetectors and Image Sensors I

  1. Principle of the pn Junction Photodiode 
  2. Shockley-Ramo Theorem and External Photocurrent 
  3. Absorption Coefficient and Photodetector Materials 
  4. Quantum Efficiency and Responsivity 
  5. The pin Photodiode 
  6. Avalanche Photodiode 

Photodetectors and Image Sensors II

  1. Heterojunction Photodiodes 
  2. Schottky Junction Photodetector 
  3. Phototransistors 
  4. Photoconductive Detectors and Photoconductive Gain 
  5. Image Sensors 
  6. Photovoltaic Devices: Solar Cells 


Lasers I

  1. Stimulated Emission, Photon Amplification, and Lasers
  2. Principle of the Laser Diode  
  3. Heterostructure Laser Diodes 
  4. Quantum Well Devices 
  5. Elementary Laser Diode Characteristics 
  6. Steady State Semiconductor Rate Equations: The Laser Diode Equation 
  7. Single Frequency Semiconductor Lasers 
  8. Vertical Cavity Surface Emitting Lasers 


Polarization and Modulation of Light

  1. Polarization
  2. Light Propagation in an Anisotropic Medium: Birefringence
  3. Birefringent Optical Devices
  4. Optical Activity and Circular Birefringence
  5. Liquid Crystal Displays
  6. Electro-Optic Effects
  7. Integrated Optical Modulators
  8. Acousto-Optic Modulator
  9. Faraday Rotation and Optical Isolators