Lecture Solid State Optics in external fields
(Exercises will be hands-on training of modelling optical properties in solids using ellipsometry software.)
PART II WS2021/2022 - repeatedly in winter terms
Introduction
- Magnetooptical materials
- Electrooptical materials
- Topological materials
- Molecular materials
Band theory
- Metals
- Semiconductors
- Insulators
- Topological insulators
- Molecular materials
Excitons
- Free excitons in external magnetic field
- Free excitons at external electric fields
Luminescence
- Magnetoluminescence
- Electroluminescence
Semiconductor quantum structures
- Quantum confined structures
- Growth and structure of semiconductor quantum wells
- Electronic levels
- Optical absorption and excitons
- The quantum Stark effect
- Optical emission
- Intersubband transitions
- Bloch oscillations
- Growth and structure of semiconductor quantum dots
- Electronic levels
Semiconductor photodetectors
- Photodiodes
- Photoconductive devices
- Photovoltaic devices
Luminescence centers
- Vibronic absorption and emission
- Colour centers
- Paramagnetic impurities in ionic crystals
- Solid state lasers and optical amplifiers
- Phosphors
Optical labels in biotechnology
Nonlinear optics
- The nonlinear susceptibility tensor
- The physical origin of optical nonlinearities
- Second-order nonlinearities
- Third-order nonlinear effects
Single photon detectors and quantum optics
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PART I (summer term - recent occurrence: SoSe2021)
Introduction
- Classification of optical properties
- Optical coefficients
- The complex refractive index and dielectric constant
- Optical materials
- Characteristic optical properties
- Microscopic models
Electromagnetism in dielectrics
- Electromagnetic fields and Maxwell’s equation
- Electromagnetic waves
Classical propagation
- Propagation of light in dense optical medium
- The dipole oscillator model, Kramers-Kronig relationship
- Dispersion
- Optical anisotropy: birefringence
Quantum theory of radiative absorption and emission
- Einstein coefficient
- Quantum transition rates
- Selection rules
Interband absorption
- Interband transition
- The transition rate for direct absorption
- Band edge absorption in direct gap semiconductors
- Band edge absorption in indirect gap semiconductors
- Interband absorption above the band edge
- Measurement of absorption spectra
- Semiconductor photodetectors
Excitons
- The concept of excitons
- Free excitons
- Free excitons at high densities
- Frenkel excitons
Luminescence
- Light emission in solids
- Interband luminescence
- Photoluminescence
Free electrons
- Plasma reflectivity
- Free carrier conductivity
- Metals
- Doped semiconductors
- Plasmons
Phonons
- Infrared active phonons
- Infrared reflectivity and absorption in polar solids
- Polaritons
- Polarons
- Inelastic light scattering
- Phonon lifetimes
Literature: Mark Fox, Optical properties of solids, Oxford Master Series in Condensed Matter Physics, Oxford University Press, 2nd ed., (2008)
https://global.oup.com/academic/product/optical-properties-of-solids-9780199573370?q=Mark%20fox&lang=en&cc=de |
