Skip to main content
grasp.study
About
Explore
Pricing
Log in
Try it for free
Back to course
👋
Welcome to a Grasp lesson
Create a free account
to keep studying and create your own study path.
Exciton physics: basic to advanced
·
Module 4
Optical Properties and Selection Rules
1
Exciton Absorption Coefficient from Fermi's Golden Rule
Derive the optical absorption coefficient for excitons using Fermi's golden rule.
2
Exciton Oscillator Strength: Envelope Function Approach
Evaluate the oscillator strength for exciton transitions using the envelope function approximation.
3
Exciton Absorption: Discrete Peaks & Enhanced Continuum
Analyze the Elliott-Toyozawa formula for excitonic absorption spectra, including both discrete peaks and the enhanced continuum.
4
Exciton Selection Rules: Parity & Angular Momentum
Derive basic optical selection rules for exciton transitions based on parity and angular momentum conservation.
5
Exciton-Polaritons: Dispersion in Strong Coupling
Introduce the concept of exciton-polaritons and derive the polariton dispersion relation in the strong light-matter coupling regime.
Previous module
Many-Body Formulation of Excitons
Next module
Symmetry, Fine Structure, and Spectroscopy