1. Nuclear Magnetic Resonance (NMR) in liquids
2. Optical Pumping
3. Doppler-free Rb saturation spectroscopy
4. Electro- and Photoluminescence

5. Rotation-Vibration Spectra of Molecules
6. Lattice Vibrations and Effects of Free Charge Carriers in Solids
7. Raman-Spectroscopy on Solids

8. Zeeman Effect
9. High-Resolution Gamma-Spectroscopy with Ge-Semiconductor Detector
10. Alpha-Particle Spectroscopy with a Semiconductor Detector

11. X-Ray diffraction (XRD)
12. Mass Spectroscopy on Gases and simple Organic Molecules
13. Hall-Effect and Electrical Conductivity

14. Optical Spectroscopy at Colour Centers and Molecules
15. Franck-Hertz Experiment
16. Squid Experiment

17. Electron-Paramagnetic Resonance (EPR)
18. Study of Solid State Surfaces using a Scanning Tunnelling Microscope
19. Study of Solid State Surfaces using a Atomic Force Microscope

Raman-Spectroscopy on Solids

Supervisor: Dr. Chris Sturm

The Raman effect describes the inelastic scattering of light in matter. This effect is for example used to investigate the vibrational modes, with which the light interacts.

In this experiment, different crystals are investigated by means of Raman spectroscopy. Besides the relation between material properties and vibrational energies, particularly the invluence of the symmetry properties on the Raman spectrum is investigated. For that, the use of Raman tensors is introduced. From these, selection rules are to be derived which are applied experimentally. The influence of the light polarization and the orientation of the sample on the measured spectra are investigated for that.

For the measurements, a portable spectrometer is used: Raman-Spectrometer Model "i-RamanTM    BWS415-532S"

by the manufacturer B&W Tek.

description of this experiment