Lab Descriptions - Karlsruhe School of Optics & Photonics - KIT

observe the dis- and reappearance of (quantum) interferences for certain
combinations of light polarization.
4. Semiconductor spectroscopy (Department of Physics) (2 lab units)
By polarization-dependent measurements of absorption and transmission spectra
of several two- and three-dimensional semiconductor structures it is possible to
extract information of the nature of semiconductors, e.g. excitons, energy gap,
dimensions, refractive index.
5. Solar Cells (Department of Physics) (2 lab units)
Silicon solar cells are analyzed by measuring characteristic curves and efficiency
factors. The students will get an insight into pn-junctions, semiconductor optics
and global energy problems.
6. Laser resonator (Department of Physics) (2 lab units)
This lab provides an introduction into optical lab work, the use of optical
components is introduced. In particular, a Titan:Sapphire laser is adjusted to
make it lase. Different spectra are taken and its use and application are worked
out.
7. Magneto-optical Kerr effect – MOKE (Department of Physics) (2 lab units)
Measurement of the magnetization of thin films and heterostructures by the
MOKE is from great importance for magneto-optical data storage. Polarization
and refraction of light, the Kerr-effect and magnetism are the key terms of this
course.
8. Zeeman effect (Department of Physics) (2 lab units)
The Zeeman effect of Helium atoms is measured with a grating spectrograph.
Fundamental aspects of atomic physics are examined in this course, e.g.,
selection rules, g-factor, atom-light-interaction, magnetic quantum number.
9. Fabry-Perot interferometer (Department of Physics) (2 lab units)
A Fabry-Perot interferometer allows the determination of optical spectra with very
high resolution. The hyperfinestructure spectrum of Tl 205 is measured with high
accuracy considering the dispersion of the spectrometer.
10. Optoelectronics laboratory (Department of Electrical Engineering and
Information Technology) (8 lab units)
This is a series of four labs:
a. Light Measurement: The light measurement laboratory will deal with the
measurement of light intensity distribution, luminous flux and different
reflector types. These measurements are typically used to evaluate the
performance of luminaries.
b. Optics on the Nanoscale: The laboratory is concerning with the
theoretical basics and experimental techniques of nanoscale optics like
optical antennae. A laser safety instruction is required.
c. Compact fluorescent lamps: Compact fluorescent lamps are operated
on an electronic gear (ballast). Properties of the lamp as well as those
of the ECG are measured, i.e. real and reactive power as functions of
2