In the course of this selective module the students are introduced to basic schemes and detailed insights of optical measurement systems and procedures. They learn the necessary foundations to understand, use, analyze, and develop optical systems.
During the lecture part fundamentals of optics are repeated and based on that the students are guided towards the understanding of complex optical measurement systems. During three afternoons in the laboratory, the students deepen their knowledge by building and evaluating a number of optical measurement systems (including data processing).
Fundamentals of Measurement
Concept, SI units, uncertainty
Introduction to Optical Metrology
optical radiation, light, EM wave, spectrum
Detecting optical radiation
Radiometric and photometric quantities
Optical radiation as EM wave
Description, characteristics, polarization, light/matter interaction, dispersion, refraction, reflection, transmission
Radiation sources and optical radiation
Natural sources of radiation, thermal radiation
Optical temperature measurement
Pyrometers, thermal imaging
Laser
Properties, setup, types of lasers, Gaussian beam, coherence
Interferometer
Michelson, Mach-Zehnder and Sagnac interferometer Coherence-tomography
Semiconductor light sources and semiconductor laser
Detectors
Photoelectric effect, photoelectric cell and photomultiplier, semiconductor detectors (diodes, PSD, CCD and CMOS), thermal detectors (QWIP, thermopile, bolometer, pyro-electric)
Speckle metrology and holography
Properties of laser speckle interferometer, speckle correlation, holographic interferometry
Optical flow measurement
Optical Doppler effect, Laser Doppler Anemometer, Particle Dynamics Analysis, Particle Image Velocimetry, Vibrometer, Schlieren optics
Light Detection and Ranging (LIDAR)
Optical Ranging Principle, Reflection from Materials, SNR and performance, Scanning and Nonscanning LIDAR
Wavefront Sensing (WFS)
Diffraction Imaging, Principle, Aberration, Measurements
* The 2 days lab exercises are organized with two groups. Students will be asigned on either group A or B.
