Logo Leibniz Universität Hannover
Logo: HOT – Hanover Centre for Optical Technologies
Logo Leibniz Universität Hannover
Logo: HOT – Hanover Centre for Optical Technologies
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Laser Measurement Technology

The aim of this lecture course is the introduction to the basic principles and methods of state-of-the-art optical measurement technology based on laser sources. An overview of the broad spectrum of laser sources, measurement techniques, and typical practical applications for various optical measurement, monitoring, and sensing situations in research and development will be provided. The exercise course aims at consolidating the understanding of the basic principles and provides theoretical exercises according to selected example applications and practical laboratory training.

Contents

 
  •  Basic physics
  • Optical elements/detection techniques
  • Lasers for measurement applications
  • Laser triangulation and interferometry
  • Distance and velocity measurement 
 
 
  •  Laser spectrometry
  • Holographic measurement techniques
  • Ultra-short laser pulse measurement techniques
  • Application in measurement, monitoring, and sensing
 

Prior Knowledge

Fundamentals of measurement technology, Basics of laser physics and laser technology

Recommended Literature

  • Donges, Noll, Laser Measurement Technology: Fundamentals and Applications, Springer (2015)
  • Hugenschmidt, Lasermesstechnik: Diagnostik der Kurzzeitphysik, Berlin, Heidelberg Springer-Verlag, 2007

 

 

Laser Spectroscopy in Life Science

The aim of this lecture course is the introduction to the fundamentals and methods in laser spectroscopy for application in the life sciences. Apart from the basic principles of laser spectroscopic techniques and methods applied in various up-to-date areas of fundamental research also practical applications in the life sciences such as biology, chemistry, and medicine, will be taught. The students will also gain insight into modern measurement devices and methods which are broadly employed. The exercise course aims at consolidating the understanding of the basic principles given as well as at their application for practical examples. 

Prior Knowledge

Basic physics, Optical elements and measurement techniques, Lasers for spectroscopic applications, Laser interferometry, Laser spectrometry and spectroscopy, Applications of (ultra)short pulse lasers. 

Semester

Wintersemester

Optical Metrology

The lecture gives an overview on theory, methods and devices in optical metrology. At the beginning, fundamentals of optics and photonics such as ray and wave optics are revised, which are essential for the understanding of concepts in optical metrology. Focusing on metrology in research and industrial applications, the lecture covers optical methods for measurement of topography, distance, and deformation as well as fiber optical sensors, which include concepts such as interferometry, holography and confocal microscopy. In addition, semi-optical methods such as atomic force microscopy and near field microscopy are addressed and compared to non-optical methods, e.g., scanning electron microscopy. To gain an in-depth understanding of the concepts involved in optical metrology, all devices and optical setups are explained in detail including light sources, cameras, and optical elements.

Recommended Literature

  • Born, Wolf: Principles of Optics;
  • Hecht: Optics;
  • Saleh, Teich: Fundamentals of Photonics;
  • Lauterborn, Kurz: Coherent Optics;
  • Goodman: Introduction to Fourier Optics;