​​​Welcome to: FYST36 Physics: Molecular Physics, 7.5 credits​

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Schematic view of the energy levels of a diatomic molecule. Both the  molecular vibration and rotation are quantisized. This can be observed for instance in the blue-green light from a candle flame. ​​​

Welcome to the homepage of the course "Molecular Physics".

Molecules play an important role in our world. All biological life and what was described by the ancient Greeks as the four elements, earth, water, air and fire, require knowledge on molecular properties. Therefore it is of vital interest to understand how these can be detected and identified.

  Autumn     Period: 2
   Level:  G
   Language: English

   Coordinator: Zhongshan Li
   Requirements: LUBAS  
   LTH course code​: FBR030


  • Introduction
  • Repetition of atomic structure
  • Basic molecular orbital theory (linear combination of atomic orbitals, binding and anti-bonding orbitals, hybridisation of orbitals, covalent bindings, basic molecular properties that can be explained with these theories),
  • Born-Oppenheimer approximation
  • Spectral transitions
  • Selection rules and procedures
  • Franck-Condon principle and transition strengths
  • Term notations
  • Microwave spectroscopy Molecular rotation of simple and polyatomic molecules, technologies for rotational spectroscopy
  • Infrared spectroscopy: Vibrations of simple and polyatomic molecules, infrared techniques
  • Theory of Raman spectroscopy
  • Electron spectroscopy Theory and technologies.

Laboratory session: Computer simulation of simple molecular spectra and adaptation to experimental measurement data Demonstrations: Emission spectroscopy, Laser-induced fluorescence.

Course design

The teaching consists of lectures, laboratory session and written assignments. Participation in laboratory session and written assignment are compulsory.

Lectures: ​ hours
Exercises:  hours
Projects:  hours


Examination takes place in writing at the end of the course. To pass in the course, the student must achieve certain credits of written examination laboratory session, written assignments. Subcourses that are part of this course can be found in an appendix at the end of this document.

Teachers and Assistants

phone: +46 46 222 98 58


​​​​​More information about the course

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