Experimental AMO

ECTS credits:

Course parameters:
Language: Danish
Level of course: PhD course
Time of year: Autumn + Winter 2016
No. of contact hours/hours in total incl. preparation: 2x3 contact hours pr. Week for 20 weeks/180 hours
Capacity limits: 8

Objectives of the course:
This course will provide an introduction to a broad range of subjects relating to molecular physics. This course is intended to provide students with the necessary tools to follow current research in the field of molecular physics.

Learning outcomes and competences:
At the end of the course, the student should be able to:

  • Give an account for molecular structure and ion-photon interaction
  • Discuss the fragmentation patterns of molecules (photo fragmentation, statistical fragmentation,…)
  • Discuss molecules from a symmetry point of view
  • Discuss the statistical properties of isolated molecules (energy, temperature and level densities)
  • Apply rate equations to various systems
  • Discuss various forms of spectroscopy (Raman, Fluorescence)

Compulsory programme:
Mandatory, active participation in study group including oral presentation of assigned subjects

Course contents:
Ion-photon interaction
Photo fragmentation
Group theory and symmetries
Fluorescence and phosphorescence
Statistical physics of ions and molecules
Raman spectroscopy


Name of lecturers:
Lars H. Andersen

Type of course/teaching methods:
A mixture of literature reading, discussion sessions, exercises and possibly some numerical work.


1 Review of ion-photon interactions

  • Molecular structure in general, TISE and the BO-approximation, electronic, vibrational and rotational structure of diatomic molecules
    • Review of Ch.10-11 of B&J
    • Atkins & Friedman - Ch. 8 pp. 258-285
  • Cross-sections, photon flux and reaction probability -> count rate estim. in exp.
    • Ref: Turro, Bransden & Joachain
  • Angular distributions
    • Richard Zare article

2 Fotofragmentation

  • Electron detachment, dissociation,
  • Ref: Schinke - Photodissociation dynamics, pp. 109-173
  • Ref: Kirby & Dishoeck, Advances in Atomic and Molecular Physics 25, 1988   

3 Gruppeteori og Symmetrier

  • LHA: Poly-atomic molecules and symmetries
  • Hückel theory - ch. 9+11 in Atkins & Friedman

4 Flourescence & Phosphoroscence

  • Fluorescence / Phosphorescence, lifetimes and quantum yields
    Kasha’s rule, mirror-image rule, Quenching, Energy transfer (FRET)
  • ch. 11 in Atkins & Friedman
  • Ref: Principles of Fluorescence Spectroscopy - Lakowicz,  Ch. 1, pp.1-23 + Ch. 8.1 + Ch. 13 pp. 367-371.
  • Papers: Gas-phase FRET efficiency measurements to probe the conformation of mass-selected proteins and others.

5 Statistik (1-2 øvelsesgang)

  • Heat exchange of ions with the surroundings - Canonical vs. micro-canonical ensemble
    • Ref: Molecules and Statistical Physics I
    • J. Andersen et al. J. Chem Phys 114, APR 15 2001
  • Ion storage times
  • Rate equations

6 Raman spectroscopy

  • Rayleigh (elastic) vs. Raman (inelastic)

7 Summary of the subjects

8 Experimental techniques and lab tours

  • Slides om laboratorie 

Course homepage:

Course assessment:
Pass or fail based on active participation, includes student presentation: short summary of theoretical subject and final oral presentation on lab technique linking theoretical knowledge to reality

Department of Physics and Astronomy, Aarhus University

Special comments on this course:

Autumn + Winter 2016 Autumn + Winter 2016  

To be announced

Deadline for registration is Friday, 9 September 2016. Information regarding admission will be sent out no later than Monday, 12 September 2016.

For registration: LHA@phys.au.dk

If you have any questions, please contact Lars Andersen, e-mail: LHA@phys.au.dk

Comments on content: 
Revised 05.11.2018