SK3810 Femtochemistry 8.0 credits


  • Educational level

    Third cycle
  • Academic level (A-D)

  • Subject area

  • Grade scale

At present this course is not scheduled to be offered.

Intended learning outcomes

The course aims to give basic knowledge about the use of femtosecond lasers regarding ultrafast events in chemical dynamics, physical chemistry, molecular physics and chemical physics. The students will follow the field of ultrafast dynamics and penetrate frontline research within femtochemistry. After the course the student will be able to:

  • solve problems concerning short pulse propagation
  • solve problems about the density matrix and time-evolution of wave-packets
  • explain how non-linear effects can be used in operating femtosecond lasers
  • explain the pump-probe method in femtochemistry
  • differences in linear and non-linear response
  • give examples of femtosecond processes in the condensed phase and to compare with the gas phase
  • perform calculations applying the Franck-Condon approximation
  • to be able to use search engines to gather scientific information and find scientific literature in a systematic way
  • be able to explain breakthrough areas such as femtochemistry, ultra-fast spectroscopy and coherent control.

Course main content

Lasers in Femtochemistry. Introduction. Radiation-matter interaction. Lasers. Short pulse production. Non-linear phenomena. Short pulse characterization. Short pulse propagation effects. Time-resolved spectroscopy. Quantum mechanics in Hilbert Space. Quantum mechanics in Liouville Space. Density-matrix, time-evolution, pump-probe spectroscopy. Linear and non-linear response. Double Feynman diagrams. Liouville pathways. Condon approximation. Pump-probe, doorway, window wave packets. Wigner functions. Application to three level systems, ICN. Wave packets. NaI, I2, I3. Condensed phase processes. CPA-2000 erbium fiber oscillator, stretched pulse amplification, regenerator. Femtochemistry at KTH. Ultra-fast spectroscopy. Gas phase, molecular beams, solution chemistry. Coherent control.


Quantum physics for F4 (SI2170) or Laser spectroscopy for F4 (SK2800), or corresponding knowledge.


Handouts. Lars-Erik Berg


INL1 - Assignments, 8.0 credits, grade scale: P, F

Requirements for final grade

Homework assignments (INL1; 8 credits, grade P/F).

Offered by

SCI/Applied Physics


Supplementary information

There is currently no plan to give the course in the future.


Course syllabus valid from: Spring 2010.