Coursebooks 2017-2018

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Ultrafast phenomena

PHYS-724

Lecturer(s) :

Chergui Majed

Language:

English

Frequency

Every year

Remarque

Every year / Fall

Summary

The course will cover fundamental concepts and recent developments in the field of time-resolved spectroscopy and introduce the basic theory to understand ultrafast (10-16 - 10-9 s) phenomena in condensed matter- and biological systems.

Content

For the study of electronic and structural dynamics in solids and (bio-) molecules in 'real' time, a variety of time-resolved spectroscopic techniques (in the optical, THz, and X-ray region of the electromagnetic spectrum) are available.'The fastest dynamics that are accessible with state-of-the-art experiments are the motion of electrons (10-16 s), vibrational motion of molecules (10-14 s), and electronic relaxation pathways (10-12 s). Examples include the breaking of interatomic bonds, vibrational dynamics in molecular systems, and tracking of radiative and non-radiative electron relaxation pathways in biological systems.'The course will try to address technological and theoretical aspects, and in the last part a few examples from literature will be studied:

1. Principles of femtosecond laser system

a. Overview of laser oscillators and pulse amplification

b. Parametric generation and amplification

c. Pulse measurement/characterization.

2. Time-resolved spectroscopy methods

a. Transient absorption (pump-probe) spectroscopy and fluorescence up-conversion

b. Multidimensional spectroscopy (Photon echo)

c. Attosecond spectroscopy using high harmonic radiation

d. Time-resolved X-ray absorption spectroscopy using synchrotron and XFEL radiation

3. Theory (no, or minimal, pre-existing knowledge is required)

a. Non-linear optics

b. Density matrix formalism

c. Liouville-space pathways

d. Correlation functions

4. Examples: Photon-Echo spectroscopy, Biological electron an energy transfer, Salvation dynamics''

Students are encouraged to bring up subjects/papers for discussion.

Note

Suggested reading:

Keywords

Ultrafast spectroscopy, Multidimensional spectroscopy, Optical Bloch Equations, High Harmonics Generation, Attosecond Spectroscopy, Femtosecond Lasers, Nonlinear optics.

In the programs

  • Advanced Manufacturing (edoc), 2017-2018
    • Semester
    • Exam form
      Oral presentation
    • Credits
      4
    • Subject examined
      Ultrafast phenomena
    • Lecture
      28 Hour(s)
    • Exercises
      28 Hour(s)
  • Photonics (edoc), 2017-2018
    • Semester
    • Exam form
      Oral presentation
    • Credits
      4
    • Subject examined
      Ultrafast phenomena
    • Lecture
      28 Hour(s)
    • Exercises
      28 Hour(s)
  • Physics (edoc), 2017-2018
    • Semester
    • Exam form
      Oral presentation
    • Credits
      4
    • Subject examined
      Ultrafast phenomena
    • Lecture
      28 Hour(s)
    • Exercises
      28 Hour(s)

Reference week

Lecture
Exercise, TP
Project, other

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  • Autumn semester
  • Winter sessions
  • Spring semester
  • Summer sessions
  • Lecture in French
  • Lecture in English
  • Lecture in German