We can solve your problem, ask us!

Our expertise lies - among others - in the following areas:

  • atomic and molecular physics
  • quantum optics
  • quantum information
  • environmental sensing
  • laser spectroscopy
  • laser physics and applications
  • numerical simulations in various fields


  • various spectroscopic techniques (absorption, LIF, quantum beat spectroscopy, photo/field-ionization)
  • laser development (development of external cavity diode lasers with extended mode-hop free tuning, various injection seeded 532 nm Nd:YAG pumped Ti:Sapphire lasers, novel intra-cavity second harmonic generation for type-II crystals, intra-cavity pulse modulation for linewidth narrowing of an Alexandrite laser, dual-wavelength injection seeding of a flashlamp pumped Ti:Sapphire, narrow linewidth fiber amplifier, optical parametric oscillator)
  • design, setup, and maintenance of HV and UHV chambers
  • design and setup of high temperature supersonic nozzles
  • design and setup of high-efficiency detectors for atoms
  • design and setup of electron/ion lenses
  • environmental sensing based on lasers
  • installation/programming of data acquisition systems (IEEE, DAC, FPGA based, Frame Grabber)
  • Monte-Carlo simulations, numerical methods


Special equipment of our group includes

  • various fiber amplifiers including fiber-coupled pump lasers
  • cw Ti:Sapphire lasers
  • injection seeded, pulsed Ti:Sapphire lasers with ns-pulse duration and Fourier transform limited linewidth (spectral coverage via non-linear frequency conversion 200 nm - 6000 nm)
  • injection seeded flashlamp pumpd Nd:YAG laser
  • external cavity diode lasers
  • DPSS laser
  • HeNe laser
  • UV enhanced EM-CCD camera
  • fast iCCD camera
  • various instruments for measurement and characterization of light (optical spectrum analyzer, digital oscilloscopes, power and energy meters, wavelength meter, Fabry-Perot interferometers, photon counters, boxcar integrators, etc.)

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Prof. Dr. Thomas Walther

Laser und Quantenoptik
Institut für Angewandte Physik
Fachbereich 05 - Physik
Technische Universität Darmstadt
Schlossgartenstr. 7
D-64289 Darmstadt

+49 6151 16-20831 (Sekretariat)

+49 6151 16-20834 (Fax)




Saturday Morning Physics

Gewinnerin des Hauptgewinns 2018 macht gearde Praktikum am Fachbereich

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