Matrix-Assisted Laser Desorption/Ionization with ultrashort laser pulses
نویسندگان
چکیده
In our group, we perform successfully MALDI by using femtosecond laser techniques in order to examine the ionization process. One recent result is MALDI with ultrashort laser pulses in the near IR (central wavelength of =800 nm) [2]. In this wavelength regime, used matrix substances have no absorption bands. Experiments with different laser pulse durations suggest that multi photon ionization is a relevant factor. Charge transfer reactions have also been examined by using cations like K + instead of protons. Employing ultrashort laser pulses in the near IR regime, it was possible to apply coherent control techniques on MALDI. First results will be presented.
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