Chemically selective microspectroscopy with broadband shaped femtosecond laser pulses [Elektronische Ressource] / Bernhard von Vacano

Chemically selective microspectroscopy with broadband shaped femtosecond laser pulses Dissertation zur Erlangung des Doktorgrads der Naturwissenschaften (Dr. rer. nat.) Bernhard von Vacano Fachbereich Chemie Philipps-Universität Marburg Marburg an der Lahn 2008 Chemically selective microspectroscopy with broadband shaped femtosecond laser pulses Dissertation zur Erlangung des Doktorgrads der Naturwissenschaften (Dr. rer. nat.) Bernhard von Vacano Fachbereich Chemie Philipps-Universität Marburg Marburg an der Lahn 2008 Erster Gutachter: Prof. Dr. Marcus Motzkus (FB Chemie) Zweiter Gutachter: . Ulrich Höfer (FB Physik) Tag der mündlichen Prüfung : 03.03.2008Weitere Prüfer: Prof. Dr. Norbert Hampp und Prof. Dr. Andreas Seubert (beide FB Chemie) Abstract This doctoral thesis presents a new, unified approach to nonlinear microspectroscopy employing tailored broadband femtosecond laser radiation. The key concept is to functionalize the femtosecond excitation in order to implement a series of multiphoton spectroscopy techniques, especially for microscopic imaging. The most important application is coherent anti-Stokes Raman scattering (CARS) spectroscopy, which allows chemical identification of untreated samples in microscopy due to their characteristic vibrational spectra.