2004/07/02 by Ilya A. Shkrob, Shkrob, Ilya A., Dmitri A. Oulianov +3
Chemical Engineering · Chemistry · Engineering · Physics and Astronomy · #Acoustic Wave Resonator Technologies #Analytical Chemistry and Sensors #Spectroscopy and Laser Applications #physics.class-ph #physics.optics
paper · pdf · doi:10.48550/arxiv.physics/0407017
23 pages + 8 figures
arxiv created 2004/07/02 · arxiv updated 2009/12/01
Single-shot ultrafast spectroscopy based on the frequency encoding of transient absorbance kinetics (FDSS) is demonstrated. These kinetics are sampled spectrally using linearly chirped pulses derived from a Ti:sapphire laser. A variable length grating pair compressor is used to provide group velocity dispersion out to -1.6 ps2 and achieve the sampling of 512 channels per a 2-to-160 ps window with sensitivity > 5e-4. The possibilities of FDSS are illustrated with studies of three photon ionization of liquid water and one-photon excitation of a thin-film