Frequency-domain "single-shot" (FDSS) transient absorption spectroscopy using a variable-length grating pair compressor
Optics
2007-05-23 v1 Classical Physics
Abstract
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 ps^2 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
Keywords
Cite
@article{arxiv.physics/0407017,
title = {Frequency-domain "single-shot" (FDSS) transient absorption spectroscopy using a variable-length grating pair compressor},
author = {Ilya A. Shkrob and Dmitri A. Oulianov and Robert A. Crowell},
journal= {arXiv preprint arXiv:physics/0407017},
year = {2007}
}
Comments
23 pages + 8 figures