TITLE

Broad-band fluorescence upconversion for femtosecond spectroscopy

AUTHOR(S)
Schanz, R.; Kovalenko, S. A.; Kharlanov, V.; Ernsting, N. P.
PUB. DATE
July 2001
SOURCE
Applied Physics Letters;7/30/2001, Vol. 79 Issue 5
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
With near-infrared gating and improved light collection geometry, the entire fluorescence band can be upconverted in a broad range of 10 000 cm-1 without readjusting optical elements, thus allowing measurements with a single pump-gate scan. Monitoring of the pump-induced white light continuum provides for the time correction of the up-converted fluorescence spectra. The overall time resolution is then limited by the pump-gate cross correlation. The technique is illustrated with the femtosecond evolution of fluorescence from two molecular probes in solution. © 2001 American Institute of Physics.
ACCESSION #
4864296

 

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