Application of Femtosecond Upconversion Technique in Temporal Fluorescence Rejection in Raman Spectroscopy
Institute for Molecular Science
○Debabrata Mandal，Sergei Yu. Arzhantsev，田原太平
Abstract
We have applied for the first time, femtosecond upconversion technique to detect Raman scattering from a solvent (acetonitrile) in presence of strong solute fluorescence (coumarin 153) by means of temporal fluorescence rejection. Our technique,which employs a time resolution of about 100 femtoseconds, allows nearly 10 fold improvement in the rejection efficiency compared to previous methods where the time resolutions were several picoseconds
We have applied for the first time, femtosecond upconversion technique to detect Raman scattering from a solvent (acetonitrile) in presence of strong solute fluorescence (coumarin 153) by means of temporal fluorescence rejection. Our technique,which employs a time resolution of about 100 femtoseconds, allows nearly 10 fold improvement in the rejection efficiency compared to previous methods where the time resolutions were several picoseconds