화학공학소재연구정보센터
Journal of Physical Chemistry A, Vol.111, No.7, 1163-1166, 2007
Frequency- and time-resolved coherence transfer spectroscopy
Frequency-domain two-color triply vibrational enhanced four-wave mixing using a new phase-matching geometry discriminates against coherent multidimensional spectral features created solely by radiative transitions, spectrally resolves pathways with different numbers of coherence transfer steps, and temporally resolves modulations created by interference between coherence transfer pathways. Coherence transfer is a nonradiative transition where a superposition of quantum states evolves to a different superposition. The asymmetric and symmetric CO stretching modes of rhodium(I) dicarbonyl acetylacetonate are used as a model system for coherence transfer. A simplified theoretical model based on Redfield theory is used to describe the experimental results.