| Literature DB >> 12791987 |
Peifang Tian1, Dorine Keusters, Yoshifumi Suzaki, Warren S Warren.
Abstract
Femtosecond phase-coherent two-dimensional (2D) spectroscopy has been experimentally demonstrated as the direct optical analog of 2D nuclear magnetic resonance. An acousto-optic pulse shaper created a collinear three-pulse sequence with well-controlled and variable interpulse delays and phases,which interacted with a model atomic system of rubidium vapor. The desired nonlinear polarization was selected by phase cycling (coadding experimental results obtained with different interpulse phases). This method may enhance our ability to probe the femtosecond structural dynamics of macromolecules.Entities:
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Year: 2003 PMID: 12791987 DOI: 10.1126/science.1083433
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728