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Journal Article

Noisy Optical Pulses Enhance the Temporal Resolution of Pump-Probe Spectroscopy

MPS-Authors
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Meyer,  Kristina
Thomas Pfeifer - Independent Junior Research Group, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society;

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Ott,  Christian
Thomas Pfeifer - Independent Junior Research Group, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons30920

Raith,  Philipp
Thomas Pfeifer - Independent Junior Research Group, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons37846

Kaldun,  Andreas
Thomas Pfeifer - Independent Junior Research Group, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society;

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Jiang,  Yuhai
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;

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Senftleben,  Arne
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons30738

Kurka,  Moritz
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons30822

Moshammer,  Robert
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;

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Ullrich,  Joachim
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons30892

Pfeifer,  Thomas
Thomas Pfeifer - Independent Junior Research Group, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society;

External Resource

http://link.aps.org/doi/10.1103/PhysRevLett.108.098302
(Publisher version)

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Citation

Meyer, K., Ott, C., Raith, P., Kaldun, A., Jiang, Y., Senftleben, A., et al. (2012). Noisy Optical Pulses Enhance the Temporal Resolution of Pump-Probe Spectroscopy. Physical Review Letters, 108(9): 098302, pp. 1-5. doi:10.1103/PhysRevLett.108.098302.


Cite as: https://hdl.handle.net/11858/00-001M-0000-000F-A594-E
Abstract
Time-resolved measurements of quantum dynamics are based on the availability of controlled events that are shorter than the typical evolution time scale of the processes to be observed. Here we introduce the concept of noise-enhanced pump-probe spectroscopy, allowing the measurement of dynamics significantly shorter than the average pulse duration by exploiting randomly varying, partially coherent light fields consisting of bunched colored noise. These fields are shown to be superior by more than a factor of 10 to frequency-stabilized fields, with important implications for time-resolved experiments at x-ray free-electron lasers and, in general, for measurements at the frontiers of temporal resolution (e.g., attosecond spectroscopy). As an example application, the concept is used to explain the recent experimental observation of vibrational wave-packet motion in D2+ on time scales shorter than the average pulse duration.